EFFECTS OF NANOSTRUCTURED SAPROPEL ON THE LIVE WEIGHT OF GEESE AND THE QUALITY OF THEIR MEAT

Sapropel is a natural raw material containing biologically active substances - proteins, fats, carbohydrates, vitamins, and a wide range of macro- and micro-elements of natural origin. It is possible to use sapropel as a feed additive for increasing the productivity of farm animals and improving product quality. A nanostructured sapropel with 50-180nm particle sizes was made from the natural sapropel of Lake Beloye deposit in the Russian Federation. It demonstrated significant biological effects in living organisms. Its use for growing broiler geese in the conditions of peasant farming contributed to an increase in meat productivity. Adding nanostructured sapropel to the feeding of geese in the doses of 0.5, 1.0, and 1.5% of the dry matter led to an increase in geese live weights up to 11.1% in comparison with the control group. Weights of eviscerated carcasses were also more than in the control group, and meat yield was up to 2.5% higher. In goose meat, the toxic chemical elements content, e.g. cadmium, lead, and nickel, was significantly lower than the permissible amounts, less than 0.02 mg/kg. Zinc content decreased by 6.7-17.1% and copper content by 30.3-42.4%, providing the production of high-quality, environmentally friendly poultry meat products. Disciplinary: Agricultural and Animal Sciences, Biology, Biotechnology, Ecology, Veterinary Medicine, Chemistry. (c) 2020 INT TRANS J ENG MANAG SCI TECH.