Literatura académica sobre el tema "Rumen ciliates"
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Artículos de revistas sobre el tema "Rumen ciliates"
Fonty, Gérard, Jean Senaud, Jean-Pierre Jouany y Philippe Gouet. "Establishment of ciliate protozoa in the rumen of conventional and conventionalized lambs: influence of diet and management conditions". Canadian Journal of Microbiology 34, n.º 3 (1 de marzo de 1988): 235–41. http://dx.doi.org/10.1139/m88-044.
Texto completoKittelmann, Sandra, Savannah R. Devente, Michelle R. Kirk, Henning Seedorf, Burk A. Dehority y Peter H. Janssen. "Phylogeny of Intestinal Ciliates, Including Charonina ventriculi, and Comparison of Microscopy and 18S rRNA Gene Pyrosequencing for Rumen Ciliate Community Structure Analysis". Applied and Environmental Microbiology 81, n.º 7 (23 de enero de 2015): 2433–44. http://dx.doi.org/10.1128/aem.03697-14.
Texto completoTokura, Mitsunori, Kazunari Ushida, Kohji Miyazaki y Yoichi Kojima. "Methanogens associated with rumen ciliates". FEMS Microbiology Ecology 22, n.º 2 (17 de enero de 2006): 137–43. http://dx.doi.org/10.1111/j.1574-6941.1997.tb00365.x.
Texto completoBERBER, BELMA y GÖZDE GÜRELLİ. "Rumen Ciliate Fauna of Domestic Sheep in Kastamonu, Turkey, and Infraciliature of Diplodinium quinquespinosum, Metadinium affine, and M. tauricum (Entodiniomorphida, Ophryoscolecidae)". Zootaxa 4695, n.º 6 (13 de noviembre de 2019): 550–58. http://dx.doi.org/10.11646/zootaxa.4695.6.5.
Texto completoWright, André-Denis G. y Denis H. Lynn. "Phylogenetic analysis of the rumen ciliate family Ophryoscolecidae based on 18S ribosomal RNA sequences, with new sequences fromDiplodinium,Eudiplodinium, andOphryoscolex". Canadian Journal of Zoology 75, n.º 6 (1 de junio de 1997): 963–70. http://dx.doi.org/10.1139/z97-117.
Texto completoEschenlauer, S. C. P., N. R. McEwan, R. Onodera, R. J. Wallace y C. J. Newbold. "Cloning and properties of a lysozyme from the rumen ciliate protozoan, Entodinium caudatum". Proceedings of the British Society of Animal Science 2000 (2000): 55. http://dx.doi.org/10.1017/s1752756200000569.
Texto completoImai, S., S. S. Han, K. J. Cheng y H. Kudo. "Composition of the rumen ciliate population in experimental herds of cattle and sheep in Lethbridge, Alberta, Western Canada". Canadian Journal of Microbiology 35, n.º 7 (1 de julio de 1989): 686–90. http://dx.doi.org/10.1139/m89-112.
Texto completoCrha, J., J. Stříž, M. Skřivánek y Z. Valach. "Rumen Ciliates in Lamb Postnatal Ontogenesis". Acta Veterinaria Brno 60, n.º 2 (1991): 137–41. http://dx.doi.org/10.2754/avb199160020137.
Texto completoFinlay, Bland J., Genoveva Esteban, Ken J. Clarke, Alan G. Williams, T. Martin Embley y Robert P. Hirt. "Some rumen ciliates have endosymbiotic methanogens". FEMS Microbiology Letters 117, n.º 2 (abril de 1994): 157–61. http://dx.doi.org/10.1111/j.1574-6968.1994.tb06758.x.
Texto completoD., Purevtsogt, Zolzaya M., Demberel Shirchin y Dugersuren J. "SOME RESULTS OF STUDY ON COUNTS AND MORPHOLOGY OF RUMEN CILIATE PROTOZOA IN PASTURE-RAISED MONGOLIAN SHEEP LAMB". Mongolian Journal of Agricultural Sciences 19, n.º 3 (10 de enero de 2017): 16–21. http://dx.doi.org/10.5564/mjas.v19i3.730.
