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InVet
versão On-line ISSN 1668-3498
Resumo
MORAO, G.A. e ADRIEN RUEGGER, M.J.. Productive performance, carcass grading and yielding of holstein argentino young entire males in a feedlot. InVet [online]. 2011, vol.13, n.2, pp.09-16. ISSN 1668-3498.
Productive performance, carcass grade and yield of feedlot-fed Holstein Argentino young bulls and steers have been compared. All the animals were slaughtered before 2 years of age. Young bulls had average daily gains 12,9% greater than steers and 14,9% greater feed efficiency. Carcass yield of intact males was 2% higher than steers, and obtained a higher proportion of fat type 1. This study shows that young bulls have a better productive performance than steers. Age, nutrition and management of animals have reduced the importance of potential disadvantages. The existence of a new category of slaughter in Argentina called MEJ (young intact male) will provide higher yielding and heavier carcasses.
Palavras-chave : Feed lot; Efficiency; MEJ (young intact male); Steer; Intact males.