Semchuk I. The productive qualities of pigs during their fattening which are rich in biologically active substances

production. It was determined, that pigs feeding with recommended addition of biologically active substances which consist of cfrried out fodder mixtures rised the productivity of sows and the growth intensity of fattening younger's, profitability of pork production and its quality in the conditions of pigsfarm of average size (50 - 70 sows) to a great extent. Exept their own pork production, they also realize piglets at the age of 35 days to people for their next yard fattening. Thanks to the balanced rations of pigs with biologically active additions we can ensure higher productivity and income on feeds of native production that leads to a considerable decrease of product cost and the increase of profitability of pork production to 66,4 - 71,3 per sent.