Dissertations / Theses on the topic 'Abomasum'
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Cardoso, Felipe Cardoso de. "Deslocamento de abomaso à esquerda em vacas leiteiras de alta produção: variações no hemograma, indicadores bioquímicos sanguíneos e do funcionamento ruminal." reponame:Biblioteca Digital de Teses e Dissertações da UFRGS, 2007. http://hdl.handle.net/10183/10839.
Full textThe displacement of abomasum (DA) is a multifactorial disorder related to feed management affecting high yielding dairy cows mainly during early lactation. This work had the objective to evaluate biochemical profile for diagnose and treatment of left displaced abomasum (LDA) in dairy cows in the Planalto Region of Rio Grande do Sul. The samples were collected from ruminal fluid, blood and urine for the evaluation of biochemical, hematological and ruminal profile. The cows with LDA presented lower values of daily milk production (6,72 kg ± 3,85 and 26,86 kg ± 8,36), body weight (566,5 kg ± 51,12 and 602,9 kg ± 45,68) and corporal condition score (2,32 ± 0,4 and 602,9 ± 45,68). The utilization of reagent strips showed to be functional in the field when compared to a digital phmeter. The ruminal dynamics is much damaged in the cows affected by the LDA, as evidenced by the high values for the blue metilen reduction time (4,70 min. ± 1,89 and 1,66 min. ± 1,14). Besides the presentation of dehydration indicators, the urine pH, and serum lactate, aspartate transaminase and cholesterol presented to be auxiliary tools in the LDA prognoses and treatment. The treatment should consider fluid therapy and reestablish the ruminal dynamics of the cow.
Miranda, Maria Vivianne Freitas Gomes de. "Desenvolvimento dos pré-estômagos de bezerros mestiços aleitados com leite em pó associado ao soro de queijo em pó." Universidade Federal Rural do Semi-Árido, 2017. http://bdtd.ufersa.edu.br:80/tede/handle/tede/825.
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Coordenação de Aperfeiçoamento de Pessoal de Nível Superior
The aim of this study was to evaluate the use of whey powder associated with powdered milk as a substitute for whole milk without breastfeeding until 60 days of age on the development of pre-stomachs, growth and proliferation rate Cellular of the ruminal papillae, as well as an influence of the diets on as chymosin and pepsinogen producing cells of the calf abomasum through the immunohistochemical technique. To that end, 24 crossbred calves with one week of life were distributed in a completely randomized design with four treatments and six replicates: LI: whole milk (Control); LP: milk powder; LPS1: 80% milk powder + 20% whey powder; LPS2: 60% milk powder + 40% whey powder cheese. For the methods of dry matter (DM) consumption, measurements of hay consumption and concentrate are made by the supply / surplus method. The animals were slaughtered at 60 days of age. The cavity organs were weighed with contents, and soon thereafter emptied and newer, registering, full and empty weights, respectively. The weight of the stomach and its compartments were determined with absolute values (kg) and relative (%) as a function of the empty body weight (%PCVZ) and as a function of the weight of the whole stomach (%PE). Fragments of approximately one square centimeter (1cm2) of tissues were collected from 4 regions of the world: rumen atrium, dorsal sac, caudate-dorsal blind sac and ventral sac from where they are measured as heights of ruminal papillae. Proliferative activity was evaluated in tissue samples collected by counting Argirophilic Nucléole Organisms (AgNOR). Tissue samples of 1 cm2 of the abomasum were collected for immunohistochemistry. There was no difference for dry matter intake (P> 0.05). As averages obtained for absolute and relative weights as a function of the empty body weight of the digital compartments did not present significant residues (P> 0.05) between the treatments. Regarding the development of non-rumen papillae There were significant (P <0.05) for a height variable in the ventral sac, where animals receiving whole milk had higher averages. There were no significant differences (P> 0.05) for the rate of cell proliferation in ruminal papillae. The percentage of acini with immunoreactive cells to the chymosin and pepsinogen antibodies presented a statistical difference (P <0.05), where the calves that received a 100% whole milk diet presented a mean percentage of marking for upper chymosin (95.11%), Animals that consumed 60% milk powder + 40% whey powder (89.59%)
Objetivou-se avaliar o desenvolvimento dos pré-estômagos, o crescimento e a taxa de proliferação celular das papilas ruminais, em bezerros aleitados com sucedâneos (leite em pó e soro de queijo em pó) durante os 60 primeiros dias de vida. Verificar se a dieta pode influenciar as células produtoras de quimosina e pepsinogênio. Para isso, 24 bezerros mestiços com uma semana de vida foram distribuídos em um delineamento inteiramente casualizado com 4 (quatro) tratamentos e 6 (seis) repetições: LI: leite integral (Controle); LP: leite em pó; LPS1: 80% leite em pó + 20% de soro de queijo em pó; LPS2: 60% leite em pó + 40% de soro de queijo em pó. Para os cálculos de consumo de matéria seca (MS) foram feitas medições diárias de consumo de feno e concentrado pelo método de oferta/sobra. Os animais foram abatidos aos 60 dias de vida. Os órgãos cavitários foram pesados com conteúdo, e logo em seguida, esvaziados e novamente pesados, registrando-se, os pesos cheios e vazios, respectivamente. Foi determinado o peso dos estômagos e de seus compartimentos com valores absolutos (kg) e relativos (%) em função do peso de corpo vazio (% PCVZ) e em função do peso do estômago completo (% PE). Foram retirados fragmentos de aproximadamente um centímetro quadrado (1cm2) de tecidos de 4 regiões do rúmen: átrio ruminal, saco dorsal, saco cego caudo-dorsal e saco ventral de onde foram medidas as alturas das papilas ruminais. A atividade proliferativa foi avaliada em amostras de tecidos retiradas do rúmen por meio da contagem de Regiões Organizadoras de Nucléolos Argirofílicos (AgNOR). Foram coletadas amostras teciduais de 1cm2 do abomaso para a realização da imunohistoquímica. Não houve diferença significativa para o consumo de matéria seca (P>0,05). As médias obtidas para pesos absolutos e relativos em função do peso do corpo vazio dos compartimentos gástricos não apresentaram diferenças significativas (P>0,05) entre os tratamentos. Quanto ao desenvolvimento de papilas no rúmen houve diferenças significativas (P<0,05) para a variável altura no saco ventral, onde os animais que receberam leite integral possuíram maiores médias. Não houve diferenças significativas (P>0,05) para a taxa de proliferação celular nas papilas ruminais. Os percentuais de ácinos contendo células imunorreativas aos anticorpos quimosina e pepsinogênio apresentaram diferença estatística (P<0,05), onde os bezerros que receberam a dieta 100% leite integral, apresentaram média percentual de marcação para quimosina superior (95,11%), aqueles animais que consumiram a dieta 60% leite em pó + 40% de soro de queijo em pó (89,59%)
2017-11-27
Bentin, Leonardo Aparecido Teixeira. "Expressão gênica de TLR-2, TLR-4, HMGB1 E VEGF em úlceras abomasais em bovinos de corte /." Araçatuba, 2016. http://hdl.handle.net/11449/132424.
Full textBanca:Lina Maria Wehrle Gomide
Banca: José Paes de Oliveira Filho
Resumo: As úlceras abomasais atingem bovinos de todas as idades e raças em todos os sistemas de produção, gerando perdas econômicas. A úlcera resulta da isquemia, atraindo leucócitos e macrófagos, estimulando fibroblastos, células endoteliais e epiteliais. A proteína do grupo de alta mobilidade 1 (HMGB1) liga-se a diferentes receptores de superfície celular, incluindo Toll-like-2 (TLR-2) e -4 (TLR-4), produzindo citocinas. A presença da HMGB1 causa aumento dos níveis do fator de crescimento endotelial vascular (VEGF), um regulador fundamental da angiogênese. Assim, investigou-se a participação da HMGB1, TLR-2, TLR-4 e VEGF em úlceras abomasais em bovinos de corte. Um total de 150 abomasos de bovinos de corte foi examinado em um abatedouro; 17 amostras da região cárdica foram colhidas. Os tecidos extraídos foram classificados em grupo normal (sem ulceração de mucosa); ulceração de grau 1 (erosões não perfuradas com lesões mínimas da mucosa) e ulceração de grau 2 (erosões não perfuradas combinadas com sangramento moderado da mucosa) e confirmado pela histopatologia. A expressão dos genes nas amostras normais ou ulceradas no abomaso foi avaliada pela RT qPCR. Os dados foram submetidos à ANOVA seguido por teste de Bonferroni ao nível de p<0,05. Não houve diferença de expressão de HMGB1, de TLR-4 e de VEGF entre os dois tipos de úlceras em relação aos abomasos normais. Úlceras de grau 2 tiveram expressão de TLR-2 superior a úlceras de grau 1. O aumento da expressão de TLR-2 pode estar ass... (Resumo completo, clicar acesso eletrônico abaixo)
Abstract: Abomasal ulcers affect cattle of all ages and breeds in all production systems, leading to economic losses. The ulcer resulting from tissue ischemia, attracting leukocytes and macrophages, stimulates fibroblasts, endothelial and epithelial cells. The protein of high mobility group 1 (HMGB1) binds to different cell surface receptors, including Toll - like - 2 (TLR - 2) and 4 (TLR - 4) resulting in cytokine production. The presence of HMGB1 causes increased levels of vascula r endothelial growth factor (VEGF), a key regulator of angiogenesis. Thus, it was investigated whether HMGB1, TLR - 2, TLR - 4 and VEGF play a role in abomasal ulcers in beef cattle. A total of 150 abomasums from beef cattle were examined in a slaughterhouse; 17 samples were collected from the cardiac region. The extracted tissues were divided into normal group (without ulceration of the mucosa); type 1 ulcers (unperforated erosions with minimal mucosal injury) and type 2 ulcers (unperforated erosions combined with moderate bleeding of the mucosa) and confirmed by histopathology. Gene expression was evaluated by RT qPCR in samples of normal or ulcerated abomasums. Data were analyzed by ANOVA followed by Bonferroni test at p <0.05. No difference in expression of HMGB1, TLR - 4 and VEGF was detected between the two types of ulcers when compared to normal abomasums. TLR - 2 expression was higher in type 2 ulcers than in type 1 ulcers. Increased TLR - 2 expression might be associated with the maintenance of abomasal healin g, promoting the inflammatory response, as evidenced by the presence of mononuclear cell infiltration and neutrophils
Mestre
Bentin, Leonardo Aparecido Teixeira [UNESP]. "Expressão gênica de TLR-2, TLR-4, HMGB1 E VEGF em úlceras abomasais em bovinos de corte." Universidade Estadual Paulista (UNESP), 2016. http://hdl.handle.net/11449/132424.
