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Características do lombo e cortes da carcaça de cordeiros Suffolk terminados em pasto e confinamento

Authors: Fernandes, Maria Angela Machado; Monteiro, Alda Lúcia Gomes; Poli, Cesar Henrique Espirito Candal; Barros, Carina Simionato de; Prado, Odilei Rogerio; Natel, Andressa Santanna;

Características do lombo e cortes da carcaça de cordeiros Suffolk terminados em pasto e confinamento

Abstract

O trabalho avaliou as medidas objetivas do lombo e os pesos e rendimentos dos cortes da carcaça de cordeiros Suffolk terminados em quatro sistemas: (1) cordeiros desmamados aos 60 dias de idade e terminados em pasto; (2) cordeiros mantidos com suas mães terminados no mesmo pasto; (3) cordeiros mantidos com suas mães terminados no mesmo pasto recebendo suplementação em creep feeding (1% PV); (4) cordeiros desmamados aos 60 dias e confinados. Os cordeiros foram abatidos quando a média de peso vivo no tratamento atingiu 32-34kg. Após o resfriamento, as carcaças foram divididas longitudinalmente, sendo as meias-carcaças seccionadas em sete regiões: lombo, paleta, perna, costela verdadeira, costela falsa, pescoço e baixos. Sobre o lombo esquerdo tomaram-se as medidas de comprimento e profundidade máxima do músculo e espessura mínima e máxima de gordura. Foi medida a área de olho de lombo e a força de cisalhamento (maciez). Não houve efeito (P>0,05) do sistema de terminação sobre o peso e o rendimento dos principais cortes da carcaça. Cordeiros desmamados e confinados apresentaram (P<0,05) espessura mínima (2,07mm) e máxima (3,60mm) de gordura de cobertura no lombo maior que de cordeiros terminados em pasto de Tifton-85, com ou sem desmame. Cordeiros desmamados e terminados em pasto apresentaram maior (P<0,05) força de cisalhamento (3,29kgf cm-1) indicando menor maciez da carne. Os sistemas de terminação em confinamento ou em pasto, com ou sem desmame, não apresentaram efeitos sobre o desenvolvimento muscular, porém influenciaram na deposição de gordura e maciez da carne de cordeiros.

Keywords

confinamento, maciez, desmame, gordura de cobertura, Produção animal, SF1-1100, creep feeding, Animal culture

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selected citations
These citations are derived from selected sources.
This is an alternative to the "Influence" indicator, which also reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
BIP!Citations provided by BIP!
popularity
This indicator reflects the "current" impact/attention (the "hype") of an article in the research community at large, based on the underlying citation network.
BIP!Popularity provided by BIP!
influence
This indicator reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
BIP!Influence provided by BIP!
impulse
This indicator reflects the initial momentum of an article directly after its publication, based on the underlying citation network.
BIP!Impulse provided by BIP!
0
Average
Average
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