Texto completoTesis sobre el tema "Rumen ciliates"
Gnanasampanthan, Gnanapragasam. "Immune responses of sheep to rumen ciliates and the survival and activity of antibodies in the rumen fluid". Title page, contents and abstract only, 1993. http://web4.library.adelaide.edu.au/theses/09PH/09phg571.pdf.
Texto completoChristophersen, Claus. "Grain and artificial stimulation of the rumen change the abundance and diversity of methanogens and their association with ciliates". University of Western Australia. School of Animal Biology, 2008. http://theses.library.uwa.edu.au/adt-WU2008.0114.
Texto completoOrtolan, Josiane Hernandes. "Efeitos da levedura, monensina sódica e salinomicina na degradabilidade, digestibilidade, parâmetros ruminais e protozoários ciliados de novilhos Nelore arraçoados com dietas concentradas". Universidade de São Paulo, 2006. http://www.teses.usp.br/teses/disponiveis/74/74131/tde-17022006-114020/.
Texto completoFour Nelore Steers had been used, with average alive weight of 190 ± 32 kg, rumen cannulas, in an experiment with Squared delineation Latin 4x4, where the objective of the work was to evaluate the effect of the yeast culture, monensin and salinomycin on the rumen parameters and the appearance of ciliates protozoa. The experiment was executed in the Faculdade de Zootecnia e Engenharia de Alimentos of the Universidade de São Paulo. The diet offered to the animals was composed for ensilage and concentrated (30:70), where the four differed treatments had been submitted in accordance with the used additive, 5,0g of yeast culture (Beef Sacc), 0,42g of salinomycin (Coxistac), 2,0g of monensin (Rumensin) and the control without additive. The evaluated parameters had been ruminal degradability in situ of voluminous and the total diet, the concentration of volatile fatty acid concentration and ammoniac nitrogen concentration, pH ruminal, liquid passage, turnover and ruminal volume, and number and specie of ciliates protozoa. The experimental period was subdivided in twenty and one days of adaptation and seven of harvest, having totalized twenty and eight days for experimental period. The coefficients of degradability in the incubation periods of 0, 3, 6, 12, 24, 48, 72 and 96 hours had been measure. For the harvest of I eliminate ruminal had been used schedules 0, 2, 4, 6, 8 hours; the harvests of phase marker eliminate (PEG) had been carried through ace 0; 1,5; 3; 6; 12 and 24 hours after the feeding. It had increase of the value for fraction "b" in the MS, the treatment yeast culture, and the salinomycin treatment (p<0,05). Also it had a trend to increase fraction "b" in the FDN. The treatment yeast culture significantly increased the number of ciliates protozoa in rumen (p<0,05). The referring values to pH had not been affected by the treatments (p>0,05). The ammonia concentration and the values found for the kinetic ruminal had not been affected by the treatments (p>0,05). The use of ionophores improved the acid ratio of the acetic:propionic, propionic and butiric while the yeast culture increased the acids concentration of acetic (p<0,05).
Park, Tansol. "Towards a Better Understanding of the Metabolism, Physiology, and Ecology of Rumen Protozoa: New Insights from Culturomics and Genomics". The Ohio State University, 2017. http://rave.ohiolink.edu/etdc/view?acc_num=osu1511959620750916.
Texto completoEschenlauer, Sylvain Christain Pierre. "Lysosome in the rumen ciliate protozoan, Entodinium caudatum". Thesis, University of Aberdeen, 2000. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.327592.
Texto completoVale, Franciane Cedrola. "Taxonomia e morfologia de protozoários ciliados (Listostomatea, Trichostomatia) endossimbiontes de ruminantes domésticos no Brasil". Universidade Federal de Juiz de Fora (UFJF), 2016. https://repositorio.ufjf.br/jspui/handle/ufjf/5795.
