| Registro completo |
| Provedor de dados: |
Animal Sciences
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| País: |
Brazil
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| Título: |
Carcass characteristics of feedlot-finished Nellore heifers slaughtered at different weights
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| Autores: |
Rezende, Pedro Leonardo de Paula
Restle, João
Bilego, Ubirajara Oliveira
Fernandes, Juliano José de Resende
Missio, Regis Luis
Guimarães, Tiago Pereira
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| Data: |
2019-04-08
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| Ano: |
2019
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| Palavras-chave: |
5.04.00.00-2 beef cattle
Carcass yield
Conformation
Marbling
Slaughter weight
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| Resumo: |
Carcass and meat characteristics of 48 Nellore heifers at 24 to 30 months of age, with an initial weight of 263.4 ± 13.9 kg, were evaluated. The experiment was set up as a completely randomized design with four treatments, which consisted of four slaughter-weight classes, namely <340, 340-370, 370-400, or >400 kg. Back fat thickness was not influenced (p > 0.05) by slaughter weight in any of the forms it was expressed (mm or %), averaging 5.3 mm. Loin eye area in cm2 increased (p < 0.05) with the increase in slaughter weight. Animals slaughtered at a live weight (LW) of more than 400 kg showed better (p < 0.05) carcass conformation than the other experimental groups (9.8 points). Heifers slaughtered at over 400 kg LW had a more compact (p < 0.05) carcass (1.65 cm kg-1 cold carcass). The marbling degree of meat was lower (p < 0.05) in the animals slaughtered at less than 340 kg LW. In conclusion, cull heifers must not be slaughtered at a LW of less than 340 kg and slaughter weights greater than 400 kg have positive implications on important carcass characteristics, notably conformation and marbling.
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| Tipo: |
Info:eu-repo/semantics/article
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| Idioma: |
Inglês
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| Identificador: |
http://periodicos.uem.br/ojs/index.php/ActaSciAnimSci/article/view/44826
10.4025/actascianimsci.v41i1.44826
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| Editor: |
Editora da Universidade Estadual de Maringá
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| Relação: |
http://periodicos.uem.br/ojs/index.php/ActaSciAnimSci/article/view/44826/pdf
http://periodicos.uem.br/ojs/index.php/ActaSciAnimSci/article/downloadSuppFile/44826/20380
http://periodicos.uem.br/ojs/index.php/ActaSciAnimSci/article/downloadSuppFile/44826/20381
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| Formato: |
application/pdf
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| Fonte: |
Acta Scientiarum. Animal Sciences; v. 41 (2019): Publicação Contínua; e44826
Acta Scientiarum. Animal Sciences; v. 41 (2019): Publicação Contínua; e44826
1807-8672
1806-2636
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| Direitos: |
Direitos autorais 2019 Acta Scientiarum. Animal Sciences
http://creativecommons.org/licenses/by/4.0
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