Data/hora: 04/06/2024 00:24:54

Provedor de dados: 	96	
País: 	Brazil	
Título: 	Genetic parameters for milk yield, lactation length and calving intervals of Murrah buffaloes from Brazil	
Autores: 	Malhado,Carlos Henrique Mendes; Malhado,Ana Claudia Mendes; Ramos,Alcides de Amorim; Carneiro,Paulo Luiz Souza; Souza,Julio César de; Pala,Akin.	
Data: 	2013-08-01	
Ano: 	2013	
Palavras-chave: 	Genetic correlation; Gibbs sampler; Heritability.	
Resumo: 	The major objective of this study was to estimate heritability and genetic correlations between milk yield (MY) and calving interval (CI) and lactation length (LL) in Murrah buffaloes using Bayesian inference. The database used belongs to the genetic improvement program of four buffalo herds from Brazil. To obtain the estimates of variance and covariance, bivariate analyses were performed with the Gibbs sampler, using the program MTGSAM. The heritability coefficient estimates were 0.28, 0.03 and 0.15 for MY, CI and LL, respectively. The genetic correlations between MY and LL was moderate (0.48). However, the genetic correlation between MY and CI showed large HPD regions (highest posterior density interval). Milk yield was the only trait with clear potential for genetic improvement by direct mass selection. The genetic correlation between MY and LL indicates that indirect selection using milk yield is a potentially beneficial strategy. The interpretation of the estimated genetic correlation between MY and CI is difficult and could be spurious.	
Tipo: 	Info:eu-repo/semantics/article	
Idioma: 	Inglês	
Identificador: 	http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-35982013000800005	
Editor: 	Sociedade Brasileira de Zootecnia	
Relação: 	10.1590/S1516-35982013000800005	
Formato: 	text/html	
Fonte: 	Revista Brasileira de Zootecnia  v.42 n.8 2013	
Fonte: 	info:eu-repo/semantics/openAccess