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O presente estudo versa sobre taxonomia e morfologia de protozoários ciliados (Litostomatea, Trichostomatia) endossimbiontes de ruminantes domésticos no Brasil. O trabalho encontra-se dividido em quatro seções. A Seção 1 revisa os principais métodos em microscopia e biologia molecular utilizados no estudo taxonômico de protistas ciliados do rúmen. A Seção 2 apresenta um inventário de espécies de protozoários ciliados do rúmen de ovinos no Brasil, no qual foram inventariadas 28 espécies de ciliados, sendo que, Entodinium alces, Metadinium esalqum e Metadinium rotundatum foram observados pela primeira vez em ovinos e outras 12 espécies foram observadas pela primeira vez em ovinos no Brasil. Ainda, a sessão apresenta a redescrição da espécie Entodinium contractum com base na morfologia geral e descrição da infraciliatura oral; a Seção 3 faz a caracterização morfológica de seis morfotipos da espécie Diplodinium anisacanhum e breve revisão taxonômica do gênero Diplodinium. A caracterização morfológica e morfométrica dos morfotipos de D. anisacanthum demonstraram grande similiaridade entre os mesmos sugerindo que tais ciliados constituam uma única espécie dotada de polimorfismos. A breve revisão realizada destaca as incongruências taxonômicas existentes no gênero Diplodinium e aponta a necessidade de estudos recentes com os representantes deste gênero de modo a reformular a taxonomia do grupo. Por fim, a Seção 4 descreve uma nova espécie de ciliado ofrioscolecídeo, Diploplastron dehorityi e redescreve a espécie Diploplastron affine com base em dados morfológicos, morfométricos e detalhes da infraciliatura oral. A nova espécie difere em alguns aspectos da espécie D. affine. As placas esqueléticas em D. dehoryti não são justapostas e possuem formato recurvado. Ainda, a nova espécie possui o corpo em formato oval, diferindo do formato elíptico de D. affine. Além das semelhanças existentes entre a nova espécie e a espécie congênere, D. dehorityi possui grande similaridade morfológica com espécies pertencentes ao gênero Eremoplastron, diferindo apenas no número de placas esqueléticas.
This study is about taxonomy and morphology of endosymbiotic ciliated protozoa (Litostomatea, Trichostomatia) of Brazilian domestic ruminants. The work is divided into four sections. Section 1 reviews the main methods in microscopy and molecular biology used in the taxonomic study of rumen ciliates. Section 2 presents an inventory of species of ciliated protozoa Brazilian sheep, which were inventoried 28 species of ciliates, and, Entodinium alces, Metadinium esalqum and Metadinium rotundatum were first observed in sheep and other 12 species were first observed in Brazilian sheep. Still, the session shows the redescription of Entodinium contractum Kofoid & Christenson (Entodiniomorphida, Ophryosocolecidae) based on general morphology and description of oral infraciliature; Section 3 is the morphological characterization of a polymorphic species of ophryoscolecid ciliate Diplodinium anisacanhum da Cunha and a brief taxonomic revision of the genus Diplodinium Schuberg. The morphological and morphometric characterization of D. anisacanthum showed great similiarities among morphotypes suggesting that such ciliates constitute a single species endowed with polymorphism. A brief review conducted highlights the inconsistencies in the taxonomy of the genus Diplodinium and demonstrates the need for recent studies with representatives of the genus in order to improve the taxonomy of it. Finally, Section 4 describes a new species of ophryoscolecid ciliate Diploplastron dehorityi and redescribe the species Diploplastron affine (Dogiel & Fedorowa) based on morphological and morphometric characterization and details of oral infraciliature. The new species differs in some aspects of the species D. affine. The skeletal plates in D. dehorityi are not juxtaposed and have curved shape. Still, the new species has the oval body, differing from the elliptical body of D. affine. In addition to the similarities between the new species and congener species, D. dehorityi has great morphological similarity to species of the genus Eremoplastron, differing only in the number of skeletal plates.
Teixeira, César Roberto Viana. "Comparing the responses of rumen ciliate protozoa and bacteria to excess glucose". Universidade Federal de Viçosa, 2018. http://www.locus.ufv.br/handle/123456789/22141.