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As úlceras abomasais atingem bovinos de todas as idades e raças em todos os sistemas de produção, gerando perdas econômicas. A úlcera resulta da isquemia, atraindo leucócitos e macrófagos, estimulando fibroblastos, células endoteliais e epiteliais. A proteína do grupo de alta mobilidade 1 (HMGB1) liga-se a diferentes receptores de superfície celular, incluindo Toll-like-2 (TLR-2) e -4 (TLR-4), produzindo citocinas. A presença da HMGB1 causa aumento dos níveis do fator de crescimento endotelial vascular (VEGF), um regulador fundamental da angiogênese. Assim, investigou-se a participação da HMGB1, TLR-2, TLR-4 e VEGF em úlceras abomasais em bovinos de corte. Um total de 150 abomasos de bovinos de corte foi examinado em um abatedouro; 17 amostras da região cárdica foram colhidas. Os tecidos extraídos foram classificados em grupo normal (sem ulceração de mucosa); ulceração de grau 1 (erosões não perfuradas com lesões mínimas da mucosa) e ulceração de grau 2 (erosões não perfuradas combinadas com sangramento moderado da mucosa) e confirmado pela histopatologia. A expressão dos genes nas amostras normais ou ulceradas no abomaso foi avaliada pela RT qPCR. Os dados foram submetidos à ANOVA seguido por teste de Bonferroni ao nível de p<0,05. Não houve diferença de expressão de HMGB1, de TLR-4 e de VEGF entre os dois tipos de úlceras em relação aos abomasos normais. Úlceras de grau 2 tiveram expressão de TLR-2 superior a úlceras de grau 1. O aumento da expressão de TLR-2 pode estar associado à manutenção da cicatrização, promovendo a resposta inflamatória, evidenciado pela presença de infiltrado inflamatório mononuclear e neutrófilos.
Abomasal ulcers affect cattle of all ages and breeds in all production systems, leading to economic losses. The ulcer resulting from tissue ischemia, attracting leukocytes and macrophages, stimulates fibroblasts, endothelial and epithelial cells. The protein of high mobility group 1 (HMGB1) binds to different cell surface receptors, including Toll-like-2 (TLR-2) and 4 (TLR-4) resulting in cytokine production. The presence of HMGB1 causes increased levels of vascular endothelial growth factor (VEGF), a key regulator of angiogenesis. Thus, it was investigated whether HMGB1, TLR-2, TLR-4 and VEGF play a role in abomasal ulcers in beef cattle. A total of 150 abomasums from beef cattle were examined in a slaughterhouse; 17 samples were collected from the cardiac region. The extracted tissues were divided into normal group (without ulceration of the mucosa); type 1 ulcers (unperforated erosions with minimal mucosal injury) and type 2 ulcers (unperforated erosions combined with moderate bleeding of the mucosa) and confirmed by histopathology. Gene expression was evaluated by RT qPCR in samples of normal or ulcerated abomasums. Data were analyzed by ANOVA followed by Bonferroni test at p <0.05. No difference in expression of HMGB1, TLR-4 and VEGF was detected between the two types of ulcers when compared to normal abomasums. TLR-2 expression was higher in type 2 ulcers than in type 1 ulcers. Increased TLR-2 expression might be associated with the maintenance of abomasal healing, promoting the inflammatory response, as evidenced by the presence of mononuclear cell infiltration and neutrophils.
Algarve, Margarida Isabel Perdigão. "Clínica de bovinos de leite: níveis de cálcio no período pós-parto em primíparas Holstein Frísia." Master's thesis, Universidade de Évora, 2011. http://hdl.handle.net/10174/12040.
Full textGoldfinch, Gillian Margaret. "Observations on the abomasal proteome during Teladorsagia circumcincta infection in sheep." Thesis, University of Edinburgh, 2010. http://hdl.handle.net/1842/4804.
Full textMorgado, Aline Alberti. "Avaliação ultrassonográfica, radiológica e do perfil metabólico de ovinos tratados com diferentes protocolos de administração de ranitidina." Universidade de São Paulo, 2013. http://www.teses.usp.br/teses/disponiveis/10/10136/tde-18112013-101619/.
Full textThe brazilian sheep production intensified, predisposing to increased incidence of digestive disorders such as abomasal ulcers. Ranitidine is used to prevent and treat this disease, however there is little information about the use of parenteral form of the drug in sheep. Data about the concomitant metabolic changes, as well as the behavior of the digestive system is scant. In this study, we used five healthy male sheep with ruminal and abomasal cannula. A Latin Square experiment 5 x 5 with 2 x 2 + 1factorial arrangement of treatments was run. Four levels of 1mg/kg and 2mg/kg administered intravenously (IV) every 12 (BID) and every 8 hours (TID) was compared to the control group, treated with 1 mL of saline per 25 kg, IV, BID. Higher concentrations of total protein, calcium, sodium and hemoglobin, increased AST activity and increased pH abomasum for 150 min were observed in all animals receiving the drug, regardless of dose and frequency. The BID treatment groups showed decrease the number of leukocytes. Increase of creatinine concentrations and decrease of plasma cortisol were observed in the TID group. Treatments 1 mg/kg TID and 2 mg/kg BID increased the number of red blood cells, decreased the interval between reticular contractions and serum pepsinogen. No changes were observed in fluid dynamics, the ruminal pH, vital functions and amplitude of reticular contractions. Contrast administered through abomasal cannula allowed the evaluation of abomasal and intestinal motility by radiography. The M-mode ultrasonography proved valuable in characterizing reticular contraction by the interval of contractions and a contraction curve correlating amplitude and time and.
Lehner, Stefanie Hedwig [Verfasser]. "Molecular genetic analyses for left-sided displacement of the abomasum in German Holstein cattle / Stefanie Hedwig Lehner." Hannover : Bibliothek der Tierärztlichen Hochschule Hannover, 2014. http://d-nb.info/1049653505/34.
Full textBaah, John. "Effect of particle size distribution in the reticulo-rumen, omasum and abomasum of sheep on voluntary intake and digestibility of forages." Thesis, University of British Columbia, 1990. http://hdl.handle.net/2429/28887.
Full textLand and Food Systems, Faculty of
Graduate
Godinho, Ricardo Freire. "Analgesia pós-cirúrgica em correcções de deslocamento de abomaso à esquerda." Master's thesis, Universidade Técnica de Lisboa. Faculdade de Medicina Veterinária, 2011. http://hdl.handle.net/10400.5/3579.
Full textA identificação da dor animal é um aspecto com cada vez maior importância na produção animal, assim como o é minimizar os processos dolorosos ao longo de todos os procedimentos de produção. Quando não for possível eliminar esses estímulos dolorosos, deve ser dada prioridade à devida analgesia. Um desses procedimentos dolorosos é a cirurgia, neste caso, a cirurgia correctiva de deslocamento de abomaso à esquerda. Como não é possível eliminar os estímulos dolorosos resultantes da cirurgia, o que nos resta é proceder à devida analgesia pós-cirúrgica. O objectivo deste trabalho foi perceber se a administração de carprofeno possui maior duração de analgesia do que a flunixina meglumina no maneio de dor pós-cirúrgico na correcção de Deslocamento de Abomaso à Esquerda (DAE). O carprofeno, tal como a flunixina meglumina, é um anti-inflamatório não esteróide, mas é menos utilizado na analgesia pós-cirúrgica devido ao seu custo, apesar de possuir um tempo de semi-vida superior ao da flunixina meglumina. O estudo foi realizado em 26 vacas de raça Holstein Frísia submetidas a correcção cirúrgica de DAE, que foram divididas em dois grupos: Grupo F (14 animais submetidos à administração de flunixina meglumina) e o Grupo C (12 animais submetidos à administração de carprofeno). A analgesia pós-cirúrgica foi avaliada utilizando parâmetros produtivos (produção leiteira nos 8 dias após a cirurgia) e utilizando parâmetros fisiológicos (corpos cetónicos por mensuração de β-hidroxibutiratos sanguíneos no dia 1, 2 e 4). Concluiu-se que não existem diferenças os entre fármacos na analgesia pós-cirúrgica na correcção de DAE, e que para obter resultados mais fidedignos mais estudo serão necessários no futuro.
ABSTRACT - Post-surgical analgesia adjustments left-side displacement of the abomasum - The identification of animal pain is an aspect with growing importance in animal production, as well as minimize the painful processes across all production procedures. When it´s not possible the elimination of the painful stimuli, the analgesia must be prioritized. One of this painful procedures is surgery, in this case, the corrective surgery of the left displaced abomasums (LDA). It is appropriate to perform postoperative analgesia since the elimination of painful stimuli resulting from surgery cannot be done. The objective of this work was to understand if the administration of carprofen has a longer duration of analgesia than the administration of flunixin meglumine in the management of postoperative pain in surgical correction of LDA. Carprofen, as flunixin meglumine, is an anti-inflammatory non esteriod, but it’s less is used, for postoperative analgesia, because of its cost, despite having a half-life greater than flunixin meglumine. The study was conducted on 26 Holstein Friesian cows undergoing surgical correction of LDA, which were divided into two groups: Group F (submitted to the administration of flunixin meglumine) and Group C (submitted to the administration of carprofen). The postoperative analgesia was assessed using production parameters (milk production in the 8 days after surgery) and using physiological parameters (ketone bodies, β-hydroxybutyrate blood on day 1, 2 and 4). It was concluded that there are not any differences between drugs in postoperative analgesia after the correction of the LDA, and that to obtain more reliable results more studies would be needed in the future.
