PRODUCTIVITY OF YOUNG PIGS FOR FATTENING WITH A LIVE OF 70-110 KG FEEDING WITH COMPLETE FEEDS

Rationing feeding young pigs for fattening with a live weight of 70-110 kg performed on the basis of the concentration of energy and nutrients in 1 kg of complete mixed fodders. Feeding of young pigs was carried out with complete mixed fodders for young pigs for fattening with a live weight of 70-110 kg in which the rate of methionine+cystine concentration was decreased from 6 g to 5 g, tryptophan concentration from 2 g to 1.6 g. Content of methionine+cystine and tryptophan determined by the recommended optimal essential amino acids balance in pig's diets, % to lysine. 1 kg of impelled mixed fodder for young pigs for fattening with a live weight of 70-110 kg contains 13 MJ of metabolisable energy, 860 g of dry matter, not less than 160 g of crude protein, 8 g of lysine, 5 g of methionine + cystine, 1.6 g of tryptophan, not more than 60 g of crude fiber and 8 g of salt, not less than 8 g of calcium and 6 g of phosphorus. Mixed fodder for young pigs for fattening with a live weight of 70-110 kg is well balanced according to the content of normalized micro elements and vitamins and includes enzymes, antioxidant and adsorbent. Complete feed for young pigs for fattening with a live weight of 70-110 kg was made from milled cereals (wheat, barley, corn) – 80 % and specially developed protein-vitamin and mineral supplements – 20 % 1 kg of 20 % protein-vitamin-mineral supplement for young pigs for fattening with a live weight of 70-110 kg contains not less than12 MJ of metabolisable energy, 900 g of dry matter, 350 g of crude protein, 28 g of lysine, 12 g of methionine + cystine, 5 g of tryptophan, not more than 50 g of crude fiber and 40 g of salt, not less than 39 g of calcium and 18 g of phosphorus. It has been established that the use of complete feed for young pigs for fattening with a live weight of 70-110 kg, according to the State Standard 4507:2005 leads to an increase in live weight of young pigs from 70 to 104 kg at the average daily gain – 756 g and at the conversion of 3.8 kg of mixed fodders per 1 kg of young pigs gain. It was concluded that obtained productivity of young pigs using complete feed for young pigs for fattening with a live weight of 70-110 kg, according to the State Standard 4507:2005 has not met the requirements of intensive pig breeding and characterized by low economic efficiency of pork production. It has been determined that the use of complete feed for young pigs for fattening with a live weight of 70-110 kg with low concentration of sodium chloride, calcium and phosphorus and improvement of pigs amino acid nutrition because of the threonine inclusion to the mixed fodder's composition must be the main direction to increase the productive qualities of young pigs