USE OF PROBIOTICS WITH CHITOSAN IN LIVESTOCKING AGRICULTURE
To normalize the activity of the gastrointestinal tract of young animals, agricultural animals use specific means of correction of microflora - probiotics and prebiotics. One of the promising prebiotics is the natural polysaccharide chitosan. To study the effectiveness of the use of chitosan in the composition of the probiotic feed additive "Mucinol" and the feed additive "Provagen" with chitosan, scientific and economic experiments were carried out on young animals of farm animals - calves and pigs. Taking into account the live weight and the growth rate, the control and experimental groups of piglets of a large white breed of 4 weeks of age with 10 heads in each group and 3 groups of black and motley breeds of 1-1.5 months of age with 10 heads in each. Piglets of the control group received a common diet, adopted in the farm. The animals of the experimental group were fed in addition to the basic diet for 10 days in a dose of 5 g per head of the drug "Mucinol". Calves of group 1 control, 2 and 3 - experienced. To the calves of the 2nd group, probiotic "Provagen" (14 g/head) was bottled daily for 7 days, for the animals of the 3 groups - a complex of this probiotic (14 g/head) with chitosan (0.8 g/head). According to the received data, at 6 weeks of age the live weight of the piglets of the test group was higher in comparison with the control by 4.5%. At the age of 8 weeks the youngsters of the experimental group were 8.8% higher than the control group by live weight, and by 7.0% after the end of the experiment in 10 weeks. The average daily gain of live weight of experimental animals for 42 days of the main period of the experiment was 356 g in the control group, and the experimental group - 390 g. Feeding of the experimental group of test feed additives to the pigs had a beneficial effect on the clinical parameters of the blood. At the end of the experiment, the number of erythrocytes in the animals of the experimental group was higher than in the control group by 1.3%, the hemoglobin content by 10.2%. At the same time, the number of leukocytes was lower than in the control ones by 4.5%. The probiotic "Mucinol" complex with chitosan positively influenced the protein metabolism of the test group pigs. Thus, the content of total protein in the blood serum of the experimental group at the end of the experiment exceeded the analogous parameter in animals of the control group by 13 g / l (19.8%). Increase in the level of protein in the blood serum of pigs of the experimental group indicates more intensive oxidation-reduction processes in their body and indicates an increase in protein-synthesizing function of the liver. In the calves' experiment, the probiotic "Provagen" with chitosan for 7 days had a tendency to optimize calves of the level of typical Escherichia in the contents of the large intestine. In addition, the animals of the ex-perimental group showed an increase in gross growth by 19.9% and daily average daily weight gain by 21.3%.