THE EFFECTIVENESS OF THE USE OF PRO- AND PREBIOTIC PREPARATIONS IN RAISING LAMBS IN THE MILK PERIOD

One of the promising directions in this matter is the introduction of probiotic and prebiotic preparations into the diets of animals. The starting material for the scientific and economic experiment was ewes with lambs of the Stavropol breed, grown in a commercial economy. The purpose of the work is to study the effect of the probiotic preparation "BioPlus YC" and the prebiotic preparation "Kormomix MOS" both separately and jointly on the development and meat productivity of lambs of the Stavropol fine-wool breed. The results of the use of the probiotic preparation "BioPlus YC" and the prebiotic preparation "Kormomix MOS" in the cultivation of rams of the Stavropol breed up to 8 months of age are presented. Their positive influence on their development and meat productivity has been established. In terms of live weight, the significant advantage of the animals of the experimental groups over the control ones ranged from 5.6% to 12.2%. Experienced animals had the best meat qualities. Sheep II, III, IV of the experimental groups exceeded the control ones: - in terms of pre-slaughter weight, respectively, by 2.1 kg (5.9%), 1.86 kg (5.2%), 4.15 kg (111.8%); - by slaughter weight by 1.59 kg; (111.0%), 1.17 kg (108.1%), 3.35 kg (123.2%); - by slaughter yield by 1.96%, 1.07%, 4.18%. In the carcasses of experimental animals, compared with the control, there was a greater percentage of first-class cuts. The best coefficient of meat was in carcasses from lambs of groups III and IV, which amounted to 3.53 and 3.54, respectively, against 3.47 in the control. In terms of the cross-sectional area of the longest muscle of the back (the area of the muscular eye), the superiority was also in the experimental groups of animals, which amounted to 102.4-107.7% in relation to the control.