COMPLEX MINERAL MIXTURE BASED ON BELITE SLUDGE EFFECT ON THE FATTENING PIGS MEAT PRODUCTIVITY
The paper presents the results of studies on the effectiveness of feeding belite sludge and the created complex mineral mixture based on it in the feed of fattening pigs. A positive effect on the growth and safety of experimental animals, meat productivity, the quality of meat and lard has been established. The studies were carried out in the conditions of the economy of JSC "named after Chkalov" of the Ilanskiy District of the Krasnoyarsk Region and a zoological farm of the Institute of Applied Biotechnology and Veterinary Medicine of the Krasnoyarsk State Agrarian University on young pigs of a large white breed for two periods of fattening. To determine the effect of local mineral feeding on the meat qualities of fattening pigs, four groups of 10 heads each were formed, animals in the control group received 1% of the Borka mineral mixture to the basic diet (RR), the first experimental group - RR + 1 % of belite sludge , the second experimental group - OR + 1.5 % belite sludge, the third experimental group - OR + 1 % belite sludge in combination with iodine, manganese sulfate pentahydrate, copper sulfate pentahydrate, phosphoric fertilizing and zinc sulfate. At the end of the fattening period and the experiment, animals were slaughtered, 3 heads from each group, and the growth of muscle mass in the experimental groups was established when feeding various doses of belite sludge and a mineral mixture based on it. The inclusion of 1 % of a complex mineral mixture based on belite sludge in the diet of animals leads to an increase in the live weight of pigs by 5.85 %, the energy value of meat - 1.71 and, as a consequence, an increase in the profitability of production by 13.5 %.