Дисертації з теми "Qualité de la carcasse"
Оформте джерело за APA, MLA, Chicago, Harvard та іншими стилями
Ознайомтеся з топ-50 дисертацій для дослідження на тему "Qualité de la carcasse".
Біля кожної праці в переліку літератури доступна кнопка «Додати до бібліографії». Скористайтеся нею – і ми автоматично оформимо бібліографічне посилання на обрану працю в потрібному вам стилі цитування: APA, MLA, «Гарвард», «Чикаго», «Ванкувер» тощо.
Також ви можете завантажити повний текст наукової публікації у форматі «.pdf» та прочитати онлайн анотацію до роботи, якщо відповідні параметри наявні в метаданих.
Переглядайте дисертації для різних дисциплін та оформлюйте правильно вашу бібліографію.
Xavier, Caroline. "Estimation fine des compositions du corps vide et de la carcasse du bovin par imagerie en trois dimensions (3D) et absorptiométrie bi-photonique à rayons X (DXA)." Electronic Thesis or Diss., Rennes, Agrocampus Ouest, 2022. http://www.theses.fr/2022NSARB362.
Повний текст джерелаMeat production from beef-on-dairy crossbred cattle is common in Switzerland and of growing interest in France. In order to optimize those production systems performances, a fine monitoring of body composition is possible thanks to three-dimensional (3D) imaging on living cattle and dual-energy X-ray absorptiometry (DXA) for the carcass. Non-invasive and high-throughput methods, their precision still needs to be determined. Empty body and carcass chemical (n = 142) and tissue (n = 30) compositions of purebred (n = 22 Simmental) or crossbred (n = 120; dam: Swiss Brown and sire: Angus, Simmental or Limousin) cattle were determined together with 3D and DXA measurements. Relationships were established between body and carcass reference compositions and estimative variates from 3D and DXA imaging, or 11th rib dissection using multiple linear or partial least squares regressions.The 3D imaging provided precise estimates of empty body and carcass chemical compositions (R2 = 0.95; prediction errors (RMSEP) = 7 kg). Precision for carcass composition was the highest from a half-carcass DXA scan, and slightly decreased with 11th rib scan (R2 = 0.95; RMSEP = 2 kg). Nevertheless, this approach is convenient and time saving. Except for half-carcass DXA scan, most equations were affected by breed. The 3D and DXA imaging methods are of interest for the fine estimation and monitoring of the body and carcass compositions of beef cattle. After automation of the measurements, they will find applications for precision livestock farming and carcass classification in slaughterhouses
Liméa, Léticia. "Effets des conditions d'alimentation et d'abattage sur les caractéristiques de carcasse et de viande du Caprin Créole." Phd thesis, AgroParisTech, 2009. http://pastel.archives-ouvertes.fr/pastel-00658134.
Повний текст джерелаMarchetti, Anna. "Valutazione della qualità delle carcasse suine in un impianto di lavorazione industriale." Master's thesis, Alma Mater Studiorum - Università di Bologna, 2022.
Знайти повний текст джерелаGambardella, Mirko. "Effetto delle fasi di macellazione sulle rese e sulla qualità delle carcasse avicole." Master's thesis, Alma Mater Studiorum - Università di Bologna, 2019.
Знайти повний текст джерелаBrodeur, Vincent. "Association entre les polymorphismes et l'expression du gène de la leptine et la qualité de la viande et de la carcasse chez l'agneau lourd." Master's thesis, Université Laval, 2018. http://hdl.handle.net/20.500.11794/28354.
Повний текст джерелаThe purpose of this study was to evaluate the effects of the molecular characteristics of the ovine leptin gene (LEP) on characteristics related to meat and carcass quality in a lamb population from the Province of Quebec. The studied population consisted of 128 individuals (½ males, ½ females) from 2 crossbreeds : ½Suffolk ¼Romanov x¼ Dorset (xSU) and ½Arcott Canadian ¼Romanov ¼Dorset (xCD). Sequencing of the LEP gene was performed. The gene was then sequenced for each individual and its parents, between exon 2 and exon 3, in order to search for variations within a 2328 base pairs DNA strand. Twenty-three polymorphisms were identified; 12 have been the subject of further studies and have shown interesting effects on meat and carcass quality. Expression of the LEP gene was measured in subcutaneous adipose tissue using the real-time PCR method. Significant correlations were established between gene activity and variations in meat color parameters in male lambs of the xCD crossbreed. The thickness of the muscle measured with ultrasound in this same crossbreed was positively related to the activity of the LEP gene. Correlations were also established between leptin concentration in blood, LEP gene expression, and a few characteristics related to lean yield of the longissimus dorsi muscle as well as the color of the meat. The study of the sheep leptin gene, as part of this project, offers some avenues that could lead to the development of genetic markers that could help in the selection of breeding sheep to improve the meat and carcass quality of lamb produced in Québec.
Brassard, Marie-Ève. "L'alimentation à base de concentrés ou de pâturage affecte la digestion, la croissance de même que la qualité de la carcasse et de la viande du chevreau." Doctoral thesis, Université Laval, 2019. http://hdl.handle.net/20.500.11794/34001.