Tischer, Katja. "Einfluß von Erythromycin auf die Labmagenentleerung bei Kühen mit linksseitiger Labmagenverlagerung und Volvulus abomasi." Doctoral thesis, Universitätsbibliothek Leipzig, 2010. http://nbn-resolving.de/urn:nbn:de:bsz:15-qucosa-61488.
Full textKirchner, Daniela. "Effekte oraler Rehydratationsmaßnahmen bei gesunden, durchfallkranken und experimentell dehydrierten Kälbern." Doctoral thesis, Universitätsbibliothek Leipzig, 2015. http://nbn-resolving.de/urn:nbn:de:bsz:15-qucosa-189855.
Full textAims of the present studies on oral rehydration management of calf diarrhoea were to reveal the effects of oral rehydration solutions (ORS) on abomasal milk clotting and abomasal diameter, as well as to compare the effectiveness of differently prepared ORS in calves with experimentally induced dehydration. For this purpose, two experiments were conducted: The first investigation in healthy and diarrhoeic calves should demonstrate via ultrasound whether the incorporation of bicarbonate-containing electrolyte powder into ‘milk meals’ impairs the abomasal coagulation of milk protein. At the same time, the ventrodorsal diameter of the abomasum was measured to outline abomasal emptying. This study is the first in which milk clotting in the abomasum of spontaneously diarrhoeic calves was investigated. The second investigation examined the effects of feeding milk replacer (MR), as well as ORS prepared in water or in MR on the fluid and acid-base balance of experimentally dehydrated calves. Materials and methods: Abomasal curd formation, as well as ventrodorsal diameter (= abomasal height), were ultrasonographically imaged in healthy (n = 28) and diarrhoeic calves (n = 15) before and after feeding milk, MR and ORS containing bicarbonate prepared in milk or MR, respectively. In the second investigation six calves were experimentally dehydrated according to a modified protocol of WALKER et al. (1998a). Subsequently, these calves were fed with either milk replacer (MR) or an ORS prepared in either water (water-ORS) or MR (MR-ORS). In one experiment, the dehydrated calves remained fasting. During the experimental period, venous blood samples were taken according to a defined schedule before and after induction of dehydration, as well as before and after feeding. Parameters of fluid and acid-base balance were determined at various timepoints. Results: After milk-feeding, a complete separation of curd and whey was always detected via ultrasound; whereas after MR-feeding, separation was incomplete. Feeding mixtures of milk or MR with ORS containing 62 - 93 mmol/L bicarbonate did not cause any differences in the ultrasonographic images of abomasal content compared to those of milk or MR. Moreover, abomasal milk clotting was not disturbed due to diarrhoea. Inadequate milk clotting of MR did not result in its faster abomasal passage but according to the significantly larger abomasal diameter starting from 4 h after MR-feeding gastric emptying of MR was slightly decreased when compared to milk. Within the two groups of experimental animals no statistically significant differences could be determined with respect to the abomasal diameter between the diets with and without addition of ORS. Statistically significant differences of abomasal diameter between healthy and diarrhoeic calves after feeding the same diet indicate that abomasal emptying is delayed in calves suffering from diarrhoea. Plasma volume increased significantly following the intake of a ‘fluid meal’ in experimentally dehydrated calves, whereas it remained constant in the absence of treatment. The rate of plasma volume expansion was reduced by feeding MR relative to water-ORS or MR-ORS. In dehydrated calves, the expansion of plasma volume was more pronounced following the intake of water-ORS compared to the feeding MR-ORS. Moreover, plasma osmolality increased significantly following the ingestion of hypertonic MR-ORS. The acid-base status of animals was corrected as a result of fluid absorption, but this effect was less obvious as the experimental protocol resulted in severe dehydration and only mild to moderate metabolic acidosis. Conclusions: Inadequate curd formation of an MR in the abomasum does not result in faster abomasal passage. Milk clotting in the abomasum is not affected when combining milk feeding with ORS containing 93 mmol/L of bicarbonate. Furthermore, abomasal curd formation is not disturbed due to diarrhoea. The addition of an bicarbonate-containing ORS in milk or MR does not result in faster abomasal passage of ingesta. In contrast to healthy calves, abomasal emptying is prolonged in diarrhoeic calves. Hence, further studies are needed to determine reasons for decelerated abomasal passage in calves suffering from diarrhoea. According to the results of the present study it can be concluded that combined feeding of milk/MR with an bicarbonate-containing ORS does not affect either milk clotting or abomasal emptying of the diet in diarrhoeic calves. Consequently, the addition of ORS to milk meal is possible. However, the results of the second investigation indicate that the feeding of hypertonic MR-ORS is less effective in increasing plasma volume of dehydrated calves than the water-based equivalent (water-ORS). In fact, administration of hypertonic MR-ORS increases plasma osmolality in dehydrated calves, potentially causing acute hypernatraemia in diarrhoeic calves. In a follow-up study to the present investigation, it could be demonstrated that feeding hypertonic milk-ORS combined with ad libitum access to water is an effective method of treating diarrhoeic calves because the high electrolyte content stimulates water intake of calves and there is no risk of hypernatraemia (WENGE et al. 2014). Based on these two studies, it can be concluded that diarrhoeic calves without free access to water should receive isotonic water-based ORS
Halliday, Aileen. "Ruminant immunity to abomasal parasites." Thesis, University of Edinburgh, 2013. http://hdl.handle.net/1842/8804.
Full textStanley, Hugh Gerard. "Neural mechanisms in abomasal motility." Thesis, University of Edinburgh, 1988. http://hdl.handle.net/1842/30009.
Full textStrain, Samuel Alexander James. "Immunity to abomasal parasites in lambs." Thesis, University of Glasgow, 2001. http://theses.gla.ac.uk/5435/.
Full textMorelli, Fernando Christiano Gabriel [UNESP]. "Quantificação de citocinas no conteúdo abomasal de bovinos de corte na presença ou ausência de ulceração gástrica." Universidade Estadual Paulista (UNESP), 2016. http://hdl.handle.net/11449/134249.
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Erosões e úlceras são achados comuns no abomaso e causam preocupação econômica nos mais variados sistemas de produção de gado. Muitos fatores podem predispor ao aparecimento de úlceras e acúmulo de gases no abomaso, incluindo alimentos grosseiros, estresse ambiental, deficiências de vitaminas e minerais e infecções bacterianas. Essas úlceras podem ser subclínicas, sendo descobertas nas necropsias ou após o abate do animal, ou levarem à redução da motilidade do órgão, prejudicando o fluxo do seu conteúdo e causando transtornos digestivos graves e até ao aparecimento de síndromes semelhantes à indigestão vagal. Existem informações a respeito da resposta do sistema imune na maior parte das mucosas do trato gastrintestinal de não-ruminantes e ruminantes, porém são raras a respeito do abomaso. Os objetivos desse estudo foram detectar os níveis de citocinas (IL-17A, IFN-γ, TNF-α, IL-10, IL-6, IL-4, IL-2) no conteúdo abomasal em bovinos de corte, determinar o perfil Th1 ou Th2 dessas citocinas em animais com úlceras de grau 1 e 2 na região cárdica abomasal e comparar esses valores com os níveis de citocinas de animais sem úlceras (controle), em amostras colhidas em abatedouro, para auxiliar na compreensão da fisiopatologia do processo inflamatório local. A avaliação macroscópica e a classificação das úlceras foi realizada por meio de exames visual e histológico em amostras de tecidos da parede da região cárdica abomasal ulcerada. Os níveis de citocinas produzidas do líquido abomasal dos animais com ou sem úlceras foram avaliados por citometria de fluxo (método Cytometric Bead Array). As citocinas citadas foram detectadas no líquido do abomaso dos bovinos. Não houve diferença na liberação das citocinas entre os grupos com úlceras e o grupo sem úlcera, indicando um equilíbrio entre perfis Th1 e Th2 da resposta inflamatória.
Erosions and ulcers are common findings in the abomasum and cause economic concern in several livestock production systems. Many factors may predispose to ulcers and bloat in the abomasum, including roughage, environmental stress, deficiencies of vitamins and minerals and bacterial infections. These ulcers may be subclinical and are found during necropsy or after slaughter, or lead to reduction of abomasal motility, hindering the flow of your content and causing serious digestive disorders and even the appearance of syndromes similar to vagal indigestion. There are some studies evaluating the immune system response in most of the mucous membranes of the gastrointestinal tract of non-ruminants and ruminants, but rarely related to the abomasum. The aims of this study were to investigate the levels of cytokines (IL-17A, IFN-γ, TNF-α, IL-10, IL-6, IL-4, IL-2) in the abomasal fluid of beef cattle, to determine the Th1 or Th2 profile of these cytokines in animals with types 1 or 2 ulcers located in the abomasal cardic region and to compare these levels with those of animals without ulcers (controls), in samples collected in an abbatoir, to help to the understand the pathophysiology of the local inflammatory process. Ulcers from the abomasal cardic region were macroscopicaly evaluated, then classified by histology. Cytokine levels in the abomasal fluid from animals with or without ulcers were evaluated by flow cytometry (Cytometric Bead Array). Cytokines were detected in the abomasum fluid of cattle. There was no difference in the release of cytokines between groups, indicating a balance between Th1 and Th2 profiles of the inflammatory response.
