The relationships between Pit-1 gene polymorphism and some performance traits in simmental and brown swiss breeds

It was aimed to investigate the genotypic structures of Pit-1 gene from genomic DNA samples taken Simmental and Brown Swiss breeds determine distribution genotype allele frequencies bovine relationships between detected genotypes some performance traits. Pit-1/HinfI polymorphisms were determined using PCR-RFLP method obtained breed cattle used in study. According Hardy-Weinberg genetic test, studied population found be equilibrium (p˃0.05) both breeds. Genotype AA, AB, BB alleles as 5.73%, 36.42%, 57.85%, respectively, for breed, while 9.43%, 42.86%, 48.01%, respectively. The actual milk yield 5953 ± 364.2, 5212 993.4, 5507 889.5 kg, 305-day 276.8, 5642 782.7, 5427 246.7 lactation period 307 47, 293 29, 303 22 days, daily 19.53 6, 18.49 8, 17.81 2 kg genotypes, 3606 253, 3558 530, 3999 099 4920 217, 4462 900, 4635 870 222 36, 240 04, 258 37 17.62 2, 15.49 16.04 3 In statistical analyses, traits not prove significant statistically.