Повний текст джерелаIt has been suggested that microbial protein synthesis in the rumen would be optimized when dietary carbohydrates and proteins have synchronized rates and extent of degradation. The first objective of this thesis was to evaluate the effect of varying ruminal degradation rate of carbohydrates and nitrogen sources on intake, nitrogen balance, microbial protein yield in the rumen, and digestive kinetics of nutrients in the rumen of growing kids. Eight Boer goats were used. The treatments were arranged in a split-plot Latin square design with grain sources (barley or corn) forming the main plots (squares). Grain processing methods (rolled barley and cracked corn vs unprocessed grains) and levels of protein degradability [untreated soybean meal (SBM) vs heat-treated soybean meal (HSBM)] formed the subplots in a 2 × 2 factorial arrangement for a total of eight dietary treatments. Kids fed corn had higher excretion of purine derivatives (PD) when coupled with SBM compared with HSBM and the contrary occurred with barley-fed kids (P ≤ 0.01). Unprocessed grain offered with SBM led to a higher PD excretion than with HSBM whereas protein degradability had no effect when processed grain was fed (P ≤ 0.03). Results of this experiment with high concentrate diets showed that microbial N synthesis in the rumen could be maximized in goat kids by combining slowly fermented grains (corn or unprocessed grains) with a highly degradable protein supplement (SBM). With barley, a more rapidly fermented grain, a greater microbial protein synthesis in the rumen was observed when supplementing a low degradable protein (HSBM). Each cereal used in animal feeding has distinct characteristics. Therefore, the second experiment of this thesis was conducted to compare the impact of corn and barley on growth performance, meat quality, and muscle fatty acid (FA) composition of goat kids. Twenty-four Boer males were blocked by body weight (BW) and allotted randomly within block to one of three experimental diets. Treatments consisted in varying ratios of barley to corn in the concentrate: 1) 100:0, 2) 50:50, and 3) 0:100. Fifteen randomly selected kids (n = 5 kids/treatment) were slaughtered to evaluate carcass traits and meat quality. Inclusion of barley in diet linearly increased concentrate intake (P < 0.01) and tended to increase average daily gain (ADG; P = 0.08). There was no significant difference on carcass traits and meat quality among dietary treatments, and overall good meat quality was obtained. Proportions of n-3 and n-6 FA increased linearly (P < 0.01), whereas the n-6/n-3 FA ratio linearly decreased (P < 0.01) in meat fat as corn inclusion increased in the diets. Finally, breed is a parameter also known to influence meat production and quality. The aim of the last study of this thesis was to evaluate the effects of breed and feeding regimen on growth performance, carcass characteristics, and meat quality of male goat. Forty meat (Boer) or dairy (Alpine and Saanen) goat kids were blocked within breed according to BW. Kids within each block were then randomly allotted to intensive rotational grazing or a concentrate-based diet. Meat kids had a greater ADG than dairy kids (P < 0.01), but feeding treatments did not affect growth rate. For most of the primal cuts, meat kids accumulated more fat and less lean when they were fed concentrate in comparison with pasture, whereas these parameters were less influenced by dietary treatments in dairy kids (feed × breed, P ≤ 0.07). Pasture-fed kids had higher glycolytic potential resulting in lower meat ultimate pH. However, Warner-Bratzler shear force was higher for grazing kids compared with concentrate-fed kids (P < 0.01). Concentrate-fed kids showed an almost 4-fold greater n-6/n-3 FA ratio in meat fat compared with pasturefed kids, whereas this ratio was 1.4-fold greater for dairy kids in comparison with meat kids (P < 0.01). Intensive rotational pasture allowed similar average daily gain in comparison with concentrate-based diet, less internal fat accumulation in the carcass, and good meat quality. Furthermore, dairy breeds represented a valuable alternative for producing goat meat.
Correa, Jorge Andrés. "Évaluation des impacts de la vitesse de croissance et du poids d'abattage des porcs commerciaux sur la composition de la carcasse et la qualité de la viande." Master's thesis, Université Laval, 2007. http://hdl.handle.net/20.500.11794/19298.
Повний текст джерелаCorrea, Moreno Jorge Andrés. "Évaluation des impacts de la vitesse de croissance et du poids d'abattage des porcs commerciaux sur la composition de la carcasse et la qualité de la viande." Thesis, Université Laval, 2007. http://www.theses.ulaval.ca/2007/24773/24773.pdf.
Повний текст джерелаCotta, Judas Tadeu de Barros. "Qualité des carcasses de poulets : aspects zootechniques, technologiques, microbiologiques et sensoriels." Montpellier 2, 1986. http://www.theses.fr/1986MON20059.
Повний текст джерелаBouchard, Sébastien. "Effets du poids d'abattage, de la vitesse de croissance et des sexes sur les caractéristiques musculaires et les relations avec la qualité de la viande." Thesis, Université Laval, 2008. http://www.theses.ulaval.ca/2008/25598/25598.pdf.
Повний текст джерелаMcNamara, Denise. "Endocrine associations with beef carcass quality and yield." Diss., Columbia, Mo. : University of Missouri-Columbia, 2007. http://hdl.handle.net/10355/5954.
Повний текст джерелаThe entire dissertation/thesis text is included in the research.pdf file; the official abstract appears in the short.pdf file (which also appears in the research.pdf); a non-technical general description, or public abstract, appears in the public.pdf file. Title from title screen of research.pdf file (viewed on March 7, 2008) Includes bibliographical references.
Du, Toit Francois Matthys. "Post mortem carcass interventions to improve beef quality." Thesis, Stellenbosch : University of Stellenbosch, 2010. http://hdl.handle.net/10019.1/4359.
