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Provedor de dados:  Ciência Rural
País:  Brazil
Título:  Carcass and meat characteristics of crossbred steers submitted to different nutritional strategies at growing and finishing phases
Autores:  Rezende,Pedro Leonardo de Paula
Fernandes,Juliano José de Resende
Freitas Neto,Marcondes Dias de
Prado,Cristiano Sales
Pereira,Marcela Luzia Rodrigues
Data:  2012-05-01
Ano:  2012
Palavras-chave:  Rib eye area
Fat thickness
Carcass yield
Resumo:  This study was carried out to evaluate the effects of different nutritional strategies at growing and finishing phases on carcass and meat characteristics from 24 crossbred steers predominatly Holstein, slaughtered at 15 months of age and with 395.00kg of body weight. At the growing phase, the animals were maintained on Brachiaria brizantha pasture with two levels of supplementation in amounts equivalent to 0.5 or 1.0% of body weight. Subsequently, the animals were finished in feedlot with diets composed of 50 or 80% of concentrate. The high level of the concentrate at the finishing phase increased significantly (P<0.05) the hot carcass yield (50.16 vs. 48.62%). The lowest level of supplementation at the growing phase resulted in higher (P<0.05) percentage of carcass fat (25.61 vs. 23.39%) but it did not influence the percentage of muscle and bone. The high level of supplementation at the growing phase provided higher (p<0.05) meat tenderness, required less shear force (4.72 vs. 6.66kg cm-3) and lighter red meat (3.88 vs 2.89 points). The high feeding level during the growing phase was more interesting because it affected positively some important carcass and meat characteristics, especially tenderness.
Tipo:  Info:eu-repo/semantics/article
Idioma:  Inglês
Editor:  Universidade Federal de Santa Maria
Relação:  10.1590/S0103-84782012000500019
Formato:  text/html
Fonte:  Ciência Rural v.42 n.5 2012
Direitos:  info:eu-repo/semantics/openAccess

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