Data/hora: 16/06/2024 09:39:36

Provedor de dados: | 2
País: | Brazil
Título: | Carcass characteristics of feedlot-finished Nellore heifers slaughtered at different weights
Autores: | Rezende, Pedro Leonardo de Paula; Restle, João; Bilego, Ubirajara Oliveira; Fernandes, Juliano José de Resende; Missio, Regis Luis; Guimarães, Tiago Pereira.
Data: | 2019-04-08
Ano: | 2019
Palavras-chave: | 5.04.00.00-2 beef cattle; Carcass yield; Conformation; Marbling; Slaughter weight.
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 &lt;340, 340-370, 370-400, or &gt;400 kg. Back fat thickness was not influenced (p &gt; 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 &lt; 0.05) with the increase in slaughter weight. Animals slaughtered at a live weight (LW) of more than 400 kg showed better (p &lt; 0.05) carcass conformation than the other experimental groups (9.8 points). Heifers slaughtered at over 400 kg LW had a more compact (p &lt; 0.05) carcass (1.65 cm kg-1 cold carcass). The marbling degree of meat was lower (p &lt; 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.
Tipo: | Info:eu-repo/semantics/article
Idioma: | Inglês

Identificador:

http://periodicos.uem.br/ojs/index.php/ActaSciAnimSci/article/view/44826

10.4025/actascianimsci.v41i1.44826

Editor: | Editora da Universidade Estadual de Maringá

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

Formato: | application/pdf

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

Fonte:

Direitos autorais 2019 Acta Scientiarum. Animal Sciences

http://creativecommons.org/licenses/by/4.0