Lobko V. Hygienic evaluation of the influence of prebiotic "Bio-active" on natural resistance and productivity of rabbits.

The optimal scheme of the use of the prebiotic "Bio-active" in the feeding of young rabbits has been experimentally determined: the dose - 2,0 g/per a head, the period of feeding - 30 days. The addition of prebiotic from the age of 45 days using the developed scheme promotes the increase in the live weight of the rabbits by 11,85 %, preservation - by 22,2 %. Under the influence of the prebiotic under investigation the content of the erythrocytes in the blood of rabbits increases by 29,4 %, hemoglobin - by 5,8 %; in the blood serum the amount of protein increases by 6,9 %, calcium - by 9,1 %, phosphorous - by 7,2 %, ferrum - by 15,5 %, zink - by 10,2 % and cuprum - by 7,1%. The use of prebiotic in the feeding of rabbits activates the processes of metabolism that has been proved by the increase in the activity alaninaminotranspherase - by 20,41 % and aspartataminotranspherase - by 17,8 %. The increase in the preservation rate of the rabbits correlates with the higher indices of nonspecific resistance of the body. Under the influence of the prebiotic "Bioactive" in the young of rabbits the slaughter output increases by 0,83 %, the amount of meat - by 15,8 %, in the rabbit meat the level of moisture decreases by 3,53 %, fat - by 3,44 %, the number of protein increases by 2,86 %.