Morelli, Fernando Christiano Gabriel. "Quantificação de citocinas no conteúdo abomasal de bovinos de corte na presença ou ausência de ulceração gástrica /." Araçatuba, 2016. http://hdl.handle.net/11449/134249.
Full textBanca: Lina Maria Wehrle Gomide
Banca:Fernanda Bovino
Banca: José Paes de Oliveira Filho
Banca:Glenda Nicioli da Silva
Resumo: Erosões e úlceras são achados comuns no abomaso e causam preocupação econômica nos mais variados sistemas de produção de gado. Muitos fatores podem predispor ao aparecimento de úlceras e acúmulo de gases no abomaso, incluindo alimentos grosseiros, estresse ambiental, deficiências de vitaminas e minerais e infecções bacterianas. Essas úlceras podem ser subclínicas, sendo descobertas nas necropsias ou após o abate do animal, ou levarem à redução da motilidade do órgão, prejudicando o fluxo do seu conteúdo e causando transtornos digestivos graves e até ao aparecimento de síndromes semelhantes à indigestão vagal. Existem informações a respeito da resposta do sistema imune na maior parte das mucosas do trato gastrintestinal de não-ruminantes e ruminantes, porém são raras a respeito do abomaso. Os objetivos desse estudo foram detectar os níveis de citocinas (IL-17A, IFN-γ, TNF-α, IL-10, IL-6, IL-4, IL-2) no conteúdo abomasal em bovinos de corte, determinar o perfil Th1 ou Th2 dessas citocinas em animais com úlceras de grau 1 e 2 na região cárdica abomasal e comparar esses valores com os níveis de citocinas de animais sem úlceras (controle), em amostras colhidas em abatedouro, para auxiliar na compreensão da fisiopatologia do processo inflamatório local. A avaliação macroscópica e a classificação das úlceras foi realizada por meio de exames visual e histológico em amostras de tecidos da parede da região cárdica abomasal ulcerada. Os níveis de citocinas produzidas do líquido abomasal... (Resumo completo, clicar acesso eletrônico abaixo)
Abstract: Erosions and ulcers are common findings in the abomasum and cause economic concern in several livestock production systems. Many factors may predispose to ulcers and bloat in the abomasum, including roughage, environmental stress, deficiencies of vitamins and minerals and bacterial infections. These ulcers may be subclinical and are found during necropsy or after slaughter, or lead to reduction of abomasal motility, hindering the flow of your content and causing serious digestive disorders and even the appearance of syndromes similar to vagal indigestion. There are some studies evaluating the immune system response in most of the mucous membranes of the gastrointestinal tract of non-ruminants and ruminants, but rarely related to the abomasum. The aims of this study were to investigate the levels of cytokines (IL-17A, IFN-γ, TNF-α, IL-10, IL-6, IL-4, IL-2) in the abomasal fluid of beef cattle, to determine the Th1 or Th2 profile of these cytokines in animals with types 1 or 2 ulcers located in the abomasal cardic region and to compare these levels with those of animals without ulcers (controls), in samples collected in an abbatoir, to help to the understand the pathophysiology of the local inflammatory process. Ulcers from the abomasal cardic region were macroscopicaly evaluated, then classified by histology. Cytokine levels in the abomasal fluid from animals with or without ulcers were evaluated by flow cytometry (Cytometric Bead Array). Cytokines were detected in the abomasu... (Complete abstract click electronic access below)
Doutor
Gordo, Rita Isabel Nunes. "Contribuição para o estudo do deslocamento do abomaso numa exploração leiteira da região de Montemor-o-Velho." Bachelor's thesis, Universidade Técnica de Lisboa. Faculdade de Medicina Veterinária, 2009. http://hdl.handle.net/10400.5/1256.
Full textO deslocamento do abomaso é a patologia que mais frequentemente requer cirurgia abdominal em vacas leiteiras podendo, no entanto, afectar bovinos de qualquer idade e sexo. O deslocamento pode dar-se à esquerda (DAE) ou à direita (DAD), sendo este último por vezes complicado por torção ou vólvulo abomasal (VA). Entre estes, o mais frequente é o deslocamento à esquerda. Apesar de se tratar de uma doença descoberta no século XX, o facto de ter uma etiologia multifactorial faz com que seja uma afecção difícil de controlar. É uma patologia do periparto e, por isso, surge directamente associada ao maneio nutricional, principalmente àquele praticado no período de transição. Os contributos considerados essenciais para o DA são a atonia e a acumulação de gás abomasal, que consequentemente levam à distensão do órgão. São vários os factores de risco que favorecem a ocorrência do DA, entre eles destacam-se: o maneio alimentar, com especial atenção para a relação concentrado/forragem, níveis de NDF, fibra bruta e tamanho das partículas; idade, sexo, genética (raça, profundidade corporal), condições climatéricas, doenças concomitantes (cetose, hipocalcémia, retenção placentária, metrite, fígado gordo, mastite, patologia podal). Os sinais clínicos são comuns a diversas afecções, sendo importante a acentuada diminuição na produção de leite. O diagnóstico é baseado na auscultação associada a percussão, sendo audível uma ressonância metálica, e ainda na auscultação associada à sucussão, o que permite ouvir fluidos e sons de “chapinhar”. A correcção do deslocamento mais segura e que mais recidivas evita é a cirúrgica, para a qual estão descritas diversas técnicas. As perdas produtivas enunciadas e os encargos associados ao acompanhamento médico-veterinário fazem com que esta patologia tenha elevada importância económica. A prevenção desta doença está dependente do controlo dos vários factores de risco enunciados, procurando proporcionar uma boa adaptação do sistema digestivo, e evitar o desequilíbrio de nutrientes (principalmente energético, proteico e de cálcio), a imunossupressão durante o periparto e a diminuição da ingestão de matéria seca.
ABSTRACT - Contribution for the study of abomasal displacement in a Montemor-o-Velho dairy farm - Abomasal displacement is the pathology that most frequently requires abdominal surgery in dairy cattle, although it may affect cattle of all ages and sexes. The displacement can occur both to the left and the right, being this last at times complicated by torsion or abomasal volvulus. Between the two of them, it is the displacement to the left that occurs more often. Despite having been discovered in the 20th century, its multifactorial etiology makes it difficult to control. It’s a peripartum pathology and is thus directly associated with nutritional management programs, in particular those of the transitional period. Contributes that are considered essential for the abomasal displacement are atony and gas accumulation in the abomasum, which consequently lead to organ distension. Many risk factors favour the occurrence of abomasal displacement, namely: feeding management, with particular focus on the forage-concentrate ratio, NDF levels, crude fiber and particles sizes; age, sex and genetics (breed and corporal depth), weather conditions and concomitant diseases (ketosis, hypocalcaemia, retained placenta, metritis, fatty liver, mastitis, claw problems) Its clinical signs are common to many diseases, being very important the marked drop in milk production. The diagnosis is based on auscultation associated to percussion, resulting in an audible metallic resonance. It can also be made by auscultation associated to ballottment, which allows the listening of fluid-splashing sounds. The safest displacement correction and the one which avoids the most relapses is the surgical one, for which many techniques have been described. Productive losses and the expenses related to veterinary monitoring make this a particularly important pathology, economics-wise. Its prevention depends on the control of the many risk-factors mentioned above, in an attempt to provide a good adaptation of the digestive system, avoiding unbalanced nutrition (mainly energetic, protein-wise and calcium-wise), immunosuppression during the peripartum period and the reduction in dry matter ingestion.
Morgado, Aline Alberti. "Ação preventiva de fármacos antiácidos e potenciais biomarcadores para úlcera abomasal decorrente do uso de fenilbutazona em ovinos adultos." Universidade de São Paulo, 2018. http://www.teses.usp.br/teses/disponiveis/10/10136/tde-18062018-162112/.
Full textAbomasal ulcers reduce welfare and production of milk and meat, but information about their etiopathogenesis, diagnosis, prevention and treatment is still insufficient, especially for adult ruminants. Protocols used for prevention and treatment of this disease are extrapolated from those determined for gastric lesions in monogastric animals. However, there are still uncertainties about the preventive effect of these drugs, the used doses and best route of administration to ruminants. The preventive action of ranitidine and omeprazole on the development of abomasal ulcers was tested. The antacid drugs were administered concomitantly to phenylbutazone over seven days (4.4 mg/kg twice a day, intravenously). Eight healthy sheep, cannulated in abomasum, were distributed in two 4x4 Latin squares and treated with 2 mg/kg of ranitidine every 12 hours; 0.4 mg/kg of omeprazole, administered intravenously once a day; 4 mg/kg of omeprazole paste, administered orally once a day; or no antacid drug (control). Intravenously administered omeprazole caused phlebitis and a higher number of animals had lesions in the abomasal mucosa. Omeprazole paste was not effective in the prevention of type 1a ulcer. Although there was no difference between groups, ranitidine showed the lowest number of animals with lesions diagnosed by histological examination; however, this H2 antagonist caused an increase in heart rate. Measurements of pH and acidity of abomasal contents, serum pepsinogen and lysozyme concentrations, as well as fecal occult blood screening were concluded not to be valid biomarkers for type 1a abomasal ulcers in adult sheep.
Iposu, Shamsideen Oladeinde. "Effect of suckling on response to nematode parasites in young lambs." Diss., Lincoln University, 2007. http://hdl.handle.net/10182/115.
Full textNicholls, C. D. "Endoscopy, physiology and bacterial flora of sheep infected with abomasal nematodes." Thesis, University of Leeds, 1987. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.377967.
Full textWoko-Kobsch, Katalin Sahra. "Retrospektive Studie zu Rinderpatienten der Medizinischen Tierklinik der Universität Leipzig mit Exitus letalis zwischen 1990 und 2000 mit dem Schwerpunkt Dislocatio abomasi." Doctoral thesis, Universitätsbibliothek Leipzig, 2011. http://nbn-resolving.de/urn:nbn:de:bsz:15-qucosa-69374.
