Genetic and environmental factors that affect the best time of Thoroughbred horses in Brazil

Nenhuma Miniatura disponível

Data

1998-04-01

Orientador

Coorientador

Pós-graduação

Curso de graduação

Título da Revista

ISSN da Revista

Título de Volume

Editor

Blackwell Wissenschafts Verlag Gmbh

Tipo

Artigo

Direito de acesso

Acesso restrito

Resumo

On the basis of information provided by the Brazilian Association of Race Horse Breeders, we analysed the racing performance of 947 Thoroughbred horses in races held from 1985 to 1992. The performance was evaluated using the best, time of the animals. The variance component was obtained by the derivative-free restricted maximum likelihood method, and the model used contained fixed effects of the racing month and year, sex, race track, track condition, animal age, number of competitors in race, and distance, and the random animal effect. The low heritability estimate obtained (0.12) indicates that selection based on animal phenotypic value must induce small genetic changes in this trail.

Descrição

Palavras-chave

Idioma

Inglês

Como citar

Journal of Animal Breeding and Genetics-zeitschrift Fur Tierzuchtung Und Zuchtungsbiologie. Berlin: Blackwell Wissenschafts-verlag Gmbh, v. 115, n. 2, p. 123-129, 1998.

Itens relacionados

Financiadores