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Os microrganismos ruminais têm um papel central na nutrição de ruminantes. Eles têm a capacidade de fermentar componentes do alimento para produzir ácidos graxos voláteis (AGV’s) e crescer (sintetizar proteína microbiana), os quais fornecem a maior parte da energia e aminoácidos exigidos pelos animais. No entanto, quando são fornecidos carboidratos em excesso, a eficiência de crescimento dos microrganismos torna-se baixa porque estes direcionam a energia para outras funções, ao invés de a utilizarem para o crescimento. Diferentes microrganismos respondem a esse excesso de maneiras diferentes. Certas espécies respondem armazenando energia (sintetizando carboidratos de reserva), mas outras espécies respondem dissipando a energia na forma de calor. Para determinar a importância relativa dessas respostas na comunidade microbiana do rúmen, este estudo foi cinduzido com o objetivo de quantificar como os protozoários ciliados e as bactérias responderam à glicose. Teve-se como hipótese que os protozoários ciliados direcionariam mais glicose para a síntese de carboidratos de reserva e desperdiçariam menos energia na forma de calor, em relação as bactérias. Ciliados e bactérias foram isolados do líquido ruminal por filtração e centrifugação, respectivamente. Posteriormente, os ciliados e as bactérias foram suspensos em tampão isento de nitrogênio para limitar o crescimento e dosados com 5 mM de glicose. As amostras foram coletadas ao longo do tempo e, posteriormente, divididas por centrifugação em pellets (células) e sobrenadante. Amostras de pellets foram analisadas quanto à reserva de carboidratos e proteínas, enquanto amostras de sobrenadante foram analisadas para glicose livre, ácido D-L lático, ácido acético, propionato e butirato. Adicionalmente, foi analisado a produção de calor e gases de fermentação (H 2 , CH 4 e CO 2 ). O metabolismo endógeno, a síntese de carboidratos de reserva e o desperdício na forma de calor foram calculados a partir dos dados das análises. A maior parte dos dados foi analisada usando o PROC GLIMMIX do SAS. Teste t de Student foi usado para separar as médias ou determinar se as médias diferiam de 100%. Regressão local (pacote LOCFIT de R; Loader, 1999) foi usada para ajustar os dados das séries no tempo. Em comparação com as bactérias, os ciliados consumiram três vezes mais glicose e sintetizaram carboidratos de reserva quatro vezes mais rápido. Eles incorporaram 53% da glicose em carboidratos de reserva, quase o dobro do valor (27%) obtido para as bactérias. Desperdício de energia na forma de calor não foi detectado para os ciliados, uma vez que toda a produção de calor foi contabilizada pela síntese de reserva de carboidratos e pelo metabolismo endógeno. Em bactérias, a síntese de carboidratos de reserva e o metabolismo endógeno representaram apenas 68% da produção total de calor, assim, elas desperdiçaram grande quantidade de energia por meio da produção de calor (32% da produção total de calor). Esses resultados sugerem que os protozoários ciliados ruminais alteram o curso do metabolismo de carboidratos no rúmen, consumindo glicose mais rapidamente, limitando o uso do excesso de carboidratos pelas bactérias. Essa ação dos ciliados no rúmen provavelmente maximiza a síntese carboidratos de reserva, enquanto minimiza a ocorrência de desperdício de energia na forma de calor.
