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Evaluation of reproductive performance and genetic variation in bulls of the Polish White‐Backed breed
Author(s) -
SawickaZugaj W,
Chabuz W,
Litwińczuk Z,
KasprzakFilipek K
Publication year - 2018
Publication title -
reproduction in domestic animals
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.546
H-Index - 66
eISSN - 1439-0531
pISSN - 0936-6768
DOI - 10.1111/rda.13085
Subject(s) - breed , biology , inbreeding , microsatellite , population , zoology , veterinary medicine , genetic variation , progeny testing , allele , genetics , demography , medicine , selection (genetic algorithm) , artificial intelligence , sociology , gene , computer science
Contents The aim of the study was to evaluate genetic variation, reproductive performance and the degree of relationship of White‐Backed bulls entered in the breed registry and approved for breeding. The study included 32 bulls of the White‐Backed ( WB ) breed with an entry in the breed registry and used for breeding in the years 2003–2015. Eleven microsatellite DNA sequences ( TGLA 222, BM 2113, TGLA 53, ETH 10, SPS 115, TGLA 126, TGLA 122, INRA 23, ETH 3, ETH 225 and BM 1824) were used to analyse variation in the WB bulls. The bulls most often used for breeding were Chilon (1,073 doses), Mak (939 doses) and Jaguar (858 doses). The bulls Mak, Chilon and Jak had the greatest influence on the active population of White‐Backed cattle, with the most daughters. In the analysed population of White‐Backed bulls, a total of 79 different alleles were identified, with a mean 7.27 per locus. The analysed pool of microsatellite loci was characterized by high values for PIC , H O and H E (>0.6), and the entire population was in genetic equilibrium. The estimated level of inbreeding within the population ranged from −0.2277 ( ETH 225) to 0.0775 ( SPS 115), with a mean value of −0.0587.