Publication: Genetic and environmental factors that affect the best time of Thoroughbred horses in Brazil
Loading...
Date
Authors
Advisor
Coadvisor
Graduate program
Undergraduate course
Journal Title
Journal ISSN
Volume Title
Publisher
Blackwell Wissenschafts Verlag Gmbh
Type
Article
Access right
Acesso restrito
Abstract
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.
Description
Keywords
Language
English
Citation
Journal of Animal Breeding and Genetics-zeitschrift Fur Tierzuchtung Und Zuchtungsbiologie. Berlin: Blackwell Wissenschafts-verlag Gmbh, v. 115, n. 2, p. 123-129, 1998.
