The effect of antioxidants on the productivity and enzymatic activity of the gastrointestinal tract of quails while reducing the risk of T-2 toxicosis

Purpose: to study the effect of antioxidants santoquine and vitamin E, included in the composition of wheat-sorghum-rapeseed type feed with a tolerant level of T-2 toxin, on the productivity and digestive processes of meat quail.

Materials and methods. The experiment was carried out on meat quails of the Pharaoh breed. At one day of age, according to the principle of analogous groups, 4 groups of 40 animals each were formed. Raised for meat until 42 days of age. Quails were individually weighed weekly to determine live weight gain and calculate feed costs per unit of production. After control slaughter at the age of 42 days, the activity of digestive enzymes: proteinases, amylases and cellulases was studied in the contents of the muscular stomach and duodenum of 5 animals from each group.

Results. In the course of the studies, new experimentally substantiated data were obtained on the effectiveness of reducing the risk of T-2 toxicosis in the body of meat quails due to the rational joint use of santoquin antioxidant drugs in the composition of mixed feeds of the wheat-sorghum-rapeseed type with a tolerant level of T-2 toxin at a dose of 150 g/ t and vitamin E at a dose of 25 thousand IU/t. Thanks to this, in the quails of the 3rd experimental group, there was an increase in the survival rate of the livestock by 7.8 %, and an increase in live weight by 13.19 % (P<0.05). The meat poultry of the 3rd experimental group had the best pay for feed in terms of live weight gain, having spent 12.01 % less feed to obtain 1 kg of gain compared to the quails of the control group. Combined additions of the tested antioxidants contributed to a significant (P<0.05) increase in the activity of proteinases, cellulases and amylases in the contents of the muscular stomach by 24.15, 33.30 and 18.18 % and in the duodenum - by 13, compared to the analogues of the control group. 58, 13.93 and 15.02%, respectively.

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16. GOST 20264.4-89 “Enzyme preparations. The method of determining amylolytic activity"