Estimation of breeding value of English Thoroughbred sires in the Czech Republic
2000
Misar, D. | Jiskrova, I. (Mendelova Zemedelska a Lesnicka Univ., Brno (Czech Republic)) | Pribyl, J.
The breeding value of English Thoroughbred sires in the Czech Republic was estimated while using results from the period of ten years (1987-1996). The performance of stallions under study was evaluated using the general handicap (GH) and the index of the performance (IDP) of two and three-year-old horses. The horses under study represented progeny of 519 sires (GH) and 583 sires (IDP). The performance was analysed with regard to the following effects: sex, age, year of start, number of starts, breeder and trainer. All these effects were highly significant for GH (in all cases) as well as for IDP (in sex, age, number of starts, breeder and trainer). By involving the effects gradually, we were able to was explain 47.44 % and 37.59 % of performance variability. Using the so-called animal model (AM), we tried to estimate the breeding value of thoroughbred stallions.
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