Full textScott, Ian. "Biochemical and structural changes in response to abomasal nematode infections in ruminants." Thesis, University of Glasgow, 1996. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.321717.
Full textCraig, Hannah L. "Characterisation of potentially host-protective material from the abomasal parasite, Teladorsagia circumcincta." Thesis, University of Edinburgh, 2004. http://hdl.handle.net/1842/14734.
Full textZwengauer, Rainer. "Begleiterkrankungen bei Kühen mit Dislocatio abomasi unter besonderer Berücksichtigung der Peritonitis." Doctoral thesis, Universitätsbibliothek Leipzig, 2010. http://nbn-resolving.de/urn:nbn:de:bsz:15-qucosa-38062.
Full textMelotti, Vitor Dalmazo. "Variação do pH intraluminal do abomaso em garrotes tratados com omeprazol oral." reponame:Repositório Institucional da UnB, 2017. http://repositorio.unb.br/handle/10482/24439.
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As úlceras de abomaso têm apresentado ocorrência crescente em bovinos de produção intensiva. No tratamento, utilizam-se medicamentos que aumentam o pH intraluminal do abomaso. Um desses fármacos é o omeprazol. Em bezerros, ainda pré-ruminantes, o efeito benéfico desse medicamento já foi bem evidenciado. Objetivou-se mensurar o pH intraluminal do abomaso em bovinos hígidos com 12 meses de idade recebendo omeprazol administrado via oral em duas apresentações, pasta e granulado. Foram utilizados 5 bovinos hígidos, com aproximadamente 12 meses de idade. O experimento consistiu em três grupos: grupo controle (GC), grupo pasta (GP) animais que receberam omeprazol na dose de (4 mg/kg) pela via oral em excipiente pasta cada 24 horas, e grupo granulado (GG) animais que receberam omeprazol na dose de (4 mg/kg) pela via oral em excipiente granulado cada 24 horas. Os tratamentos perduraram por 15 dias em cada grupo, com intervalos de 14 dias entre eles. As analises entre os três grupos, revelam que administração do omeprazol nos grupos GP e GG, proporcionou aumento dos valores de pH intraluminal do abomaso com diferença estatística no tocante ao GC, contudo esse acréscimo não foi observado no primeiro dia nos dois grupos tratamentos: GP (p = 0.100) e GG (p = 0.790), e também não foi notado no 14º dia do GP (p = 0.060). O presente estudo demonstrou que ocorreu um aumento significativo no pH intraluminal do abomaso dos animais que receberam o omeprazol, porém há a necessidade de realização de mais estudos terapêuticos com animais acometidos de abomasite e ulcera de abomaso.
Abomasal ulcers have been shown to be an increasing occurrence in cattle of intensive production. In the treatment, drugs are used that increase the intraluminal pH of the abomasum. One such drug is omeprazole. In calves, still pre-ruminants, the beneficial effect of this medicine has already been well evidenced. The objective of this study was to measure the intraluminal pH of the abomasum in healthy cattle at 12 months of age receiving omeprazole administered orally in two presentations, paste and granulate. Five healthy cattle, approximately 12 months old, were used. The experiment consisted of three groups: control group (CG), paste group (PG) animals that received omeprazole at the dose of (4 mg / kg) by oral route in pasta excipient every 24 hours, and granular group (GG) animals that received Omeprazole at the dose of (4 mg / kg) orally in granular excipient every 24 hours. The treatments lasted for 15 days in each group, with intervals of 14 days between them. Analyzes between the three groups revealed that administration of omeprazole in the PG and GG groups resulted in an increase in the intraluminal pH values of the abomasum with a statistical difference regarding CG, but this increase was not observed on the first day in the two treatments: GP (P = 0.100) and GG (p = 0.790), and it was also not noticed on the 14th day of PG (p = 0.060). The present study demonstrated that there was a significant increase in the intraluminal pH of the abomasum of the animals that received omeprazole, but it is necessary to carry out further therapeutic studies with animals affected by abomasitis and abomasal ulcer.
Thebille, Ellen Agnes Franziska. "Vorkommen und Ursachen der Dislocatio abomasi in den Regionen Paderborner Land und Münsterland." Doctoral thesis, Universitätsbibliothek Leipzig, 2008. http://nbn-resolving.de/urn:nbn:de:bsz:15-20080708-064941-5.
Full textAntanaitis, Ramūnas. "Fiziologinių duomenų tyrimai šliužo dislokacijos diagnostikai, profilaktikai ir gydymui." Doctoral thesis, Lithuanian Academic Libraries Network (LABT), 2008. http://vddb.library.lt/obj/LT-eLABa-0001:E.02~2008~D_20081219_122911-24371.
Full textThe objective of this work: To evaluate the possibility of the prognostic diagnostics of the displaced abomasums, the physiological status of the cow after the reposition of abomasums according as the particularity of the displaced abomasums’ morbidity, deviation of milk yield, milk conductivity, walking activity, body weight and milking duration. The problems of this work: 1. To do the research about the morbidity of the displaced abomasums; 2. To estimate the dynamics of the milk yield, milk conductivity, cow’s walking activity, body weight, milking duration before the abomasums was displaced; 3. To estimate the possible diagnostics according as the biochemical results of the blood serum, milk composition, deviations of the physiological indicators at the day of clinical diagnosis of the displaced abomasums; 4. To evaluate the dynamics of the milk yield, milk conductivity, cow’s walking activity, body weight, milking duration after the abomasums was displaced; 5. To evaluate in theory the prognosis of the milk yield changes after the early diagnostics and prophylactics. The possibility of prognostic diagnostics of the displaced abomasums, physiological status of the cow after the reposition of abomasums according as the particularity of the displaced abomasums’ morbidity, deviation of milk yield, milk conductivity, walking activity, body weight and milking duration were evaluated. The possibility of practical appliance of the examined parameters was justified.
Kastner, Annett. "Untersuchungen zum Fettstoffwechsel und Endotoxin-Metabolismus bei Milchkühen vor dem Auftreten der Dislocation abomasi." [S.l.] : [s.n.], 2002. http://dol.uni-leipzig.de/pub/2002-66.
Full textSilva, Iasmim Santos Mangabeira e. "Transcriptoma do abomaso de ovinos e poss?veis mecanismos de resposta a Haemonchus contortus." PROGRAMA DE P?S-GRADUA??O EM PRODU??O ANIMAL, 2017. https://repositorio.ufrn.br/jspui/handle/123456789/24075.
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Coordena??o de Aperfei?oamento de Pessoal de N?vel Superior (CAPES)
O objetivo deste estudo foi compreender os mecanismos moleculares associados ? resist?ncia de ovinos ?s infec??es por nematoides gastrintestinais. Foi comparado o transcriptoma da mucosa do abomaso de 17 ovinos mesti?os ? Santa In?s e ? Dorper, previamente classificados como infectados (resistentes e suscept?veis) e n?o infectados, distribu?dos em dois sistemas de alimenta??o (ad libitum e alimenta??o restrita) em resposta a infec??o por Haemonchus sp., utilizando a tecnologia RNA-Seq. A prepara??o das bibliotecas, o sequenciamento do genoma e a an?lise de dados foram realizadas no Laborat?rio de Biotecnologia Animal - ESALQ, Piracicaba, Brasil. A m?dia de sequ?ncias por amostra antes e depois da filtragem foi de 12.522.573 e 9.626.457, respectivamente, e a m?dia da taxa de mapeamento das leituras filtradas contra o genoma de refer?ncia do ovino Oar_v4.0 foi de 79,66%. Foram identificados como diferencilamente expressos (DE) 421 e 1123 genes quando comparado os animais infectados e n?o infectados, dentro do grupo de alimenta??o restrita e ad libitum, respectivamente. Quando avaliados os infectados inseridos na alimenta??o ad libitum versus alimenta??o restrita, 13 genes foram DE. Quando avaliados os animais resistentes e suscept?veis com efeito fixo de alimenta??o, apenas 36 genes foram DE. E por fim, comparando-se os animais infectados versus os controles tendo a alimenta??o como efeito fixo, foram identificados 881 genes DE. A an?lise de enriquecimento funcional mostrou que alguns termos do Gene Ontology foram significativamente enriquecidos (valor p ajustado<0,05). Nossos achados sugerem que al?m dos genes que participam diretamente do sistema imunol?gico, genes que participam de outras vias biol?gicas como o metabolismo do ?cido araquid?nico, via de sinaliza??o e sistema de complemento s?o essenciais na resposta do hospedeiro a Haemonchus contortus. Al?m disso, a alimenta??o n?o apresentou um efeito significativo no perfil de express?o g?nica dos animais infectados e n?o infectados, mostrando que a diferen?a entre a express?o dos genes foi devido ? infec??o por H. contortus.
The aim of this study was to understand molecular mechanisms underlying host resistance. We compared the abomasal mucosal transcriptome of 17 crossbred ? Santa In?s and ? Dorper lambs, previously classified as infected (resistant and susceptible) and uninfected distributed in two feeding system (ad libitum and restrict feed) in response to Haemonchus sp. infection using RNA-Seq technology. The libraries preparation, genome sequencing and sequence analyses were performed at the Laboratory of Animal Biotechnology - ESALQ, Piracicaba, Brazil. The average of reads per sample before and after filtering was 12.522.573 and 9.626.457, respectively, and the average of mapping rate of filtered reads against to Ovis aries Oar_v4.0 reference genome assembly was 79.66%. 421 and 1123 differentially expressed (DE) genes were identified when compared to infected and uninfected animals, within the restricted and ad libitum feed groups, respectively. When evaluated the infected animals inserted in the ad libitum feed versus restricted feeding, 13 genes were DE. When evaluated the resistant and susceptible animals with fixed feeding effect, only 36 genes were DE. Finally, by comparing infected versus control animals with feed as a fixed effect, 881 DE genes were identified. Functional enrichment analysis showed that some Gene Ontology terms were significantly enriched (adjusted p-value <0.05). Our findings suggest that in addition to genes that participate directly in the immune system, genes that participate in other biological pathways such as arachidonic acid metabolism, signaling pathway and complement system, for example, are essential in the host's response to Haemonchus contortus, generating a greater sheep resistance. In addition, feeding did not have a significant effect on the gene expression profile, showing that the difference between gene expressions was due to H. contortus infection.
