Published in Scientific Papers. Series D. Animal Science, Vol. LXVII, Issue 1
Written by Nevyana STANCHEVA, Ivona DIMITROVA, Milena BOZHILOVA-SAKOVA, Todor TZONEV
The purpose of the research is to explore the relationship of the polymorphism of the FABP3 gene with milk yield per standard 120-day milking period (TMM120) in ewes from the Bulgarian Dairy Synthetic population from the herd of the Agricultural Institute-Shumen. In the experiment were involved 111 ewes of different lactations. Ewes were selected by birth type (single, twins, triplets) and had 343 milk yield records for a standard 120 days milking period. Two alleles and two genotypes were identified in the studied animals in exon 2 of the FABP3 gene (SNP3) by the PCR-RFLP technique with BseDI endonuclease. The association of the FABP3 gene polymorphism with the milk productivity of sheep was investigated by the one-way analysis of variance ANOVA model. In this study of BDSP ewes, the presence of a homozygous GG genotype at SNP3 of FABP3 resulted in increased milk yield in 2nd lactation ewes and in co-twin ewes.
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