Methods of improving reproductive efficiency of sows, growth and safety of obtained animal yield from them

The article presents the results of studies to determine the effect of additives of vitamins Bc and H on the reproductive efficiency of sows, and the impact of brooders on the growth and safety of their animal yield. The object of research were 120 sows of the Belarusian large white breed, divided into four groups by 30 heads each. The pregnant and examined lactating (young) sows of the first (control) group received the basic ration of combined feed according to the recipes of the agricultural enterprise. They gave the young sows of the experimental groups the additive by 1 kg of dry matter feed over the first nine weeks of gestation in addition to the main ration: they gave the second group of sows 0.1 mg of Biotin; they gave the third group of sows 3.0 mg of folic acid; they gave the fourth group of sows 0.1 mg and 3.0 mg of vitamins H and B_c in the complex. After the sows’ farrowing, the experimental groups were divided into two subgroups each. The piglets of the first subgroups were kept under IKZK 220-250 infrared lamps or on heated floor during the entire suckling period. The source of heating piglets in the other subgroups were incandescent lamps with a capacity of 100 W or heated floor, and the means of heat localization from birth to weaning were cone-shaped brooders over the first two weeks of life. It is established that the introduction of Biotin additive increases the fertility of sows by 5.9 % (P<0.01), folic acid increases the fertility of sows by 8.7 % (P<0.001), vitamins H and Bc in the complex increase the fertility of sows - by 12.6 % (P<0.001) in comparison with the controlled group. The optimization of temperature conditions in the rest area of piglets of the second subgroups when applying the brooder, allows to increase the safety of young animals by 2.8-3.5 %, live weight at weaning by 7.8-9.1 % (p<0.05-0.01), milking capacity of sows - by 9.8-13.4 % (P<0.001), the mass of the nest at weaning - by 11.6-14.1 % (P<0.001) in comparison with those indices in the first subgroups.

свиноматка, поросенок, витамины, фолиевая кислота, биотин, брудер, sow, piglet, vitamins, folic acid, biotin, brooder

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