Effect of "Normosil" probiotics on growth, development and hematological indicators of young pigs
The article is devoted to the study of the weaning piglets productivity using the new probiotic supplement feeds Normosil under the conditions of commercial swine production. The preparation was given to the animals by drinking through drinkers in doses of 0.5; 1.0 and 1.5 ml / l of water. As a result of the conducted research, it was established that the youngest of the experimental groups had the best indicators of the growth intensity: according to the absolute body weight gain experimental groups piglets which were fed by the probiotic supplement of Normosil was ahead of the control group piglets by 0.69 kg (3.1%), according to the average daily body weight gain by 14.1 g (3.1%) and according to relative weight gain by 1.4%. The feed costs per 1 kg of gain in the experimental groups were less than that of the control group by 0.4.0.6 energy feed units or 2.3-3.5%. The preservation of the livestock by the end of the nursery period in the experimental groups was 1.4-4.8% higher than in the control group. Store pigs of the experimental groups were distinguished by a longer body and a large girth of the metacarpus. The superiority of the experimental groups in comparison with the control group was: by the length of the trunk - 2.6 cm (2.1%), by the girth - by 0.8 cm (1.1%); by indices of: stretching - by 7.8%, massiveness - by 7.5%, bone mass - by 3.2%, but inferior in the index of confusion - by 0.7%. The data of hematological studies indicate an increase in metabolic processes in the store pigs in the experimental groups, since the amount of hemoglobin in the blood of the experimental groups store pigs was higher by 0.6-3.1 ml / l than in the control group or 0.6-3.0%. In terms of erythrocyte content, the experimental groups were superior to the control group by 1.7%, and the content of leukocytes was inferior by 0.6-1.4 x 10<sup>9</sup> / l or 2.0-9.4%. The cost of young-stock breeding of experimental groups was lower by 1.8-2.6% compared to the control group, and the level of profitability of nursery in 1, 2 and 3 test groups exceeded the control group by 2.14; 2.90 and 2.53%. The highest level of profitability was observed in the second test group, who received the probiotic Normosil at a dose of 1.0 ml / l of water.