Year 2017, Volume 2, Issue 3

Year : 2017
Volume : 2
Issue : 3
   
Authors : Ondrej KADLEČÍK, Eva HAZUCHOVÁ, Nina MORAVČÍKOVÁ, Veronika KUKUČKOVÁ, Radovan KASARDA
Title : GENETIC DIVERSITY IN SLOVAK SPOTTED BREED
Abstract : The objective of the study was to evaluate inbreeding and genetic diversity in Slovak Spotted cattle. Reference population contained genealogic information on 36949 animals (129 sires and 36820 cows) that were used in the analyses. Pedigree completeness indexes in the first three generations were on the level of 100 %, in the 5th generation it was 60 %. Since 1970, inbreeding trend was positive with significant increasing in 1990. Average relationship was 0.8 %, inbreeding rate 0.36 % and ΔF = 0.094 %. In the reference population 43 % animals was inbred, 68 % of sires and 33 % cows, with also 67 % purebred cows, as well. Total genetic diversity loss in the reference population and population of cows was the same, closely under 1%, in purebred cows 1.19 % and sires even due to higher inbreeding level 1.78 %. Genetic diversity loss was more influenced by the genetic drift 0.80% in the reference population, 1.47% in sire group, than by effective number of founder unequal contributions. F statistic showed fines superiority of heterozygosity by sire lines subpopulations, in the whole sire group (FIS = - 0.12) and their minimal differentiation (FST = 0,098). Obtained results showed that inbreedization process started in this population. Monitoring and better genetic management are important from the point of its further sustainable development.
For citation : Kadlečík, O., Hazuchová, E., Moravčíková, N., Kukučková, V., Kasarda, R. (2017). Genetic diversity in Slovak spotted breed. AGROFOR International Journal, Volume 2. Issue No. 3. pp. 124-131. DOI: 10.7251/AGRENG1703124K
Keywords : diversity, inbreeding, pedigree analysis, Slovak spotted, sustainable agriculture
   
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