Nyarku, Rejoice E. "Development and analytical validation of a genus-specific Brucella real-time PCR assay targeting the 16S-23S rDNA internal transcribed spacer." Diss., University of Pretoria, 2020. http://hdl.handle.net/2263/77428.
Full textDissertation (MSc)--University of Pretoria, 2019.
Veterinary Tropical Diseases
MSc
Unrestricted
Villa, Filho Paulo César. "Utilização de omeprazol em vacas leiteiras com presença de sangue oculto nas fezes." reponame:Repositório Institucional da UnB, 2014. http://repositorio.unb.br/handle/10482/16824.
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Na busca pela maior produtividade a seleção genética tem melhorado a produção individual, porem aumentando a susceptibilidade a doenças metabólicas e digestivas, principalmente no gado leiteiro que é mais exposto ao estresse da lactação, do manejo nutricional e do confinamento. A úlcera de abomaso é considerada uma doença importante no período puerperal e seu tratamento vem sendo discutido ao longo dos anos. O objetivo principal deste trabalho foi avaliar a eficácia no tratamento de vacas leiteiras com presença de sangue oculto nas fezes, sugestivo de ulceração abomasal ou abomasite, administrando omeprazol por via oral, assim como analisar variações de microhematócrito e proteína plasmática total e a associação do processo com fatores de risco. Foram utilizados animais adultos, de idade e número de lactações variadas, com média de produção de 17,6 kg leite/dia diagnosticados com sangue oculto nas fezes através do teste de sangue oculto nas fezes (SOF). Os animais foram divididos em três grupos de 10 indivíduos cada, sendo o grupo tratamento composto por animais positivos para SOF que receberam omeprazol peletizado 8,5% por via oral, o grupo controle, consistia em animais também positivos e receberam placebo e o grupo negativo onde os animais não apresentavam SOF e também foi administrado placebo. Observou-se 33 animais com presença de sangue nas fezes de um total de 698 examinados. O tratamento foi instituído por dez dias, durante este período avaliações buscando presença de sangue nas fezes e variações hematológicas foram realizadas em dias alternados. Foi observada melhora satisfatória nos animais com SOF tratados quando comparados aos que não receberam a droga, indicando desta forma ação do fármaco sobre o controle da doença (p=0,0055). Não houve diferença nos valores de hematócrito e proteínas totais entre os grupos. Em 90% dos animais positivos para SOF ocorreram doenças concomitantes, como metrite, cetose, mastite e claudicação, e/ou uso de antibióticos e antiiflamatórios não esteroidais, estes foram considerados fatores de risco (p<0,0001), predispondo ao desenvolvimento de ulceração abomasal. ______________________________________________________________________________ ABSTRACT
Aiming major productivity the genetic selection comes improving the animals, however increasing the susceptibility to metabolic and digestive diseases, mainly dairy cattle that is the most exposed to development due lactational stress, nutritional management and feedlot. The abomasal ulcer is considered one among diseases of puerperal period and its treatment is discussed along time. The main goal of this work was evaluating the effectiveness on treatment of dairy cattle with presence of occult blood on feces, suggesting abomasal ulceration or abomasitis, giving omeprazole via oral, thus as analyze variations of microhematocrit and total plasmatic protein and association of process with others risk factors that the animals are submitted in this period. Using adult animals, of age and varying number of lactations, with production averaged of 17,6kg milk/day diagnosed with occult blood on feces through occult blood assay on feces. The animals were divided in three groups of 10 individuals each, the group 1, compound by positive animals for SOF which receive pelleted omeprazole 8,5% via oral, the group 2, consists also on positive animals e received placebo, and the group 3 which the animals did not presented SOF and also was given placebo. There was 33 animals with blood in stool from a total of 698 examined. The treatment was instituted by ten days, during this period evaluations aiming presence of blood on feces and hematologic variations were performed on alternate days. Was identified improving satisfactory on treated animals when compared to not treated, showing of this way the pharmaco action on the control of disease (p=0,0055). There was no difference in hematocrit and total protein between groups. In 90% of positive animals for SOF occurred concomitant diseases, as metritis, ketosis, mastitis, claudication, and/or application of antibiotics and nonsteroidal anti-inflammatory, these were considered risk factors (p<0,0001), predisposing the development of abomasal ulceration.
Stertenbrink, Walter. "Dislocatio abomasi bei Schwarzbunten Kühen: Untersuchungen während der Trockenstehperiode sowie bis 14 Tage post partum." Doctoral thesis, Universitätsbibliothek Leipzig, 2009. http://nbn-resolving.de/urn:nbn:de:bsz:15-20091123-100952-2.
Full textBarletta, Rafael Villela. "Avaliação da cinética ruminal e fluxo abomasal de ácidos graxos em vacas leiteiras suplementadas com fontes lipídicas." Universidade de São Paulo, 2015. http://www.teses.usp.br/teses/disponiveis/10/10135/tde-12082015-160012/.
Full textThe objective of this study was to evaluate the ruminal biohydrogenation and intestinal flow of fatty acids in dairy cows supplemented with different lipid sources. Eight Holstein cows in mid lactation (180 ± 20 days in milk; mean ± SD) cannulated in the rumen and abomasum (580 ± 20 kg body weight; mean ± SD) were assigned randomly into in two 4 x 4 balanced latin squares, fed with the following diets: 1) control (C) diet based on corn and soybean meal; 2) soybean oil (SO); 3) whole raw soybean (WS); and 4) calcium salts of unsaturated fatty acids (CS). There was effect of lipid sources (P <0.05) on intake of dry matter, crude protein, NDF and NFC, where the animals fed with these sources had lower values. The ruminal pH values were higher (P <0.05) for animals supplemented with lipid sources. The C2 / C3 ratio was lower (P <0.05) in animals fed diets with lipids. Milk production, microbial protein synthesis and energy and nitrogen balances were not influenced by experimental diets. Animals fed diets containing lipid sources had higher serum concentrations of total cholesterol (P <0.05). The use of whole raw soybean influenced positively the fat content in milk, and led to lower concentrations of CLAs in the milk FA profile. NDF digestibility and DM passage rate were lower in animals fed diets with fat sources (P <0.05). Intake and abomasal flow of FA was higher (P <0.05) for animals supplemented with fat sources. Protected sources (CS and WS) promoted greater abomasal flow of C18: 2 and smaller biohydrogenation rate compared to the SO diet. The use of whole raw soybean increased abomasal flow of C18: 2, with less changes in digestive processes and animal metabolism.
Lopes, Aloízio Moraes. "Consumo, digestibilidade, parâmetros ruminais e produção microbiana em bovinos alimentados com capim-elefante (Pennisetum purpureum, Schum.), feno e pré-secado de capim-tifton 85 (Cynodon spp)." Universidade Federal de Viçosa, 2004. http://www.locus.ufv.br/handle/123456789/11216.
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Coordenação de Aperfeiçoamento de Pessoal de Nível Superior
Foram utilizados, quatro novilhos, Holandês-Zebu, castrados, fistulados no rúmen e abomaso, com peso vivo médio inicial de 279,0 kg distribuídos em um delineamento inteiramente casualizado. Determinaram-se os consumos e as digestibilidades aparentes totais e parciais de matéria seca (MS), matéria orgânica (MO), proteína bruta (PB), extrato etéreo (EE), carboidratos totais (CHOT), fibra em detergente neutro (FDN) e carboidratos não fibrosos (CNF). Foram avaliados três tratamentos constituídos pelos volumosos: capim-elefante picado (CE), feno de capim-tifton 85 (FT) e silagem pré-secada de capim-tifton 85. Foram usados três períodos experimentais com duração de 17 dias cada, sendo sete dias para adaptação dos animais, dez dias para coletas. Os fluxos de digesta abomasal e a excreção fecal foram estimados com óxido crômico. O capim elefante proporcionou menores consumos de MS, PB, FDN e NDT. As digestibilidades aparentes totais da MS e MO não foram influenciadas pelos diferentes volumosos. Contudo, registrou-se menor digestibilidade aparente total para o pré-secado. O valor da FDN encontrado foi maior para o feno e o pré-secado, que não diferiram entre si. Quanto a digestibilidade aparente ruminal dos nutrientes apenas a da MO foi influenciada pelos volumosos. As digestibilidades aparentes intestinal da MS, CHO e FDN não foram afetadas pelos volumosos. Contudo, detectou-se efeito de volumoso para a digestibilidade intestinal dos demais nutrientes. Foram utilizados, na presente pesquisa, quatro novilhos, Holandês-Zebu, castrados, fistulados no rúmen e abomaso, com peso vivo médio inicial de 279,0 kg distribuídos em delineamento inteiramente casualizado, em três tratamentos: o capim-elefante (Pennisetum purpureum, Schum.) picado (CE), feno de capim-tifton 85 (Cynodon spp.) no (FT) e silagem pré-secada de capim tifton-85 (Cynodon spp.) (PS). Os objetivos foram avaliar a produção de proteína microbiana, utilizando-se as bases purinas no abomaso e a excreção urinária de derivados de purinas em amostras spot; a excreção de uréia, a concentração plasmática de N-uréia, o pH e as concentrações de amônia ruminais. Cada alimento (tratamento) foi fornecido em um período experimental aos quatro animais. Cada período experimental teve duração de 17 dias, sendo sete de adaptação e 10 para coletas. Houve interação entre tratamento e tempo de coletas tanto para a N-NH 3 (P<0,05) quanto para o pH (P<0,01) ruminal. Estimaram-se concentrações máximas de N-NH 3 de 26,11, 13,36 e 9,69 mg/dl nos tempos de 3,07, 2,78 e 2,23 h após a alimentação, respectivamente, para a silagem pré- secada de capim tifton-85, o capim-elefante e feno de capim-tifton 85. Foram estimados valores mínimos de pH de 6,55 às 6,89h após a alimentação para o capim-elefante e de 6,61 às 1,44h após a alimentação, para o feno de capim- tifton 85. Já para a silagem, o pH diminuiu linearmente com o tempo após a alimentação. Não houve diferença significativa (P<0,05) para excreção de uréia na urina, sendo os menores (P<0,05) consumos de N, fluxo de N abomasal e valores de MODR e CHODR obtidos para o capim-elefante. Não houve diferenças (P<0,05) entre os tratamentos para a eficiência microbiana. A produção microbiana estimada pelos derivados de purina na urina não diferiu (P<0,05) da obtidas pelas bases purinas no abomaso.