Повний текст джерелаENGLISH ABSTRACT: A total of 32 cattle were divided into four groups of eight each (A1-8, A9-16, A17-24, B1-B8) to be slaughtered on different days over a period of 45 days. All the cattle in Groups A were of Bonsmara type and those in Group B were of Charolais type. Three treatments, Tenderstretch (TS), Tendercut (TC) and Hock suspension (HS) were randomly allocated to each of the 48 sides from group A. Only two treatments (TC and HS) were implemented on the carcass sides in Group B alternating between the right and left sides. Two muscles from each side namely Gluteus medius and Longissimus dorsi were evaluated for purge, cooking loss, shear force and sarcomere length after 2, 4, 6, 10 and 14 days of aging. Paired t-Tests were performed for each pair of treatments and each day separately, on all variables accessed (Snedecor, 1980). The differences in purge and cooking loss between treatments were all found to be inconclusive for each day of aging. Although purge had significant differences between the treatments TC and TS for the GM and LD muscle after 14 days of aging (P = 0.0341 and P = 0.0348 respectively) these were found to be open to doubt as the treatment that delivers the most purge differs between muscles and that the two treatments delivered no differences compared to its HS values. Aging had a significant effect on purge as it doubles after 14 days of aging. Cooking loss values only differed significantly on day 2 for the LD muscle between treatments TC and HS. The differences in shear force were all smaller than 0.3205 kg/ 1.27cm and not consistent over all carcasses. A mean positive improvement in tenderness was calculated from high difference in mean values from some carcasses although some carcasses showed a decrease in tenderness when using TS and TC, which suggests that the treatments are of no relevance towards the industry. Although the differences in shear force become smaller as aging commences, it is not constant, a phenomenon most probably due to the variance between animals. Aging again had the most significant effect (P<.0001) on shear force. Correlations between sarcomere lengths and shear force were low for all the treatments on the GM muscle (HS = -0.453; TC = -0.401 and TS = -0.2) but in the LD muscle the TS method showed a higher correlation (TS = -0.665) than the other treatments (HS = 0.059 and TC = 0.059).
AFRIKAANSE OPSOMMING: `n Totaal van 32 beeste was opgedeel in vier groepe van agt elk (A1-8, A9-16, A17-24, B1-B8) wat geslag is op verskillende dae oor n periode van 45 dae. Beeste van die A groep was almal Bonsmara tipe en die van die B groep charolais tipe. Drie behandelings naamlik Tenderstretch (TS), Tendercut (TC) en Hak suspensie (HS) was ewekansig tot die 48 sye van die karkasse van groep A toegedeel. Groep B se 16 sye is net met TC en HS ewekansig tot die linker en regter sy toegedeel. Twee spiere naamlik Gluteus medius en Longissimus dorsi was geevalueer vir drup verlies, kook verlies, sarkomeer lengte en taaihied na 2, 4, 6, 10 en 14 dae se veroudering. Gepaarde t – toetse is gedoen vir elke paar behandelings vir elke dag van veroudering op al die veranderlikes genoem. Die verskil in drup verlies en kook verlies tussen behandelings was as nie betekeinisvol bestempel. Behalwe vir die feit dat drup verlies betekenisvolle verskille getoon het tussen die behandelings TC en TS vir die GM (P = 0.0341) en die LD (P = 0.0348) spiere na 14 dae se veroudering was dit bevind as nie betekenisvol juis oor dat die twee behandelings teenoor hul HS waardes geen verskille getoon het nie. Veroudering van die vleis het wel die grootste betekenisvolle verskil in drupverlies gemaak waar dit amper verdubbel soos die vleis verouder vir 14 dae. Kookverlies het net op dag twee n betekenisvolle verskil getoon in die LD spier vir die HS – TC kombinasie. Die verskil in taaiheid was almal kleiner as 0.3205 kg/ 1.27cm en nie kostant vir alle karkasse nie. n’ Positiewe gemiddelde verbetering in sagtheid is verkry deur die kalkulasie van hoë positiewe waardes en lae negatiewe waardes vir sommmige karkasse wat n laer sagtheid getoon het wanneer TS en TC gebruik is. Hierdie onkonsekwente verbeterings in sagtheid maak dat hierdie behandelings van min praktiese nut vir die bedryf is. Alhoewel hierdie verskille tussen behandelings kleiner raak tydens veroudering, is dit nie konstant nie, wat as gevolg van die variasies tussen diere kan wees. Veroudering het weereens die mees betekenisvolle effek op die vleis getoon (P< 0.001). Die korrelasie tussen sarkomeer lengte en WBSF taaiheid was laag vir alle behandelings in die GM spier (HS = -0.453; TC = -0.401 en TS = -0.2) behalwe vir die LD spier waar die TS behandeling n hoer korrelasie van TS = -0.665 as die ander twee behandelings (HS = 0.059 en TC = 0.059) opgelewer het.
Asmus, Matthew Duane. "Effects of dietary fiber on the growth performance, carcass characteristics, and carcass fat quality in growing-finishing pigs." Thesis, Kansas State University, 2012. http://hdl.handle.net/2097/15103.
