Multiple-breed, multiple traits evaluation of beef cattle in the Czech Republic
2003
Pribyl, J. | Pribylova, J. (Vyzkumny Ustav Zivocisne Vyroby, Prague (Czech Republic)) | Misztal, I. | Seba, K.
The objective of this study was to estimate breeding values for 12 beef breeds (Aberdeen Angus, Belgian Blue-White, Blonde d'Aquitaine, Charolais, Galloway, Gasconne, Hereford, Highland, Limousin, Piemontese, Salers and Simmental) and their crosses with Czech Pied (dual-purpose) and dairy breeds. Data collected in the last 12 years consisted of 125,482 records on calving ease and birth weight, 57,863 records on weight at 120 days of age, 56,947 records on weight at 210 days of age, and 22,410 records on yearling weight. The complete pedigree included 183,754 animals. Evaluation was made by Multiple-breed Multi-traits Animal model with maternal effect. Fixed effects included in the model were sex, dam age and regressions on calf and maternal heterosis. Random effects were herd x year x season herd-mate group, direct and maternal genetic and maternal environmental effects. Direct effects were highest for all traits in Charolais followed by Simmental. Maternal effects were highest for weight at 120 and 210 days of age in Czech Pied followed by Salers and Simmental, and for yearling weight in Salers followed by Simmental. The lowest effects were determined for all traits in Highland followed by Galloway.
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