Four castrated Zebu-Holstein, which were fistulated in the rumen and abomasum, from which the average initial alive weight was 279.0 kg were used. The animals were distributed into an entirely randomized experimental design with 3 stages. The evaluations were performed for the intakes and the total and partial apparent digestibilities of the dry matter (DM), organic matter (OM), crude protein (CP), ethereal extract (EE), total carbohydrates (CHO), neutral detergent fiber (NDF), non-fibrous carbohydrates (NFC).The animals’ diet was exclusively composed by feedstuff and mineral mixture ad libitum. The following feedstuff were used: chopped elephant-grass, hay of tifton-85 grass and pre- dried silage of tifton-85 grass. The experiment consisted of three periods that lasted 17 days each one, from which seven days were addressed to the animals’ adaptation and the other ten days for data collection. The abomasum digesta flows and the fecal excretion were estimated with chromic oxide. The elephant-grass provided lower intakes of DM, CB, NFC and TDN. The total apparent digestibilities of DM and OM were not affected by the different feedstuffs. However, a lower total apparent digestibility of CP was found for the haylage. Concerning to NDF a higher value was observed for the hay and ixhaylage, what did not differ from each others. In relation to the rumen apparent digestibility of the nutrients, only the OM’s was affected by the feedstuffs. The intestinal apparent digestibility of DM, CHO and NDF were not affected by the feedstuffs. However, the feedstuffs affected the intestinal digestibility of the other nutrients. The pH and the rumen ammonia concentration were affected by the foods, collection times and the interaction among these factors. The highest values of the ammonia concentrations were 26.11, 11.36 and 9.69 mg/dl at the times 3.07, 2.78, and 2.23h after feeding for the pre-dried silage of the tifton-85 grass, elephant-grass and the hay of tifton-85 grass, respectively. Concerning to the rumen pH, some lowest values of 6.55 and 6.61 were estimated at 6.89h and 1.44h after feeding for the elephant-grass and hay, respectively. However, the pH was linearly decreased with the collection time, for the haylage. In relation to the plasmatic urea concentration, no effects of the feedstuff were observed, since an average value of 14.6 mg/dl was found. Concerning to the bacteria isolated from the rumen, a lower value of TN was observed for the elephant-grass. However, no effects of the feedstuffs upon N-RNA and NRNA:NT relationship, neither on the urea excretion through urine were observed. The elephant-grass provided lower contents of RDOM and RDCHO. No influence of the feedstuffs upon the microbial efficiency independently of the expression was found. Similar values were found in estimating the microbial production obtained by the derivatives from purine in the urine, as well as by the purine bases in the abomasum.
Spring, Cécile. "Modification of spontaneous motility of smooth muscle preparations from the bovine abomasal antrum by different serotinin receptor agonists /." [S.l.] : [s.n.], 2002. http://www.ub.unibe.ch/content/bibliotheken_sammlungen/sondersammlungen/dissen_bestellformular/index_ger.html.
Full textZulauf, Marc André. "Spontaneous myoactivity of specimens from the abomasal wall of healthy cows in-vitro and comparison among dairy breeds /." [S.l.] : [s.n.], 2002. http://www.ub.unibe.ch/content/bibliotheken_sammlungen/sondersammlungen/dissen_bestellformular/index_ger.html.
Full textDeusdado, Carolinne Broglio. "Perfil metabólico, pH abomasal, urinário e fecal e dosagem de pepsinogênio sérico em ovinos tratados com omeprazol oral." Universidade de São Paulo, 2016. http://www.teses.usp.br/teses/disponiveis/10/10136/tde-03112016-181836/.
Full textTo evaluate the effect of oral omeprazole in healthy adult ruminants, five male sheep, two years old, healthy and provided with abomasal cannula, were used. Either received nothing (control group) or received oral omeprazole paste in dose of 4 mg /kg body weight every 24 hours for 7 days in experimental design of cross-over, with period of 'wash-out' of 7 days. Every day the animals were evaluated clinically and were performed the blood test, venous blood gas analysis; the measurement of electrolytes, biochemical profile, the concentration of pepsinogen and abomasal pH, urinary and fecal. It was held in last day trial period to 24 hours curve with an interval of two hours for the abomasal pH and serum pepsinogen. There was no treatment effect for the variables that remained within the physiological range for the sheep. The use of omeprazole at 4 mg / kg body weight for seven days, while not increasing the pH abomasal decreased the calcium ion concentration and serum chlorine
Seymour, William Matthew. "Responses to abomasal infusion of casein, hydrolyzed casein or methionine-lysine and dietary protein degradability in lactating cows." Diss., Virginia Polytechnic Institute and State University, 1987. http://hdl.handle.net/10919/49892.
Full textPh. D.
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Gonçalves, Joana Isabel Ribeiro da Costa. "Laparoscopia em ruminantes : utilização de uma técnica mini-invasiva na correcção do deslocamento do abomaso à esquerda." Master's thesis, Universidade Técnica de Lisboa. Faculdade de Medicina Veterinária, 2011. http://hdl.handle.net/10400.5/3621.
Full textO objectivo deste trabalho é descrever as principais aplicações da laparoscopia em ruminantes e o uso desta técnica na correcção do deslocamento abomasal, de forma regular, na clínica de animais de pecuária. A área da endoscopia tem tido uma evolução notável nas últimas décadas, para a qual têm também contribuído os avanços verificados a nível tecnológico. Em laparoscopia de ruminantes são geralmente usados laparoscópios rígidos e as principais vantagens desta cirurgia incluem o facto de ser mini-invasiva, a redução da duração do procedimento, poucas complicações e tempo de recuperação pós-cirúrgico mais curto. As principais desvantagens incluem o preço do equipamento, a curva de aprendizagem e a perda de sensação táctil em comparação com a cirurgia aberta. São indicados neste trabalho os tipos de equipamento comummente usados e sugestões de cuidados pré e pós cirúrgicos. A anatomia abdominal observada através do laparoscópio e possíveis abordagens cirúrgicas são também referidas. No que diz respeito ao deslocamento abomasal, para além de várias técnicas disponíveis para a sua correcção, é descrita a patogenia da doença, os factores de risco, a influência de doenças concomitantes e é apresentado um conjunto de casos observados na Clínica para Ruminantes (medicina interna e cirurgia) em Gießen submetidos a cirurgia laparoscópica segundo o método de Janowitz. A abomasopéxia por meio de colocação de toggle abomasal, seja pelo método de Janowitz, Christiansen ou Newman, Anderson e Silveira, são técnicas que podem ser praticadas com facilidade na clínica de campo.
ABSTRACT - Laparoscopy in ruminants: using a mini-invasive procedure for correction of the leftsided displaced abomasum. - The aim of this dissertation is to describe the main applications of laparoscopy in ruminants and the use of this method for the correction of the displaced abomasum, in a regular basis, in farm animals’ practice. The evolution on the endoscopy field during the past decades was remarkable, for what is also important the great advances verified in technology area. Rigid laparoscopes are commonly used in ruminants’ laparoscopy. Some advantages that are related with this kind of surgery are the mini-invasiveness, the reduction of the surgical time, the few complications and a recovery period faster than with conventional surgery. The main drawbacks are the price of the equipment, the learning curve and the lost of the tactile sensation comparing with open surgery. In this paper, there is a review of the equipment commonly used and some suggestions for pre and post-surgical care. The laparoscopic abdominal anatomy and some possible approaches are also referred. About the abomasum displacement, a description of various techniques used on its correction is
Craig, Nicola Margaret. "Cytokine gene expression in naïve and previously infected sheep and lambs after challenge with the abomasal nematode Teladorsagia circumcincta." Thesis, University of Edinburgh, 2010. http://hdl.handle.net/1842/4433.
Full textBandara, Aloka B. "Modifying Fatty Acid Composition of Bovine Milk by Abomasal Infusion or Dietary Supplementation of Seed Oils or Fish Oil." Diss., Virginia Tech, 1997. http://hdl.handle.net/10919/26254.
Full textPh. D.
Kastner, Annett. "Inaugural-Dissertation." Doctoral thesis, Universitätsbibliothek Leipzig, 2004. http://nbn-resolving.de/urn:nbn:de:bsz:15-qucosa-37421.
