Improving the limits of tolerance of agricultural birds to ecotoxicants at the used of “Thiophan M”

А contamination by heavy metals, in particular lead and cadmium, biosphere objects causes their accumulation in the food raw material, feed and as a consequence, the intake of birds, then the person. In connection with this search for drugs, corrective influence of toxic substances in the body, increase its resistance to the effects of man-made environmental factors is important. The study of the limits of tolerance of the body to the effects of high doses of lead and cadmium in the diet with the introduction of the antioxidant Thiophan M conducted a modeling experiment on 60 broiler chickens in the diet for the growing period were administered higher concentrations of toxicants, corresponding 7.50 mg Pb and 0.75 mg Cd per 1 kg of feed, and antioxidant - 100 mg thiophane M per 1 kg of live weight poultry. The use of antioxidant resulting in increased growth rates and the birds of up to 47 %, some normalization of blood counts - calcium, inorganic phosphorus and total protein, in conditions of anthropogenic stress. Thiophan M showed detoxification properties with respect to heavy metal ions, its introduction in the poultry diet reduced the lead content to 2.88 times, cadmium - up to 18,34 times. The results indicate that the use of antioxidant Thiophan M detoxicant as heavy metals and to improve the stability limits of the body to their toxic effects is promising.