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Registro Completo |
Biblioteca(s): |
Embrapa Pecuária Sul. |
Data corrente: |
08/01/2019 |
Data da última atualização: |
08/01/2019 |
Tipo da produção científica: |
Artigo em Periódico Indexado |
Autoria: |
MENDONÇA, F. S.; VAZ, R. Z.; CARDOSO, F. F.; RESTLE, J.; VAZ, F. N.; PASCOAL, L. L.; REIMANN, F. A.; BOLIGON, A. A. |
Afiliação: |
F. S. Mendonça, UFPEL; R. Z. Vaz, UFPEL; FERNANDO FLORES CARDOSO, CPPSUL; J. Restle, UFG; F. N. Vaz, UFSM; L. L. Pascoal, UFSM; F. A. Reimann, UFPEL; A. A. Boligon, UFPEL. |
Título: |
Pre-slaughtering factors related to bruises on cattle carcasses. |
Ano de publicação: |
2018 |
Fonte/Imprenta: |
Animal Production Science, v. 58, n. 2, p. 385-392, 2018. |
Idioma: |
Inglês |
Conteúdo: |
The objective of the study was to determine the factors related to beef cattle carcass bruises. Handling, transportation and unloading data from cattle purchased by a slaughterhouse in southern Brazil were obtained to assess their associations with carcass bruising (occurrence or not) and the number of bruises per load. In total, 4338 carcasses from 142 loads of cattle purchased by the company were assessed. The females were cull cows and the males were steers. Independent variables studied included sex (females or males), loading facilities (good, regular or poor), cattle handling (good, regular or poor), transport time from the farm to the slaughterhouse (hours), hauling-truck types, truck animal-load density (kg/m2) and slaughterhouse unloading time (min). For both traits studied (carcasses bruised and number of bruises per load), all of the independent variables showed a significant (P < 0.05) effect. Animal sex is the most important factor on carcass bruising and the number of bruises per load, with females showing 91% more bruises than males. Moderate load densities caused greater bruising than did low (<370 kg/m2) and high (>431 kg/m2) densities. In general, greater bruising was caused by longer transport and unloading times. Bruises were reduced by improving loading facilities from regular to good. Transportation in vehicles with higher load capacities (animal numbers) resulted in greater bruising. Therefore, special handling practices and personnel training measures should be undertaken to mitigate losses pre-slaughter, especially when handling female cattle, which are more vulnerable to developing carcass bruises, possibly due to higher cow reactivity. MenosThe objective of the study was to determine the factors related to beef cattle carcass bruises. Handling, transportation and unloading data from cattle purchased by a slaughterhouse in southern Brazil were obtained to assess their associations with carcass bruising (occurrence or not) and the number of bruises per load. In total, 4338 carcasses from 142 loads of cattle purchased by the company were assessed. The females were cull cows and the males were steers. Independent variables studied included sex (females or males), loading facilities (good, regular or poor), cattle handling (good, regular or poor), transport time from the farm to the slaughterhouse (hours), hauling-truck types, truck animal-load density (kg/m2) and slaughterhouse unloading time (min). For both traits studied (carcasses bruised and number of bruises per load), all of the independent variables showed a significant (P < 0.05) effect. Animal sex is the most important factor on carcass bruising and the number of bruises per load, with females showing 91% more bruises than males. Moderate load densities caused greater bruising than did low (<370 kg/m2) and high (>431 kg/m2) densities. In general, greater bruising was caused by longer transport and unloading times. Bruises were reduced by improving loading facilities from regular to good. Transportation in vehicles with higher load capacities (animal numbers) resulted in greater bruising. Therefore, special handling practices and personnel training measures... Mostrar Tudo |
Thesagro: |
Abate; Abatedouro; Bem-Estar; Transporte. |
Categoria do assunto: |
-- |
Marc: |
LEADER 02374naa a2200253 a 4500 001 2103293 005 2019-01-08 008 2018 bl uuuu u00u1 u #d 100 1 $aMENDONÇA, F. S. 245 $aPre-slaughtering factors related to bruises on cattle carcasses.$h[electronic resource] 260 $c2018 520 $aThe objective of the study was to determine the factors related to beef cattle carcass bruises. Handling, transportation and unloading data from cattle purchased by a slaughterhouse in southern Brazil were obtained to assess their associations with carcass bruising (occurrence or not) and the number of bruises per load. In total, 4338 carcasses from 142 loads of cattle purchased by the company were assessed. The females were cull cows and the males were steers. Independent variables studied included sex (females or males), loading facilities (good, regular or poor), cattle handling (good, regular or poor), transport time from the farm to the slaughterhouse (hours), hauling-truck types, truck animal-load density (kg/m2) and slaughterhouse unloading time (min). For both traits studied (carcasses bruised and number of bruises per load), all of the independent variables showed a significant (P < 0.05) effect. Animal sex is the most important factor on carcass bruising and the number of bruises per load, with females showing 91% more bruises than males. Moderate load densities caused greater bruising than did low (<370 kg/m2) and high (>431 kg/m2) densities. In general, greater bruising was caused by longer transport and unloading times. Bruises were reduced by improving loading facilities from regular to good. Transportation in vehicles with higher load capacities (animal numbers) resulted in greater bruising. Therefore, special handling practices and personnel training measures should be undertaken to mitigate losses pre-slaughter, especially when handling female cattle, which are more vulnerable to developing carcass bruises, possibly due to higher cow reactivity. 650 $aAbate 650 $aAbatedouro 650 $aBem-Estar 650 $aTransporte 700 1 $aVAZ, R. Z. 700 1 $aCARDOSO, F. F. 700 1 $aRESTLE, J. 700 1 $aVAZ, F. N. 700 1 $aPASCOAL, L. L. 700 1 $aREIMANN, F. A. 700 1 $aBOLIGON, A. A. 773 $tAnimal Production Science$gv. 58, n. 2, p. 385-392, 2018.
