REPRODUCTIVE QUALITY AND ADAPTIVE ABILITY IN BULLS-SIRES OF THE HOLSTEIN AND RED DANISH BREEDS IN THE CONDITIONS OF ALTAI TERRITORY Article Porfir'ev I.A., Sun Sot, Rabinovich I.E. Сельскохозяйственная биология. Редакция журнала "Сельскохозяйственная биология". Vol. 38. 2003. P. 62-68
