TY JOUR TI GENETIC RESOURCES OF SERVICING BULLS ACCORDING TO DNA MARKERS IN THE REPUBLIC OF TATARSTAN KW service-bull KW genotype KW allele KW CSN3 KW DGAT1 KW LGB KW PRL KW GH KW TG5 KW LEP JO Vestnik of Kazan State Agrarian University AU Shaydullin, R.R. AU Sharafutdinov, G.. AU Sibagatullin, F.S. AU Zaripov, F.R. PY 2017 IS 11 PB Kazan state agrarian University