Verbelchuk T. Efficiency, digestion of nutrients and characteristic of young pigs for slaughter, which were fed on kaolin and alunit

The dissertation presents the theoretical and experimental material of the usage of kaolin and alunit flour in the ration of young pigs for their breeding. The research has extended and completed factual, chemical compound of fodder, alunit and kaolin flour. For the first time the expediency of partial substitution of traditional mineral additions by alunit and kaolin flour has been studied experimentally. The influence of untraditional mineral additions on efficiency, digestion of nutrients, balance of nitrogen, calcium, phosphorus, iron and copper in the body of young pigs for breeding has been clarified. The influence of kaolin and alunit flour on the efficiency, digestion of nutrients of fodder, morphological and biochemical indexes of blood, slaughter characteristics and physicochemical indexes of muscle has been tested. The state of pigs' organs has been researched complexly with the usage of histological methods. It allowed objectively appreciate the action of aluminosilicate on the body of animals and recommend them for balancing of the ration for breeding pigs. The usage of kaolin and alunit flour in amount of 3% of the dry material in the ration of young pigs on breeding promotes the increase of the absolute growth to 5,6 - 7,9% of the average daily growth on the 4,9 - 7,5% and decrease of consumption of fodder on 1 kg growth for 5,4 - 6,9%. At the same time the prime cost of the 1 centner of the growth of the pigs on breeding decreases on 4,7 - 6,2 % and the profitability of pork production increases from 29,8 to 32,1%. The usage of the kaolin and alunit flour in amount of 3% of the dry material in the compound of ration has been recommended for breeding young pigs for the purpose of increasing the efficiency, digestion of nutrients of fodder, absorption of nutritive and mineral materials in the body of pigs.