Características da carcaça e dos não-componentes da carcaça de ovelhas de descarte abatidas em diferentes estágios fisiológicos
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Data
2009-07-01
Autores
Pinheiro, Rafael Silvio Bonilha [UNESP]
Jorge, Andre Mendes [UNESP]
Souza, Hirasilva Borba Alves de [UNESP]
Título da Revista
ISSN da Revista
Título de Volume
Editor
Sociedade Brasileira de Zootecnia
Resumo
Um experimento foi conduzido no intuito de avaliar ovelhas de descarte abatidas em diferentes estágios fisiológicos e terminadas em confinamento, quanto aos rendimentos de carcaça e seus cortes, assim como os percentuais de cada não-componente da carcaça. Utilizaram-se 21 ovelhas da raça Santa Inês com idade média de 6 anos, distribuídas nos tratamentos: OL = ovelhas mantidas por 60 dias em lactação com seus cordeiros e abatidas um dia após o desmame dos mesmos; OSC = ovelhas mantidas por 60 dias em lactação com seus cordeiros e mais um período de aproximadamente 30 dias sem os cordeiros, no intuito de recuperar o peso corporal perdido na amamentação, e posteriormente abatidas; e ONP = ovelhas mantidas por 60 dias em confinamento e que não pariram durante o ano. As ovelhas que permaneceram por 60 dias em confinamento e que não pariram durante o ano apresentaram maiores rendimentos de carcaça quente 45,00 e fria 44,73% em comparação àquelas mantidas por 60 dias em lactação com seus cordeiros e abatidas um dia após o desmame: 40,80 e 40,66%. Os rendimentos dos cortes da carcaça (perna, lombo, paleta, costelas e pescoço) foram similares entre todas as ovelhas abatidas nos distintos estágios fisiológicos. Os rendimentos dos não-componentes da carcaça, com exceção dos valores do fígado, do sangue, do úbere e da gordura interna, foram similares entre as ovelhas.
The objective of the experiment was to evaluate discarded ewes slaughtered at different physiological stages and terminated in feedlot for yields of carcass and cuts and the percentage of each non carcass component. Twenty-one Santa Inês ewes were used, with average age of six years old, distributed into the following treatments: EL = ewes that had remained in lactation for 60 days with their respective lambs until slaughtering; EWL = ewes that remained in lactation for 60 days with their respective lambs and a further 30 days approximately without lambs to recover lost of body weight during suckling, and were subsequently slaughtered; and ENC = ewes that remained in feedlot for 60 days and did not deliver during the year. The results obtained in this research showed that ewes that remained in feedlot for 60 days and did not deliver during the year presented higher hot (45.00) and cold (44.73%) carcass yields, compared to ewes that had remained in lactation for 60 days with their respective lambs until slaughtering (40.80 and 40.66%). Carcass cut (leg, loin, shoulderblade, ribs and neck) yields were similar among all ewes slaughtered in the different physiological conditions. Non carcass component yields were similar among the ewes slaughtered in different physiological stages, except for the liver, blood, udder and internal fat values.
The objective of the experiment was to evaluate discarded ewes slaughtered at different physiological stages and terminated in feedlot for yields of carcass and cuts and the percentage of each non carcass component. Twenty-one Santa Inês ewes were used, with average age of six years old, distributed into the following treatments: EL = ewes that had remained in lactation for 60 days with their respective lambs until slaughtering; EWL = ewes that remained in lactation for 60 days with their respective lambs and a further 30 days approximately without lambs to recover lost of body weight during suckling, and were subsequently slaughtered; and ENC = ewes that remained in feedlot for 60 days and did not deliver during the year. The results obtained in this research showed that ewes that remained in feedlot for 60 days and did not deliver during the year presented higher hot (45.00) and cold (44.73%) carcass yields, compared to ewes that had remained in lactation for 60 days with their respective lambs until slaughtering (40.80 and 40.66%). Carcass cut (leg, loin, shoulderblade, ribs and neck) yields were similar among all ewes slaughtered in the different physiological conditions. Non carcass component yields were similar among the ewes slaughtered in different physiological stages, except for the liver, blood, udder and internal fat values.
Descrição
Palavras-chave
área de olho-de-lombo, fêmeas de descarte, ovino, rendimento de carcaça, discard females, dressing percentage, rib eye area, sheep
Como citar
Revista Brasileira de Zootecnia. Sociedade Brasileira de Zootecnia, v. 38, n. 7, p. 1322-1328, 2009.