Повний текст джерелаDepartment of Animal Science and Industry
Jim L. Nelssen
Three experiments used 777 pigs to study the effects of fiber source; wheat middlings (midds), dried distillers grains with solubles (DDGS), and choice white grease (CWG), and reduction strategies for growing and finishing pigs. Also a fourth study utilizing 1,360 pigs was conducted to determine the effect of immunocastration (IC) and DDGS withdrawal on growth performance, carcass characteristics, fatty acid analysis, and iodine value (IV) of pork fat depots in growing and finishing pigs. Experiment 1 determined that the ingredient source of fiber (wheat middlings or DDGS) was more important than NDF level alone, for characterization of growth, carcass, and yield responses. Experiment 2 showed that a short (23 d) fiber reduction strategy was successful at fully recovering yield loss; however, a longer reduction (47 d) was necessary for further improvements in carcass fat quality (IV). Experiment 3 further proved that yield loss can be recovered with a short fiber reduction strategy (19 d), and that adding energy from CWG during the fiber reduction period can improve feed efficiency, but was unsuccessful at further improving carcass yield or carcass fat quality. Experiment 4 showed that carcass yield was lower for IC pigs than barrows regardless of dietary DDGS or withdrawal strategy. Also pigs fed 30% DDGS throughout had decreased carcass yield; however, withdrawing DDGS from the diet on d 74 was effective at recovering the yield loss. While DDGS withdrawal strategy was successful at lowering IV, but was unsuccessful at fully lowering IV to values of pigs fed the control diet throughout. Iodine values were somewhat variable within fat depot, showing the jowl and clear plate fat were less accurate in showing changes from the diet, most likely due to the fact they are deposited earlier and are slower to turnover. Iodine value tended to be greater for IC pigs than barrows on d 107, but by d 125 there were no differences in IV between IC and barrows. This dramatic improvement from d 107 to 125 could be caused by the dilution of unsaturated fatty acids, specifically C18:2 and C18:3, due to the rapid deposition of fat in IC pigs.
Biffin, Tamara Elaine. "Improved tenderness of alpaca carcasses using combined processing techniques." Thesis, University of Sydney, 2020. https://hdl.handle.net/2123/24418.
Повний текст джерелаColindres, Juan Amilcar. "Beef carcass quality traits of breeds representing diverse biological types." Thesis, National Library of Canada = Bibliothèque nationale du Canada, 1998. http://www.collectionscanada.ca/obj/s4/f2/dsk2/ftp01/MQ27488.pdf.
Повний текст джерелаPerz, Katharine Anna. "Effect of growth path on carcass composition and meat quality." Thesis, Montana State University, 2013. http://etd.lib.montana.edu/etd/2013/perz/PerzK0513.pdf.
Повний текст джерелаau, k. pearce@murdoch edu, and Kelly L. Pearce. "Carcass and eating quality of sheep grazing saltbush based saline pasture systems." Murdoch University, 2006. http://wwwlib.murdoch.edu.au/adt/browse/view/adt-MU20070516.95025.
Повний текст джерелаVan, Heerden Salomina Maria. "The quality of South African lamb : carcass, nutrient and sensory attributes." Thesis, Pretoria : [s.n.], 2007. http://upetd.up.ac.za/thesis/available/etd-01282008-151436.
Повний текст джерелаMarcolla, Camila Schultz. "Chromium yeast improves efficiency and carcass quality of pigs fed ractopamine." Universidade Federal de Viçosa, 2017. http://www.locus.ufv.br/handle/123456789/11077.
Повний текст джерелаMade available in DSpace on 2017-07-06T17:11:50Z (GMT). No. of bitstreams: 1 texto completo.pdf: 792987 bytes, checksum: 4c5f05e20c3196138e943fa5731bcfb7 (MD5) Previous issue date: 2017-03-28
Conselho Nacional de Desenvolvimento Científico e Tecnológico
Este trabalho foi conduzido com o objetivo de avaliar os efeitos da adição de cromo, ácido linoleico conjugado, e ractopamina no desempenho, características de carcaça e qualidade de carne de suínos abatidos aos 115 kg. Foram utilizados 96 suínos machos castrados com peso inicial de 70,21 ± 1,98 kg. Os animais foram distribuídos ao acaso em seis tratamentos. Foram utilizadas oito repetições por tratamento e dois animais por unidade experimental (48 baias, 2 suínos por baia). Os tratamentos consistiram de uma dieta controle (CON) formulada para atender as exigências nutricionais de suínos machos castrados de alto potencial genético. As demais dietas foram formuladas utilizando a dieta CON como base, à qual foram adicionados os aditivos a serem testados, da seguinte maneira: 400 ppb de cromo levedura (CrL); 0,5% de CLA (CLA); 400 ppb CrL e 0,5% CLA (CrL+CLA); 20 ppm de ractopamina (RAC); 400 ppb cromo levedura e 20 ppm de ractopamina (CrL+RAC). Os níveis de lisina nas dietas contendo ractopamina foram aumentados em 20% em relação à dieta CON. Os suínos alimentados com RAC e CrL+RAC receberam a dieta CON durante os primeiros 17 dias de experimento, e passaram a consumir as respectivas dietas nos últimos 28 dias de experimento. As médias entre os tratamentos contendo aditivos foram comparadas usando o teste Tukey. A média de cada tratamento contendo aditivos foi comparada à média da dieta CON utilizando o teste Dunnett. O peso médio inicial foi usado como covariável. Os suínos alimentados com RAC e CrL+RAC apresentaram maior (P < 0,01) peso final e ganho de peso médio diário do que os suínos dos demais