Rumen microbes hold a central role in ruminant nutrition. They ferment feed components to produce volatile fatty acids (VFA) and grow (synthesize microbial protein), which supplies the greater part of energy and amino acids required by the animals. However, when given excess carbohydrate, microbes growth efficiency becomes low because microbes direct energy to non-growth functions, instead of using it for growth. Different microorganisms respond to this excess in different ways. Certain species respond by storing energy (synthesizing reserve carbohydrate), but other species respond by dissipating the energy as heat (spilling energy). To determine the relative importance of these responses in the microbial community of the rumen, this study aims to quantify how mixed ciliate protozoa and bacteria respond to glucose. It was hypothesized that ciliate protozoa would direct more glucose to synthesis of reserve carbohydrate and less to energy spilling than would bacteria. Ciliates and bacteria were isolated from rumen fluid using filtration and centrifugation, respectively. Posteriorly, ciliates and bacteria were resuspended in nitrogen-free buffer to limit growth and dosed with 5 mM glucose. Samples were collected over time and were subsequently divided in pellet (cells) and supernatant by centrifugation. Pellet samples were analyzed for reserve carbohydrate and protein, while supernatant sample were analyzed for free glucose, D- /L-lactic acid, acetic acid, propionate and butyrate. Additionally, were analyzed heat production and fermentation gases (H 2 , CH 4 and CO 2 ). Endogenous metabolism, reserve carbohydrate synthesis and energy spilling were calculated from the data obtained from the analysis data. Most data were analyzed using PROC GLIMMIX of SAS. Student’s t- test was used to separate means or determine if means differed from 100%. Local regression (LOCFIT package of R; Loader, 1999) was used to fit time-series data to smooth curves. Compared to bacteria, ciliates consumed glucose more than 3-fold faster and synthesized reserve carbohydrate 4-fold faster. They incorporated 53% of glucose carbon into reserve carbohydrate, nearly double the value (27%) for bacteria. Energy spilling was not detected for ciliates, as all heat production was accounted by synthesis of reserve carbohydrate and endogenous metabolism. For bacteria, reserve carbohydrate and endogenous metabolism accounted for only 68% of heat production, thus they spilled large amounts of energy (32% of total heat production). These results suggest that rumen ciliates protozoa alter the course of carbohydrate metabolism in the rumen by consuming glucose more rapidly and outcompeting bacteria for excess carbohydrate. This action of the ciliates in the rumen likely maximizes reserve carbohydrate synthesis while minimizing spilling.
Ankrah, Peter. "Contribution of ciliate protozoa to the rumen fermentation and nutrition of the ruminant /". The Ohio State University, 1989. http://rave.ohiolink.edu/etdc/view?acc_num=osu1487598303839471.
Texto completoMartin, Heather Christine. "Isolation, purification and characterisation of a novel lysozyme from a rumen ciliate Entodinium caudatum". Thesis, University of Aberdeen, 1999. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.301203.
Texto completoValinote, Amaury Camilo. "Fontes de gordura e utilização de monensina nos parâmetros ruminais e protozoários ciliados de bovinos da raça Nelore". Universidade de São Paulo, 2004. http://www.teses.usp.br/teses/disponiveis/74/74131/tde-05032004-154844/.
Texto completoFour Nellore steers, with rumen cannulas and 502 ± 32 kg were utilized in a 4 x 4 Latin Square design experiment to evaluate the effects of diets with whole cottonseed or calcium salt of fatty acid as lipid source, on ruminal parameters and ciliate protozoa, as well as the monensin effect with diets with whole cottonseed. The study was carried out at Faculdade de Zootecnia e Engenharia de Alimentos (FZEA) of the Universidade de São Paulo (USP). The experimental treatments were: control diet (CRTL), salt calcium diet (SC), cottonseed diet (CA), and cottonseed diet without monensin (CASM). The parameters evaluated were roughage and total diet in situ degradability, volatile fatty acids concentration, amoniacal nitrogen concentration, ruminal pH, liquid passage, turnover and ruminal volume, and number and specie of ciliate protozoa. Each experimental period was consisted of 16 days of adaptation and 6 days of colletion, composing 22 days per experimental period. The degradability coefficients at the follow incubation periods: 0; 6; 12; 24; 48; 72 and 96 hours; were measure the rumen liquid and content was sampled at 0; 2; 4; 6 and 8 hours; the liquid marker collected at 0; 1.5; 3; 6; 12 and 24 after feeding. The sugar cane dry matter, and DM and EE total diet degradability did not show statistical difference (p>0.10). The ADF and NDF roughage degradability, and total diet CP degradability showed interaction time x treatment (p<0.07). The ruminal volume, liquid passage, pH, fatty acid concentration and N-NH3 , did not show statistical differences (p>0.10). The CA treatment showed higher turnover value (p=0.0691). The acetic:propionic proportion had time x treatment interaction (p=0.0228). The treatments with cottonseed decreased the total number of ciliate protozoa (p<0,01), especially for Entodinium (p<0,01). In this study conditions, monensin showed no effect when lipid was present on the diet. Even little unsaturated fat quantities in the rumen rumen, as cottonseed fatty acids were prejudicial to ciliate protozoa. The fat sources evaluated are alternatives to ruminant feeding, without deleterious effect to rumen function. The monensin addition seems to be unnecessary with diets with not protect fat. More works are necessary to study others additives on fat fed to ruminants, as well as the fat transformation on rumen environment.
