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Selection for higher body weight in Nelore cattle is effective in achieving an increase of longissimus muscle area without reducing subcutaneous fat thickness R. Bras. Zootec.
Pinheiro,Tiago Roque; Mercadante,Maria Eugênia Zerlotti; Albuquerque,Lucia Galvão de; Bonilha,Sarah Figueiredo Martins; Monteiro,Fábio Morato.
The objectives of this study were to estimate heritabilities and genetic and phenotypic correlations between carcass traits measured by ultrasound and other economically important traits generally used as selection criteria in beef cattle and to estimate the genetic changes in the carcass traits as a result of selection for post-yearling weight. Carcass traits measured by ultrasound at two ages (12 and 18 months) and the correlation of these traits with weight, hip height and body condition score of males (yearling) and females (post-yearling) were analyzed. Multi-trait analysis was performed using the restricted maximum likelihood method under an animal model. To demonstrate the effect of selection for growth, phenotypic and expected breeding value means...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Carcass traits; Correlated responses; Genetic correlation; Ultrasound; Zebu cattle.
Ano: 2012 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-35982012000600016
Registros recuperados: 61
Primeira ... 1234 ... Última
 

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