AAB Archives Animal Breeding AAB Arch. Anim. Breed. 2363-9822 FBN Dummerstorf Göttingen, Germany 10.5194/aab-55-552-2012 Statistic and genetic parameters of 205-day weaning weight of beef calves Szabó F. 1 Szabó E. 2 Bene S. 3 University of West Hungary, Hungary University of Kaposvár, Hungary University of Pannonia, Hungary 10 10 2012 55 6 552 561 Copyright: © 2012 F. Szabó et al. 2012 This work is licensed under the Creative Commons Attribution 3.0 Unported License. To view a copy of this licence, visit https://creativecommons.org/licenses/by/3.0/ This article is available from https://aab.copernicus.org/articles/55/552/2012/aab-55-552-2012.html The full text article is available as a PDF file from https://aab.copernicus.org/articles/55/552/2012/aab-55-552-2012.pdf

The aim of the study was to do genetic evaluation of the 205-day weaning weight of pure bred herds of different beef cattle breeds kept in Hungary and supply results for genetic programmes of different breeds. <br><br> Population genetic analysis was performed on data from 42695 purebred beef calves from seven breeds born from 1981 to 2005 in Hungary. Animal model was used for the estimations. Sire, herd, age of dam at calving, birth year, season of birth and sex of calf had significant effects on 205-day calf weaning weight for each breed. Significant breed differences and breed overlaps were found. Direct heritability value estimates were 0.18 to 0.61, the maternal heritability values from 0.07 to 0.38, and the total heritability values were between 0.09 and 0.35. The direct-maternal genetic correlations were high and negative for all the breeds varying from −0.63 to −0.88.