tratamentos. A eficiência alimentar foi maior (P < 0,01) nos suínos recebendo CrL+RAC em comparação com os suínos recebendo dieta contendo aditivos, com exceção dos animais alimentados com RAC, que tiveram eficiência alimentar similar aos alimentados com CrL+RAC. Suínos alimentados com RAC e CrL+RAC apresentaram eficiência alimentar semelhantes, ambas superiores (P < 0,01) à eficiência alimentar dos animais alimentados com dieta CON. O consumo de ração foi semelhante (P = 0,89) para todas as dietas. Suínos alimentados com CrL+RAC apresentaram maior área de olho de lombo (AOL) (P < 0,01) e rendimento de carcaça (P < 0,05) do que os animais alimentados com as dietas CON, CrL, CLA e CrL+CLA. Os resultados de AOL e rendimento de carcaça de suínos alimentados com RAC foram similares aos resultados obtidos nos animais alimentados com as demais dietas. Os animais alimentados com CLA, RAC e CrL+RAC apresentaram menor (P = 0,22) espessura de toucinho quando comparados aos animais recebendo dieta CON. Os aditivos não influenciaram o pH (P > 0,05), a temperatura (P > 0,05), as perdas de água (P = 0,87) e a força de cisalhamento (P = 0,70) da carne. Menores valores de L* foram encontrados na carne de suínos alimentados com CrL+CLA em comparação aos suinos alimentados com CON (P < 0,05) e RAC (P < 0,01). Suínos alimentados com RAC apresentaram menores (P < 0,05) valores de a* em comparação aos suinos alimentados com CON. Os valores de b* foram semelhantes (P = 0,20) para todas as dietas. Não houve diferença significativa (P = 0,89) na concentração de gordura intramuscular. Não foram observadas diferenças nas concentrações séricas de glicose (P = 0,32), colesterol (P = 0,67) e triglicerídeos (P = 0,46). A concentração sérica de ureia foi menor (P = 0,03) nos suinos alimentados com CrL+RAC em comparação aos suinos alimentados com CON e RAC. A suplementação combinada de cromo e ractopamina aumenta a AOL e o rendimento de carcaça de suínos em terminação, sugerindo a existência de um sinergismo que pode estar relacionado a capacidade de cromo de aumentar a utilização de nutrientes em suinos suplementados com ractopamina. Os aditivos suplementados não apresentam efeitos importantes sobre a qualidade de carne.
This study aimed to evaluate the effects of dietary chromium, CLA, and ractopamine on performance and pork quality of finishing pigs slaughtered at 115 kg BW. Ninety-six crossbred barrows (initial BW= 70.21 ± 1.98 kg) were randomly assigned to 1 of 6 dietary treatments. A diet formulated according to the nutritional requirements of 70- to 100-kg barrows of high lean genotype gaining l.l3 kg/day was used as the control (CON). The other five diets were based on the CON and supplemented as follows: 400 ppb Cr yeast (CrY); 0.5% CLA (CLA); 400 ppb CrY and 0.5% CLA (CrY+CLA); 20 ppm RAC (RAC); 400 ppb CrY and 20 ppm RAC (CrY+RAC). Lysine levels on diets containing RAC were raised by 20% compared to CON. Pigs fed RAC and CrY+RAC were fed CON for the first 17 d, and then the respective diets for the last 28 d on trial. There were 8 replicates per treatment (48 pens; 2 pigs per pen). Means were compared using Tukey test, excluding the CON. Dunnett test was used to compare the means of each diet containing additives to the CON. Initial BW was used as covariate. Pigs fed RAC and CrY+RAC had the highest (P < 001) final BW and ADG. Pigs fed CrY+RAC had higher (P < 001) G:F than pigs fed diets containing additives, except for the RAC. Pigs fed CrY+RAC and RAC had similar G:F, both higher (P < 001) than pigs fed CON. Feed intake was similar (P = 0.89) for all diets. Pigs fed CrY+RAC had higher LM area (P 005) and carcass yield (P < 001) than pigs fed CON, CrY, CLA, and CrY+CLA. Loin muscle area and carcass yield of pigs fed RAC were not statistically different from pigs fed the others diets tested. Back fat depth was lower (P = 022) in pigs fed CLA, RAC and CrY+RAC compared to pigs fed CON. The additives did not affect pork pH (P > 005), temperature (P > 005), water losses (P = 0.87), and shear force (P = 0.70). Lower L* values were found on pork from pigs fed CrY+CLA compared to pigs fed CON (P < 005), and RAC (P < 0.01). Pigs fed the RAC had lower (P 005) a* values compared to pigs fed CON. Pork b* values were similar (P = 0.20) for all diets. There were no significant differences (P = 089) on intramuscular fat content. Serum urea nitrogen (SUN) concentration was lower (P = 003) in pigs fed CrY+RAC than in pigs fed CON and RAC. In summary, when combined, CrY and RAC increase LM area and carcass yield and reduce SUN, suggesting a synergism that might be related to the ability of Chromium to improve nutrient utilization in RAC-fed pigs. Additionally, CrY, CLA and RAC have no major effects on pork quality.
Arduini, Agnese <1985>. "Risk Factors affecting carcass and pork quality in pre-slaughter period." Doctoral thesis, Alma Mater Studiorum - Università di Bologna, 2016. http://amsdottorato.unibo.it/7565/1/TESI_DOTTORATO_AGNESE_ARDUINI_DEFINITIVA.pdf.
Повний текст джерелаArduini, Agnese <1985>. "Risk Factors affecting carcass and pork quality in pre-slaughter period." Doctoral thesis, Alma Mater Studiorum - Università di Bologna, 2016. http://amsdottorato.unibo.it/7565/.
Повний текст джерелаRibeca, Cinzia. "Association between multiple candidate genes and carcass and beef quality in Pemontese cattle." Doctoral thesis, Università degli studi di Padova, 2011. http://hdl.handle.net/11577/3422007.
