Population genetic parameters of beef cattle.1st Paper:Heritability values of the most important traits
2000
Szabó,F. | Lengyel,Z. | Wagenhoffer,Zs. | Dohy,J.
The paper summarizes the literature for the heritability values of the most important traits of beef cattle.Moreover it shows the results of the study for the heritability values evaluated with analyses of variance of progeny groups on the basis of the American data of a great, number (n=2691-7084) of animals.During the study the heritability values (h2) were found as follows: gestation length 0.46, birth weight 0.39, calving difficulty 0.07, unassisted birth 0.11, cesarian section 0.10, calf loss or survival rate to weaning 0.07, weaning weight of the calves 0.29, 200-day weight of the calves 0.19, 400-day weight of the heifers 0.47, 550-day weight of the heifers 0.45, rate of the heifers showed oestrus at a given age 0.31, age at puberty of heifers 0.37, daily gain during the fattening period 0.50, final weight 0.43, carcass weight 0.39, carcass percentage 0.32, rib eye area 0.59, fat thickness 0.54, kidney, pelvic and heart fat percentage 0.68, marbling 0.37, tenderness 0.50, prime meat weight 0.50, prime meat percentage 0.64,fat trim weight 0.49, fat trim percentage 0.58, bone weight 0.49, bone percentage 0.46.
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