engleski

Genetic variability three autochthonous cattle breeds in Croatia

Autochthonous cattle breeds Croatian Busha (CB), Slavonian Syrmian Podolian Cattle (SSP) and Istrian Cattle (IC) are part of the national and global genetic resource whose number drastically decreased in the nineteen years of twenty century. All of three breeds are critically endangered and are included in organized protective programmes. The aim of this study is determination genetic variability within and among autochthonous Croatian cattle breeds. Blood samples were collected from 157 animals and genotyped with 20 microsatellite markers of the Utrecht List. The number of alleles was in range between 6 (BM1824, ILSTS006, INRA023) to 17 (INRA063). The highest number of polymorphic alleles is determined in CB (8, 8) and the smallest number in SSP (4, 5). The highest value of observed and expected hetreozygosity was determined in CB (HO=0, 622, HE=0, 733) and the smallest in SSP (HO=0, 531, HE=0, 538). The parameters of population subdivision shows that 8, 4% of the total genetic variability were due to differences between breeds and the rest due to individual differences. The smallest genetic distances estimation was between CB and IC and the biggest between SSP and IC.

Autochthonous cattle breeds; genetic variability; microsatellite

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