Повний текст джерелаIl consumatore sta diventando sempre più consapevole della qualità dei prodotti alimentari ed è disposto a pagare di più prodotti di qualità superiore. Per far fronte alle nuove e diversificate richieste dei consumatori, è necessario migliorare la produzione animale prestando particolare attenzione alla sicurezza e alla qualità. La qualità della carne è un concetto complesso che include composizione e conformazione della carcassa, assenza di rischi microbiologici, benessere animale e impatto ambientale. I caratteri che influenzano la qualità delle carni bovine hanno ereditabilità medio/bassa e inoltre misurarli è spesso difficile e costoso. Lo sviluppo delle tecnologie basate sul DNA, applicate agli animali da reddito, rappresenta un promettente strumento adatto a risolvere tali problemi. Molti marcatori presenti su geni candidati per la qualità della carne sono stati identificati e inclusi in test disponibili in commercio. Tuttavia prima di utilizzare questi test in programmi di miglioramento genetico è importante valutare se e quali effetti questi geni hanno nella popolazione in cui si vogliono utilizzare. Gli obiettivi di questa tesi sono stati: analizzare un gruppo di polimorfismi di geni candidati, al fine di fornire informazioni sulle loro frequenze alleliche nella popolazione Piemontese e valutarne l’associazione con i caratteri per la qualità della carcassa e della carne. Una pre-analisi è stata eseguita per individuare la variabilità di venti polimorfismi a singolo nucleotide (SNP) situati su quindici geni candidati per la qualità della carne. I campioni di Longissimus thoracis sono stati prelevati da 1.208 vitelloni Piemontesi, generati da 109 tori del centro d’inseminazione artificiale. Su tali campioni erano disponibili i dati fenotipici per la conformazione della carcassa e per la qualità della carne: peso della carcassa (CW), forza di taglio (SF) perdite di cottura (CL), e pH (pH24). Per ogni carattere, quarantotto campioni sono stati scelti da ciascuna delle due code della distribuzione normale del carattere stesso. Uno o più polimorfismi a singolo nucleotide (SNP) sono stati determinati nei seguenti geni candidati: calpastatina (CAST), calpaina 1 (CAPN1), B e D catepsina (CTSB, CTSD), ormone della crescita (GH), recettore dell’ormone della crescita (GHR), pro-opiomelanocortina (POMC), POU classe 1 homeobox 1 (POU1F1), recettore della melanocortina-4 (MC4R), ormone corticotropina rilasciante (CRH), proteina legante il fattore di crescita insulino-simile 3 (IGFBP3), diacilglicerolo aciltransferasi 1 (DGAT1), tireoglobulina (TG), carbossipeptidasi E (CPE) e subunità -γβdella proteina chinasi AMP-attivata (PRKAG3). Venti SNPs sono stati sottoposti a genotipizzazione mediante tecniche basate sulla reazione a catena sella polimerasi (PCR). Le frequenze alleliche, il test di equilibrio di Hardy-Weinberg (HW), così come la differenziazione genica per le popolazioni campionate (ovvero, due sub-popolazioni una per ciascuna coda della distribuzione del carattere) sono stati ottenuti utilizzando il software Genepop la versione 4.0. Un totale di sei SNPs ha presentato alleli minori con frequenza inferiore al 10%. I campioni presi delle code delle distribuzioni di ogni carattere sono stati trattati come popolazioni diverse al fine di rilevare eventuali differenze tra le frequenze alleliche. Solo il locus MC4R ha mostrato una differenza statisticamente significativa nella distribuzione allelica tra le due popolazione per il CW. I loci variabili ottenuti da questa prima analisi saranno analizzati su tutto il campione (capitolo 3). E’ stato dimostrato che sia il sistema calpaina/calpastatina (μ-calpaina, m-calpaina e calpastatina) sia un enzima lisosomiale (catepsina) influenzano alcuni caratteri legati alla qualità della carne. In questo studio cinque SNP, testati in precedenza: CAPN530 (AF_288054.2: g.4558G> A), CAPN4751 (AF_288054.2: g.6545C T>), CAST2959 (AF_159246.1: g.2959A> G), CAST2870 (AF_159246.1: g.2870A> G), CAST282 (AY_008267: g.282G> C) e CTSD (AB_055312: g.77G> A) sono stati genotipizzati su 990 vitelloni Piemontesi. Un animal model implementato con metodi Bayesiani è stato utilizzato per valutare gli effetti dei genotipi sulle variazione di pH24, di luminosità (L *), del rosso (a *), del giallo (b *), delle perdite di cottura (CL), delle perdite di gocciolamento (DL) e della forza di taglio (SF). L'associazione con la DL è stata osservata solo per CAST282 allele G e CAPN530 allele A. L’allele A di CAPN530 ha presentato associazione anche con a * e b * e l’allele A di CAST2959 con a*. Si potrebbe ipotizzare che l'effetto ottenuto, in questo studio, sul DL sia dovuto ad una variazione nella degradazione delle proteine miofibrillari che determina l'attivazione/disattivazione dei canali causando così la perdita d’acqua (capitolo 4). Gli ultimi dieci polimorfismi, risultati variabili nelle pre-analisi, sono: GH1547 (M57764: g.1547TC> G), GHR257 (AF_140284: g.257A> G), POMC254 (J00021: g.254C T>), POU1F1 208 (EF090615: g 0,208 A> G), MC4R1069 (AF_265221: g.1069C> G), CRH240 (AF_340152: g.240G> C), DGAT10343 (AJ_318490: g.10343GC> AA), TG1696 (M35823: g.1696C T>), CPE601 (AY_970663: g.601C T>), e PRKAG3 1609 (AY_692035: g.1609G> A). Tutti questi SNP sono stati genotipizzati per calcolarne le frequenze alleliche e per testare la loro associazione con CW, PH24h, L *, a *, b *, CL, DL, e SF. Tutti gli SNPs sono risultati informativi nella popolazione Piemontese, tranne CPE601. L’Analisi statistica ha dimostrato che otto dei dieci SNPs indagati avevano effetto additivo con almeno un carattere relativo alla qualità della carcassa e delle carni bovine. Alcune di queste associazioni sono presentate per la prima volta, mentre altre hanno confermato studi già effettuati (capitolo 5).
