Влияние симбиотического препарата на основе штамма E. coli Vl 613 «Пролизэр-БиоР» на естественную резистентность организма, гематологические и биохимические показатели крови при откорме свиней

The aim of our researchers is studying the resistance and metabolic processes in swine organisms using Prolizar-BioR preparation as a source of making up lysine in fattening monogastric animals using nonstandard diets. The results of studying E. coli VL 613 strain in vitro were used as a base for the scheme of the experiment which was conducted on the Federal State Unitary Enterprise “Klyonovo-Chagodaevo” experimental farm. Little Large White boars served as materials for the experiment. Two swine groups were formed by the principle of analogues. Prolizar-BioR preparation was introduced into experimental animals with potable water according to the scheme of watering: once over 4 days at a dose of 1,5x109 CFU per head a day during the whole experimental period as a source of compensation for specially created deficiency of lysine at the level of 25% in the diet against the control. Average daily gain of live weight in experimental animals at 25% lysine deficiency was 538 g and that was 9% more against the control ones (494g) fed the full diets balanced by amino acid composition according to the generally accepted standards of feeding. Mean values of clinical and biochemical indices of swine blood in the given experiment were within the physiological norms at all groups. Blood serum lysozyme activity index increased by 6, 5 % (P