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Title: Carcass conformation and joints composition of Churra Galega Bragançana and crossbred lambs by Suffolk and Merino Precoce sire breeds
Authors: Teixeira, A.
Cadavez, Vasco
Delfa, R.
Bueno, M.S.
Keywords: Sheep
Tissue composition
Production system
Local breed
Issue Date: 2004
Publisher: INIA - Spanish National Institute for Agricultural and Food Research and Technology
Citation: Spanish Journal of Agricultural Research. ISSN 1695-971X. 2:2 (2004) p. 217-225
Abstract: Carcasses of Churro Galego Bragançano purebred and Suffolk and Merino Precoce crossbred lambs reared under three different conventional production system of northeast of Portugal were evaluated. Carcasses of male lambs had larger muscle longissimus width (P < 0.05) and smaller subcutaneous fat thickness (P < 0.05) than the female lambs. Carcasses of crossbred lambs had higher (P < 0.05) compactness indices and leg and shoulder proportion than Bragançano purebred. Suffolk crossed had lower KKCF proportion (P < 0.05) than Bragançano and Merino crossbred lambs. Male lambs had higher (P < 0.05) muscle proportion in almost all carcass joints than the female lambs. It was concluded that Suffolk can be used as sire breed in Bragançano ewes to produce lambs with leaner and more compact carcasses and better fat distribution, which allows slaughtering at higher slaughter weight, specially in more intensive production systems. Female lambs should be slaughtered at lower carcass weight than male lambs in order to produce carcasses with the same fattening degree.
ISSN: 1695-971X
Appears in Collections:CA - Artigos em Revistas Não Indexados ao ISI

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