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Provedor de dados:  PAB
País:  Brazil
Título:  Performance of crossbred steers post-weaned in an integrated crop-livestock system and finished in a feedlot
Autores:  Costa,Patrícia Monteiro
Barbosa,Fabiano Alvim
Alvarenga,Ramon Costa
Guimarães,Sérgio Teixeira
Lampeão,Ângelo André
Winkelströter,Larissa Kretli
Maciel,Isabella Cristina de Faria
Data:  2017-05-01
Ano:  2017
Palavras-chave:  Beef cattle
Feed intake
Integrated systems
Resumo:  Abstract: The objective of this work was to evaluate the performance of crossbred steers post-weaned in an integrated crop-livestock system (ICL) and finished in a feedlot, fed either a high-level concentrate diet or whole corn with no roughage. Weaned calves of two breed groups - ½ Angus × ½ Nellore, and ½ Charolais × ¼ Angus × ¼ Nellore - were allotted in a completely randomized experimental design (CRD). During the rainy season, the ½ Angus × ½ Nellore animals showed a higher performance than the ½ Charolais × ¼ Angus ×¼ Nellore ones, with 0.748 and 0.490 kg average daily gain, respectively. The productivity in the post-weaning period was 926 kg ha-1 body weight in a 11-month period, in the ICL system. Subsequently, the animals were confined and fed high-concentrate diet or whole corn with no roughage, in a CRD with a 2×2 factorial arrangement. In the feedlot, the ½ Charolais × ¼ Angus × ¼ Nellore animals showed lower values for carcass average daily gain, carcass yield, and slaughter weight than the ½ Angus × ½ Nellore animals. The high productivity in the ICL shows that this strategy, associated with the use of crossbreeding during the post-weaning and finishing stages, can be indicated for the new demand for a sustainable livestock activity.
Tipo:  Info:eu-repo/semantics/article
Idioma:  Inglês
Editor:  Embrapa Secretaria de Pesquisa e Desenvolvimento

Pesquisa Agropecuária Brasileira
Relação:  10.1590/s0100-204x2017000500009
Formato:  text/html
Fonte:  Pesquisa Agropecuária Brasileira v.52 n.5 2017
Direitos:  info:eu-repo/semantics/openAccess

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