Estimation of Repeatability and Heritability of the Weaning Weight and Adult Weight for Friesian Holstein Dairy Cattle in BBPTU-HPT Baturraden, Purwokerto

The purpose of this study was to estimate the value of genetic parameters consisting of the repeatability values of weaning weight and adult weight, as well as the heritability of weaning weight and adult weight. The research material was the recording data of weaning weight and adult weight of 100 cows. This research method was a historical survey method of performance data and production data. The variables observed in this study were weaning weight and adult weight. The data was analyzed by using variance method, namely correlation in class to calculate the value of repeatability with the number of measurements more than two measurements of per individual and half brother correlation to calculate the value of heritability with the number of children of each male that was not the same. From the result of the study, it can be concluded that the value of weaning weight repeatability and the adult weight of Holstein Friesian (FH) dairy cattle in BBPTU-HPT Baturraden was high at 0.54 ± 0.05 and 0.58 ± 0.05. The heritability of weaning weight and adult weight was also high, 0.59 ± 0.38 and 0.60 ± 0.39. Repeatability and heritability values were equally high, so both can be used as considerations in decision making for selection