Reproductive Abilities of Pigs when Using New Standards of Protein Nutrition

Abstract

Feeding with diets developed on new standards of feeding had positive effect on quality of sperm product. So the volume of boars’ sperm of experimental group was increased at 9,5 %,sperm cells concentration - at 12,9 % and common number of active sperm cells - at 25,3 % compared to control group, fertilization rate of sows of experimental group was on the level of the control one, it means that decrease of number of active sperm cells in the amount of 2,5 mlrd did not have any effect on this value. Insemination of sows with decreased dose of active sperm cells didn’t have any effect on multiple pregnancy, litter weight at birth and piglet weight at birth. But milkiness in experimantal group was higher compared to the control one at 5,9 %.On the basis of the researches conducted a method of boars sperm dilution was developed allowing to decrease the number of active sperm cells in the amount of 2.5 mlrd.