Pearce, Kelly Lynne. "Carcass and eating quality of sheep grazing saltbush based saline pasture systems /." Access via Murdoch University Digital Theses Project, 2006. http://wwwlib.murdoch.edu.au/adt/browse/view/adt-MU20070516.95025.
Повний текст джерелаPrescott, N. J. "The effects of dietary linoleic acid on carcass fat quality in pigs." Thesis, University of Bristol, 1987. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.379627.
Повний текст джерелаPearce, Kelly L. "Carcass and eating quality of sheep grazing saltbush based saline pasture systems." Thesis, Pearce, Kelly L. (2006) Carcass and eating quality of sheep grazing saltbush based saline pasture systems. PhD thesis, Murdoch University, 2006. https://researchrepository.murdoch.edu.au/id/eprint/252/.
Повний текст джерелаPearce, Kelly L. "Carcass and eating quality of sheep grazing saltbush based saline pasture systems." Pearce, Kelly L. (2006) Carcass and eating quality of sheep grazing saltbush based saline pasture systems. PhD thesis, Murdoch University, 2006. http://researchrepository.murdoch.edu.au/252/.
Повний текст джерелаCotta, Tadeu. "Qualité des carcasses de poulets aspects zootechniques, technologiques, microbiologiques et sensoriels." Grenoble 2 : ANRT, 1986. http://catalogue.bnf.fr/ark:/12148/cb37596838d.
Повний текст джерелаLee, Chung-yung Jetty, and 李忠英. "The quality of pig meat in relation to sex and slaughtering age." Thesis, The University of Hong Kong (Pokfulam, Hong Kong), 1995. http://hub.hku.hk/bib/B31213297.
Повний текст джерелаVan, Schalkwyk Sunet. "Meat quality characteristics of three South African game species : black wildebeest (Connochaetes gnou), blue wildebeest (Connochaetes taurinus) and mountain reedbuck (Redunca fulvorufula)." Thesis, Stellenbosch : Stellenbosch University, 2004. http://hdl.handle.net/10019.1/50014.
Повний текст джерелаBautista, Derrick A. "The determination and control of the microbiological quality and safety of poultry carcasses." Thesis, National Library of Canada = Bibliothèque nationale du Canada, 1998. http://www.collectionscanada.ca/obj/s4/f2/dsk2/ftp03/NQ27444.pdf.
Повний текст джерелаMurray, Kathryn Audrey. "The microbiological quality of chilled beef carcasses in Northern Ireland : a baseline study." Thesis, Queen's University Belfast, 1998. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.287366.
Повний текст джерелаRaffy, Guillaume. "Vision numerique couleur appliquee a l'evaluation de la qualite de carcasses de dinde." Clermont-Ferrand 2, 1999. http://www.theses.fr/1999CLF21127.
Повний текст джерелаWard, Lindsay Paige. "Slip point of subcutaneous adipose tissue as an indicator of beef carcass quality." [College Station, Tex. : Texas A&M University, 2008. http://hdl.handle.net/1969.1/ETD-TAMU-2644.
Повний текст джерелаGroße-Brinkhaus, Christine [Verfasser]. "Epistatic effects on carcass composition and meat quality in pigs / Christine Große-Brinkhaus." Bonn : Universitäts- und Landesbibliothek Bonn, 2012. http://d-nb.info/1043055428/34.
Повний текст джерелаBarber, Sarah Ann. "Growth, carcass composition and meat quality of Angora goats reared for fibre production." Thesis, University of Plymouth, 1995. http://hdl.handle.net/10026.1/2704.
Повний текст джерелаAgunbiade, Jubril Adeniyi. "Nutritive value of oilseeds and their influence on carcass quality in non-ruminants." Thesis, University of Nottingham, 1992. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.303252.
Повний текст джерелаNewsom, Cora Jane. "Relationship between castration and morbidity and their effects on performance and carcass quality." Thesis, Manhattan, Kan. : Kansas State University, 2009. http://hdl.handle.net/2097/2309.
Повний текст джерелаMirzaei, Hamid Reza. "Using variation in cattle growth to develop a predictive model of carcass quality /." Title page, table of contents and abstract only, 2004. http://web4.library.adelaide.edu.au/theses/09PH/09phm677.pdf.
Повний текст джерелаGandolfi, Greta <1983>. "Candidate genes affecting fat deposition, carcass composition and meat quality traits in pigs." Doctoral thesis, Alma Mater Studiorum - Università di Bologna, 2011. http://amsdottorato.unibo.it/3528/1/Gandolfi_Greta_Tesi.pdf.
Повний текст джерелаGandolfi, Greta <1983>. "Candidate genes affecting fat deposition, carcass composition and meat quality traits in pigs." Doctoral thesis, Alma Mater Studiorum - Università di Bologna, 2011. http://amsdottorato.unibo.it/3528/.
