AAB Archives Animal Breeding AAB Arch. Anim. Breed. 2363-9822 FBN Dummerstorf Göttingen, Germany 10.5194/aab-53-123-2010 Weaning performance of beef Hungarian Fleckvieh calves: 3. Genotype × environment interaction Fördős A. 1 Füller I. 1 Bene S. 1 Szabó F. 1 University of Pannonia, Georgikon Faculty, Keszthely, Hungary 10 10 2010 53 2 123 129 Copyright: © 2010 A. Fördős et al. 2010 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/53/123/2010/aab-53-123-2010.html The full text article is available as a PDF file from https://aab.copernicus.org/articles/53/123/2010/aab-53-123-2010.pdf

The interaction of sire and population in Hungarian Fleckvieh beef cattle breed were examined in this study on data from the Hungarian Fleckvieh Breeders Association. Data of 2 345 progeny (1 260 male and 1 085 female), born between 1992 and 2003, of 35 sires from two populations were evaluated. Preweaning daily gain (PDG) and 205-day weight (205-dw) were analysed. Population, age of cows, year of birth, season of birth and sex of calves as fixed, sire and sire × population were treated as a random effect. Among the same performance data in the two populations (A, B) genetic correlation (r<sub>g</sub>), while by the gradiation of sires rank correlation (r<sub>rank</sub>), were evaluated. Data were analysed with HARVEY’S (1990) Least Square Maximum Likelihood Computer Program and SPSS 9.0 for Windows. Results were as follows: r<sub>g</sub>=PDGA−PDGB: 0.31<sub>(P<0.01)</sub>; 205-dw<sub>A</sub>−205-dw<sub>B</sub>: 0.22<sub>(P<0.01)</sub> and r<sub>rank</sub>=PDG: −0.04<sub>(P>0.05)</sub>; 205-dw: 0.078<sub>(P>0.05)</sub>. According to the result of examination important and significant (<i>P</i><0.001) sire × population interaction were found in case of the two traits in Hungarian Fleckvieh breed.