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Registro original: |
Embrapa Pecuária Sul (CPPSUL) |
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Biblioteca(s): |
Embrapa Café. |
Data corrente: |
14/03/2016 |
Data da última atualização: |
22/03/2016 |
Tipo da produção científica: |
Artigo em Periódico Indexado |
Circulação/Nível: |
A - 1 |
Autoria: |
FERRÃO, L. F. V.; CAIXETA, E. T.; PENA, G.; ZAMBOLIM, E. M.; CRUZ, C. D.; ZAMBOLIM, L.; FERRAO, M. A. G.; SAKIYAMA, N. S. |
Afiliação: |
LUÍS FELIPE V. FERRÃO, UFV; EVELINE TEIXEIRA CAIXETA, SAPC; GUILHERME PENA, UFV; EUNICE M. ZAMBOLIM, UFV; COMES D. CRUZ, UFV; LAÉRCIO ZAMBOLIM, UFV; MARIA AMELIA GAVA FERRAO, SAPC; NEY S. SAKIYAMA, UFV. |
Título: |
New EST-SSR markers of Coffea arabica: transferability and application to studies of molecular characterization and genetic mapping. |
Ano de publicação: |
2015 |
Fonte/Imprenta: |
Molecular Breeding, v. 35, n. 1, p. 2-5, jan. 2015. |
Idioma: |
Inglês |
Conteúdo: |
Microsatellite markers (SSR) have broad utility in genetic studies due to a high rate of polymor-phisms, a codominant nature and multiallelism. EST?SSRs are markers derived from the expressed sequences of a genome and represent transcribed genes. Despite the importance of the genus Coffea , only a small number of EST?SSR markers are currently available. Thus, this study was designed to mine and develop a new set of EST?SSR markers from the Brazilian Coffee Genome Project. We investigated 130,792 expressed sequence tags (ESTs), from which 24,031 DNA sequences with microsatellites were identified. After stability and amplification testing, 101 new EST?SSR markers were developed and analyzed in different coffee species. The average rate of transferability was 88 %, showing that these markers are useful in genetic studies across the genus Coffea. Polymorphism levels and the degree of diversity were consistent with the evolutionary history of the species. All coffee genotypes were discriminated, even the C. arabica genotypes that have known narrow genetic basis. It was also possible to locate 14 EST? SSRs into different linkage groups of the C. arabica genetic map, which demonstrate that these markers can be useful in QTL mapping studies and in molecular-assisted selection. |
Palavras-Chave: |
Brazilian Coffee Genome Project; Microsatellites. |
Thesagro: |
Coffea Arábica. |
Thesaurus NAL: |
Coffea; Genetic markers. |
Categoria do assunto: |
-- |
URL: |
https://ainfo.cnptia.embrapa.br/digital/bitstream/item/141110/1/New-EST-SSR-markers.pdf
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Marc: |
LEADER 02100naa a2200265 a 4500 001 2040767 005 2016-03-22 008 2015 bl uuuu u00u1 u #d 100 1 $aFERRÃO, L. F. V. 245 $aNew EST-SSR markers of Coffea arabica$btransferability and application to studies of molecular characterization and genetic mapping.$h[electronic resource] 260 $c2015 520 $aMicrosatellite markers (SSR) have broad utility in genetic studies due to a high rate of polymor-phisms, a codominant nature and multiallelism. EST?SSRs are markers derived from the expressed sequences of a genome and represent transcribed genes. Despite the importance of the genus Coffea , only a small number of EST?SSR markers are currently available. Thus, this study was designed to mine and develop a new set of EST?SSR markers from the Brazilian Coffee Genome Project. We investigated 130,792 expressed sequence tags (ESTs), from which 24,031 DNA sequences with microsatellites were identified. After stability and amplification testing, 101 new EST?SSR markers were developed and analyzed in different coffee species. The average rate of transferability was 88 %, showing that these markers are useful in genetic studies across the genus Coffea. Polymorphism levels and the degree of diversity were consistent with the evolutionary history of the species. All coffee genotypes were discriminated, even the C. arabica genotypes that have known narrow genetic basis. It was also possible to locate 14 EST? SSRs into different linkage groups of the C. arabica genetic map, which demonstrate that these markers can be useful in QTL mapping studies and in molecular-assisted selection. 650 $aCoffea 650 $aGenetic markers 650 $aCoffea Arábica 653 $aBrazilian Coffee Genome Project 653 $aMicrosatellites 700 1 $aCAIXETA, E. T. 700 1 $aPENA, G. 700 1 $aZAMBOLIM, E. M. 700 1 $aCRUZ, C. D. 700 1 $aZAMBOLIM, L. 700 1 $aFERRAO, M. A. G. 700 1 $aSAKIYAMA, N. S. 773 $tMolecular Breeding$gv. 35, n. 1, p. 2-5, jan. 2015.
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