Повний текст джерелаKritzinger, Brian. "Meat quality parameters of the impala (Aepyceros melampus)." Thesis, Stellenbosch : Stellenbosch University, 2002. http://hdl.handle.net/10019.1/52931.
Повний текст джерелаENGLISH ABSTRACT: The purpose of this study was to evaluate the effects of age, sex, region and cropping methodology on the meat quality of impala. Forty impala were cropped during separate day and night operations at the Mara Agricultural Development Centre. Carcass pH45 (measured in M. longissimus dorsi 45 minutes post mortem) was higher in night cropped animals (6.67 ± 0.111; P<0.05) compared to the day cropped animals (6.55 ± 0.236). The ultimate carcass pH (pHu) of animals cropped at night was lower (5.39 ± 0.081; P<0.05) compared to those cropped in the day (5.45 ± 0.108). Non-linear regression analysis showed that the rate of pH decline of the night cropped animals was slower than that of the day cropped animals (P<0.05). The cooling rate of the M. longissimus dorsi was twice as fast in the night cropped group (P<0.05). Shear force values and drip losses of the night cropped animals were both lower (19.11 ± 5.675 g/mm2 and 2.93 ± 1.597% respectively; PO.OS) compared to those of day cropped animals (23.42 ± 8.128 g/mm2 and 4.15 ± 2.339%). The results indicate that nighttime cropping has a beneficial effect on certain meat quality parameters compared to daytime cropping. A second group of impala was sampled at the Musina Experimental Farm in the Limpopo Province of South Africa. Live weights of the Mara animals (50.23 ± 9.32 kg) were higher (P<0.05) than the Musina animals (44.25 ± 10.81 kg). Impala sampled at Mara had significantly higher dressing percentages than those at Musina (P<0.05). Impala ewes from both regions had a higher lipid content (P<0.05), but the sex of the animal had no effect on the remaining chemical parameters. The crude protein content of impala at Musina (24.88 ± 1.044%) was higher (P<0.05) than the Mara animals (23.80 ± 0.840%). Regional differences (P<0.05) were found in the amounts of phosphorous and calcium in the meat. Female animals at Mara showed higher proportions (P<0.05) of saturated (SFA), and mono-unsaturated fatty acids than the male animals. Males from both regions showed higher proportions (P<0.05) of poly-unsaturated fatty acids. Myristic, palmitic and stearic acid formed the greatest proportion of the SFA component for males and females from both regions. Samples of the M. semi-membranosus (SM), M. deltoideus (D), M. longissimus dorsi et laborum (LO), and M. psoas major (PS) were analysed for citrate synthase (CS) and phosphofructo-kinase activities. MHC distribution varied significantly between 0, SM and LD (P
Gowanlock, Daniel W. "Effect of Reducing Micromineral Supplementation to Grower-Finisher Pigs on Growth Performance, Hematological Status, Carcass traits and Pork Quality." The Ohio State University, 2012. http://rave.ohiolink.edu/etdc/view?acc_num=osu1345493232.
Повний текст джерелаKarama, Musafiri. "The microbial quality of ostrich carcases produced in a export-approved South African abattoir." Diss., University of Pretoria, 2001. http://hdl.handle.net/2263/23373.
Повний текст джерелаDissertation (MMedVet (Hyg))--University of Pretoria, 2001.
Paraclinical Sciences
unrestricted
Karama, Musafiri. "The microbial quality of ostrich carcases produced at an export-approved South African abattoir." Electronic thesis, 2001. http://upetd.up.ac.za/thesis/available/etd-03232005-134430/.
Повний текст джерелаMustafa, Muhammad Iqbal. "The influence of breed and nutrition on lamb growth, carcass composition and meat quality." Thesis, University of Newcastle Upon Tyne, 1996. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.318164.
Повний текст джерелаSmit, Karen. "Meat quality characteristics of blesbok (Damaliscus dorcas phillipsi) and red hartebeest (Alcelaphus buselaphus caama) meat." Thesis, Stellenbosch : Stellenbosch University, 2004. http://hdl.handle.net/10019.1/50013.
Повний текст джерелаHeyer, Anke. "Performance, carcass and meat quality in pigs : influence of rearing system, breed and feeding /." Uppsala : Dept. of Food Science, Swedish Univ. of Agricultural Sciences, 2004. http://epsilon.slu.se/a487.pdf.
Повний текст джерелаPASCUAL, AMORÓS MARÍA DE LOS DESAMPARADO. "Effect of selection for growth rate on carcass composition and meat quality in rabbits." Doctoral thesis, Universitat Politècnica de València, 2008. http://hdl.handle.net/10251/1938.
Повний текст джерелаPascual Amorós, MDLD. (2007). Effect of selection for growth rate on carcass composition and meat quality in rabbits [Tesis doctoral no publicada]. Universitat Politècnica de València. https://doi.org/10.4995/Thesis/10251/1938
Palancia
Matijošaitytė, Gintarė. "Lietuvoje skerdžiamų kiaulių kai kurių skerdenų kokybės rodiklių palyginamasis įvertinimas." Master's thesis, Lithuanian Academic Libraries Network (LABT), 2007. http://vddb.library.lt/obj/LT-eLABa-0001:E.02~2007~D_20070419_132900-26191.
Повний текст джерелаde, Vasconcelos Judson Tadeu. "The use of different nutritional strategies and mathematical models to improve production efficiency, profitability, and carcass quality of feedlot cattle." Texas A&M University, 2006. http://hdl.handle.net/1969.1/4690.
Повний текст джерела