Data/hora: 11/06/2024 08:23:15

Provedor de dados: 	65	
País: 	Brazil	
Título: 	Heritability estimates for body weight and height at withers in Brazilian army horses	
Autores: 	Tamioso,Priscilla Regina; Cosmo,Tiago Rafael; Pimentel,Concepta Margaret McManus; Dias,Laila Talarico; Teixeira,Rodrigo de Almeida.	
Data: 	2012-12-01	
Ano: 	2012	
Palavras-chave: 	Cavalry; Growth traits; Selection.	
Resumo: 	The aim of this study was to estimate the heritability for weight and height at withers of 260-780 days of age No Defined Breed (NDB) horses, at intervals of 40 days, which belong to the Brazilian Army cavalry. Thus, the model considered the direct genetic effects as random ones, as fixed, the effects of sex and year of birth and the linear effects of height at withers and age, as covariates for the analysis of body weight, whereas for the analysis of height, the linear effect of weight was included as a covariate. For the complete data, the estimated heritability coefficients were 0.40±0.034 and 0.70±0.019 for weight and height at withers, respectively, indicating that individual selection for these traits may be effective. On the other hand, for the data subdivided into age classes, the heritability coefficients ranged between 0.04 and 0.77 for weight, with the highest estimation for the class between 440 and 480 days of age, which indicates a higher possibility of weight selection during this period. For height, the heritability values ranged between 0.08 and 0.98, being the highest estimate found between 300 and 340 days of age, corroborating, thus, to the selection of the trait at this age.	
Tipo: 	Info:eu-repo/semantics/article	
Idioma: 	Inglês	
Identificador: 	http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-84782012001200023	
Editor: 	Universidade Federal de Santa Maria	
Relação: 	10.1590/S0103-84782012005000093	
Formato: 	text/html	
Fonte: 	Ciência Rural  v.42 n.12 2012	
Fonte: 	info:eu-repo/semantics/openAccess