AAB Archives Animal Breeding AAB Arch. Anim. Breed. 2363-9822 FBN Dummerstorf Göttingen, Germany 10.5194/aab-53-1-2010 Inbreeding effects on exterior traits in Polish konik horses Wolc A. 1 Balińska K. 2 Department of Genetics and Animal Breeding Department of Horse Breeding, Poznań University of Life Sciences, Poznań, Poland 10 10 2010 53 1 1 8 Copyright: © 2010 A. Wolc 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/53/1/2010/aab-53-1-2010.html The full text article is available as a PDF file from https://aab.copernicus.org/articles/53/1/2010/aab-53-1-2010.pdf

Conformation traits of 284 Polish konik mares used in breeding until 2005 were analyzed including pedigree information on 477 individuals. Average inbreeding coefficient was in SK Dobrzyniewo 5.9 %, in SK Kobylniki 5.1 %, and 5.6 % in SO Sieraków. No significant effect of inbreeding on conformation traits was observed. Heritability was estimated as: 0.65 (±0.13) for height at whither, 0.22 (±0.14) for circuit of chest and 0.65 (±0.13) for circuit of cannon. Negative phenotypic trend was observed for girth circumference and positive for circuit of cannon. No significant genetic trends were observed for the analyzed traits, which agrees with the assumption of breeding program in genetic reserve flocks.