Full textThe displacement of abomasum (DA) frequently occurs in high yielding dairy cows. There is a lack of knowledge of its etiology. This paper examines whether dairy cows with DA show changes in the fat metabolism already in the initial stage, i.e. before clinical symptoms occur. The paper also analyses whether a relationship exists between endotoxin and the fat metabolism. Therefore a large variety of parameters were examined in blood: parameters of the fat and liver metabolism (betahy-droxybutyrat, free fatty acids, cholesterol, TG, phospholipids, alpha-, beta- and pre-beta-lipoproteins, bilirubin, ASAT, GGT, GLDH, LDH, glucose), free endotoxin, anti-lipid-A-antibodies (IgG), C-reactive protein, number of leukocytes, total protein, albumin, Fe as well as Na, K, Ca, Cl, Mg, anorganic phosphate, urine, creatinin and creatinkinase
Schwartau, Katja. "Peripartale hämatologische und klinisch-chemische Blutuntersuchungen zur Frühdiagnostik der Dislocatio abomasi, Gebärparese, Retentio secundinarum und Mastitis bei Milchkühen." Doctoral thesis, Universitätsbibliothek Leipzig, 2012. http://nbn-resolving.de/urn:nbn:de:bsz:15-qucosa-83749.
Full textCâmara, Antônio Carlos Lopes. "Deslocamento do abomaso em bovinos no Estado de Pernambuco: fatores de risco, aspectos clínicos, laboratoriais e avaliação terapêutica." reponame:Repositório Institucional da UnB, 2009. http://repositorio.unb.br/handle/10482/4635.
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A contínua seleção genética para maior produção de leite em conjunto com o aumento da capacidade digestiva e profundidade corporal aumentou a susceptibilidade à ocorrência de abomasopatias, incluindo o deslocamento do abomaso. Este trabalho objetivou realizar um estudo retrospectivo sobre o deslocamento de abomaso em 36 bovinos atendidos na Clínica de Bovinos, Campus Garanhuns da Universidade Federal Rural de Pernambuco, durante o período de janeiro de 2000 a fevereiro de 2009. Foram diagnosticados 27 casos de deslocamento do abomaso à direita, seis casos de deslocamento do abomaso à esquerda e três casos de vólvulo abomasal. Onze casos considerados moderados, sem grave distensão abdominal, apetite presente para a forragem e delimitação de som metálico até o 8 espaço intercostal, foram tratados clinicamente; enquanto 20 casos com distensão abdominal moderada a severa, associada a distúrbios sistêmicos, foram considerados graves e tratados cirurgicamente, entretanto duas vacas foram eutanasiadas devido peritonite difusa ou alterações graves na serosa do abomaso, totalizando 18 animais submetidos ao tratamento cirúrgico. Dois animais foram encaminhados para abate e três vacas chegaram prostadas e morreram sem receber nenhum tratamento. A análise dos fatores de risco identificou a estação chuvosa como estatisticamente significativa. O maior número de deslocamento do abomaso ocorreu em vacas mestiças com 24 casos (66,6%), seguida por bovinos da raça Holandesa com 11 (30,5%) e Gir com um (2,9%) caso. A composição da alimentação oferecida variou bastante e caracterizou-se por conter excesso de carboidratos e, na maioria dos casos, fibra de baixa qualidade. Os sinais clínicos mais frequentes foram comportamento apático, desidratação, timpanismo ruminal leve a severo com motilidade ausente ou diminuída, som de líquido ao balotamento do flanco direito, som de chapinhar metálico e/ou observação de uma estrutura similar a uma víscera distendida no gradil costal do lado correspondente ao deslocamento; fezes liquefeitas, enegrecidas e de odor fétido. Os achados hematológicos revelaram, na maioria dos casos, leucocitose neutrofílica e hiperfibrinogenemia. Na análise do fluido ruminal havia comprometimento da dinâmica da flora e fauna microbiana, e elevação no teor de cloreto em 93,9% dos casos, com o índice médio alcançando 47,66 mEq/L. O índice de recuperação clínica e cirúrgica alcançou 100% e 72,2%, respectivamente. As condutas descritas são opções viáveis para o tratamento dos deslocamentos leves e severos, no entanto a prevenção permanece a melhor alternativa a ser adotada. _________________________________________________________________________________________ ABSTRACT
The continuous genetic selection for high milk production in association with greater digestive capacity and corporal depth increases the susceptibility for abomasopathies including abomasal displacement. The present work aimed to accomplish a retrospective study on abomasal displacement in 36 cattle attended at Bovine Clinic, Garanhuns Campus, Federal Rural University of Pernambuco through January 2000 to February 2009. Twenty seven cases of right abomasal displacement, six cases of left abomasal displacement and three of abomasal volvulus were diagnosed. Eleven moderate cases, without severe abdominal distention, appetite for roughage and metallic sound (ping) reaching at the most the 8th intercostal space, were treated conservatively, and 20 severe cases with moderate to severe abdominal distention associated to systemic disturbances were treated surgically. However two cows were euthanized due to diffuse peritonitis or severe alterations in the abomasal serosa totalizing 18 animals submitted to the surgical treatment. Two animals were slaughtered and three cows arrived prostrated and died without receiving any treatment. Risk factor analysis identified rainy season as statistically significant. The greater number of abomasal displacement was in crossbred cows with 24 cases (66.6%), followed by Holstein and Gir cattle with 11 (30.5%) and one (2.9%) cases, respectively. Food composition varied greatly and characterized by excess of carbohydrates and in most cases low quality fibers. Most frequent clinical signs were apathy, dehydration, light to severe ruminal bloat with reduced or absent motility, splashing sound during right flank ballottement, ping and a distended viscera-like structure in the side of the displacement; liquid, blackish and fetid feces. Hematology reveals leukocytosis with neutrophilia and hyperfibrinogenemia in most cases. Ruminal fluid analysis showed compromised flora and fauna dynamics and increased chloride ion concentration achieving the media index of 47.66 mEq/L. Clinical and surgical recovery rate achieved 100% and 72.2%, respectively. Those methods described are viable options for the treatment of light and severe displacements, but the prevention remains the best choice.
Gandra, Luís Filipe Novais. "Clínica e cirurgia de bovinos de produção de leite." Master's thesis, Universidade de Évora, 2013. http://hdl.handle.net/10174/9482.
Full textMichel, Astrid. "In vitro effects of cisapride, metoclopramide, and bethanechol on smooth muscle preparations from the abomasal antrum and duodenum of dairy cows /." [S.l.] : [s.n.], 2003. http://www.ub.unibe.ch/content/bibliotheken_sammlungen/sondersammlungen/dissen_bestellformular/index_ger.html.
Full textDyck, Hugo Richard. "Levantamento epidemiológico da incidência de deslocamento de abomaso em bovinos leiteiros na região dos Campos Gerais no Estado do Paraná." reponame:Repositório Institucional da UFPR, 2016. http://hdl.handle.net/1884/44009.
Full textDissertação (mestrado) - Universidade Federal do Paraná, Setor de Ciências Agrárias, Programa de Pós-Graduação em Ciências Veterinárias. Defesa: Curitiba, 31/03/2016
Inclui referências : f. 25-28;41-45;47-53
Área de concentração : Ciências veterinárias
Resumo: O deslocamento de abomaso (DA) é uma doença metabólica que acomete, em sua maioria, vacas leiteiras de alta aptidão leiteira. O início da lactação é o momento em que ocorre uma inversão de metabolismo anabólico para catabólico, sendo os primeiros 30 dias os mais críticos para o aparecimento de diversas doenças, entre elas deslocamento de abomaso, hipocalcemia, cetose, endometrite, entre outras. Primeiramente, apresenta-se um capítulo de revisão sobre os principais fatores envolvidos no desenvolvimento de DA e possíveis técnicas cirúrgicas para tratamento. Posteriormente, relata-se um levantamento epidemiológico da incidência de DA no município de Palmeira, na região dos Campos Gerais no Estado do Paraná. Foram levantados dados de 135 casos de DA ocorridos naturalmente em 39 rebanhos leiteiros da região, num total de 6.454 animais e destes, 2.987 em lactação. O período de coleta se deu de julho de 2012 a junho de 2015, sendo a incidência de 2,09% do número total de animais. O DA foi classificado com deslocamento de abomaso a esquerda (DAE) e deslocamento de abomaso a direita (DAD), tendo o primeiro ocorrido em 127 (94,07%) casos e o segundo em 8 (5,93%). Sendo a região estudada uma importante bacia leiteira do Estado do Paraná, o aparecimento de doenças metabólicas, dentre elas o DA, deve demandar cuidados especiais para amenizar os custos e prejuízos causados por esses eventos. Palavras-chave: doença metabólica, atividade leiteira, vacas, produção
Abstract: Displacement of abomasum (DA) is a metabolic disease that mostly affects dairy cows with high dairy capabilities. The beginning of lactation is the time when an inversion from an anabolic metabolism into a catabolic metabolism occurs, and the first 30 days are the most critical for the outbreak of various diseases, among which displacement of abomasum, hypocalcemia, ketosis, endometritis, among others. First, a review chapter is presented on the main factors involved in the development of DA and potential surgical techniques for the treatment. Next, an epidemiological survey on the incidence of DA in the municipality of Palmeira, in the region of the General Fields in the State of Paraná is reported. Data from 135 cases of DA have been collected which naturally occurred among 39 dairy herds in the region, totalizing 6,454 animals where 2,987 thereof are lactating dairy cows. The collection period was from July 2012 to June 2015, and there was an incidence of 2.09% on the total number of animals. The DA was classified as left displacement of abomasum (LDA) and right displacement of abomasum (RDA), where the first one occurred in 127 (94.07%) cases and the latter in 8 (5.93%). Since the study area is a major dairy production basin in the State of Paraná, the outbreak of metabolic diseases, among them the DA, should require special attention to mitigate costs and losses caused by such events. Keywords: metabolic disease, dairy activity, cows, production
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Full textSchreiber, Katja. "Der Xyloseresorptionstest bei gesunden und kranken Kühen." Doctoral thesis, Universitätsbibliothek Leipzig, 2006. http://nbn-resolving.de/urn:nbn:de:swb:15-20070205-141048-9.
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