Dynamics of changes in rabbit meat productivity at use in rations probiotic supplements «Biogumitel»

The purpose of research - to study the effect of probiotic supplements «Biogumitel» to change the meat productivity of rabbits. For this purpose, 40 rabbits have been matched at the age of 60 days (4 groups of 10 animals each) of Giant Gray×Вutterfly breed with mass from 1603 to 1615 g. The rabbits from group I (control) received only the basic diet, the basic diet of the rabbits from group II (experimental) was additory introduced 0.1 g of probiotic «Biogumitel» per 1 kg of body weight, III (experimental) group - 0.2 g/kg of body weight, IV (experimental) group - 0.3 g/kg of body weight. Meat productivity of rabbits was assessed by the dynamics of change in body weight, the absolute weight gain, average daily weight gain and the results of the control slaughter. Weighing was performed in the morning before feeding every 15 days, starting from 60 days of age. In all age periods indicators of meat productivity of rabbits from experimental groups were higher in comparison with their counterparts in the control group. At the end of the experiment parameters of body weight, absolute and average daily weight gain of the study groups ranged from 3508 g to 3938 g; from 1901 to 2335 g; from 21.1 g to 25.9 g, respectively. As a result of the control slaughter the rabbits of group I (control) were inferior to the counterparts from group II in hot carcass by 107 g (5,52%), group III by 170 g (8.78%) and group IV by 150 g (7, 74%). At hot carcass output the rabbits of the experimental groups II, III and IV of prevailed over their counterparts from the control group by 1.43%; 2.53% and 2.24% respectively. It has been found that the inclusion of probiotic feed additive «Biogumitel» in the rabbits diet had a positive impact on the dynamics of the meat productivity. Maximum indicators of the studied parameters were obtained using the additive in a dose of 0.2 g/kg of body weight.