Digestibility of nutrient substances and intensivity of utilization of feed nitrogen in thoroughbred and hybrid pigs

The digestibility of nutrient substances and degree of utilization of feed nitrogen were determined in thoroughbred pigs of different breed (Tuklinskaya, White Large, Landras) and hybrid pigs obtained in different back crossing. It was shown, that the digestibility of nutrient substances in pigs of the Tuklinskaya breed is higher than in thoroughbred pigs of the same age of the White Large and the Landras breeds. The use of pigs of the Tuklinskaya breed in back crossing permit to the increase of digestibility of nutrient substances and utilization of feed nitrogen in hybrid piglets.