In order to increase productivity of pigs, combined silage including Bacillus subtilis probiotic has been developed. The studies showed that when 20 % of the combined silage (75 g of the Bacillus subtilis culture per 1 ton of alfalfa, 50 kg of pumpkin and 60 kg of grape pomace) is introduced into the nutrient rations of boars, their ejaculate volume increases by 20.9 %, the number of sperms – by 22.1 %, preservation of SH groups – by 13.6 %, operation of power supply system in the gametes – 2.6 times, and fertility of sows from the first insemination – by 25.0 %. Introduction of combined silage with Bacillus subtilis into the diet of sows (1 ton of alfalfa + 90 kg of grape pomace + 50 kg of pumpkin + 100 g of the probiotic) increases the number of weaned piglets by 0.6 animals, weight of weaned piglets by 2.3 kg, and increases piglets viability by 5.0 %.