Libros sobre el tema "Rumen ciliates"
Williams, Alan G. The rumen protozoa. New York: Springer-Verlag, 1991.
Buscar texto completoWilliams, Alan G. The rumen protozoa. New York: Springer-Verlag, 1992.
Buscar texto completoDehority, Burk A. Laboratory manual for classification and morphology of rumen ciliate protozoa. Boca Raton: CRC Press, 1993.
Buscar texto completoLaboratory Manual for Classification and Morphology of Rumen Ciliate Protozoa. Taylor & Francis Group, 2017.
Buscar texto completoBurk, A. Dehor¡ty. Laboratory Manual for Classification and Morphology of Rumen Ciliate Protozoa. CRC Press, 2018. http://dx.doi.org/10.1201/9781351073912.
Texto completoCapítulos de libros sobre el tema "Rumen ciliates"
Ushida, Kazunari. "Symbiotic Methanogens and Rumen Ciliates". En (Endo)symbiotic Methanogenic Archaea, 25–34. Berlin, Heidelberg: Springer Berlin Heidelberg, 2010. http://dx.doi.org/10.1007/978-3-642-13615-3_3.
Texto completoUshida, Kazunari. "Symbiotic Methanogens and Rumen Ciliates". En (Endo)symbiotic Methanogenic Archaea, 25–35. Cham: Springer International Publishing, 2018. http://dx.doi.org/10.1007/978-3-319-98836-8_3.
Texto completoMehlhorn, Heinz. "Ciliates in the Rumen of Cattle". En Encyclopedia of Parasitology, 502. Berlin, Heidelberg: Springer Berlin Heidelberg, 2016. http://dx.doi.org/10.1007/978-3-662-43978-4_4087.
Texto completoMehlhorn, Heinz. "Ciliates in the Rumen of Cattle". En Encyclopedia of Parasitology, 1–2. Berlin, Heidelberg: Springer Berlin Heidelberg, 2015. http://dx.doi.org/10.1007/978-3-642-27769-6_4087-1.
Texto completoWilliams, Alan G. y Geoffrey S. Coleman. "Association of Bacteria and Fungi with Rumen Ciliates". En Brock/Springer Series in Contemporary Bioscience, 165–72. New York, NY: Springer New York, 1992. http://dx.doi.org/10.1007/978-1-4612-2776-2_5.
Texto completoEllis, Jayne, Kevin Hillman, Alan G. Williams y David Lloyd. "Hydrogen Production by Rumen Ciliate Protozoa". En Microbiology and Biochemistry of Strict Anaerobes Involved in Interspecies Hydrogen Transfer, 377–79. Boston, MA: Springer US, 1990. http://dx.doi.org/10.1007/978-1-4613-0613-9_38.
Texto completoEllis, Jayne, Kevin Hillman, Alan G. Williams y David Lloyd. "Hydrogen and Methanogenesis in Rumen Liquor and in Rumen Ciliate/Methanogen Cocultures". En Microbiology and Biochemistry of Strict Anaerobes Involved in Interspecies Hydrogen Transfer, 373–76. Boston, MA: Springer US, 1990. http://dx.doi.org/10.1007/978-1-4613-0613-9_37.
Texto completoHuws, Sharon A., Cate L. Williams y Neil R. McEwan. "Ruminal-ciliated protozoa". En Improving rumen function, 191–220. Burleigh Dodds Science Publishing, 2020. http://dx.doi.org/10.19103/as.2020.0067.08.
Texto completoBurk, A. Dehor¡ty. "Classification of Rumen Ciliate Protozoa". En Laboratory Manual for Classification and Morphology of Rumen Ciliate Protozoa, 1–2. CRC Press, 2018. http://dx.doi.org/10.1201/9781351073912-1.
Texto completoBurk, A. Dehor¡ty. "Rumen Protozoa in the Order Entodiniomorphida". En Laboratory Manual for Classification and Morphology of Rumen Ciliate Protozoa, 19–20. CRC Press, 2018. http://dx.doi.org/10.1201/9781351073912-4.
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