Influence of different levels and sources of selenium in piglet mixed fodder on productivity and heavy metals content in the slaughter products

Abstract

An analysis of literary sources suggests the feasibility of using selenium-containing drugs in animal races to reduce the transformation of mercury, cadmium and lead into products. This allows you to increase productivity farm animals and quality of slaughter products. Administration of different levels (0.2, 0.3, 0.4 mg / kg of dry matter) and sources of selenium (selenite sodium, Sel-Plex) in full-fodder feed showed that the most effective for young pigs was the organic compound selenium. Additional addition to feed to achieve a total selenium content of 0,3-0,4 mg / kg of dry matter contributed to a decrease in the concentration of cadmium by 29.7-35.1%, and mercury - by 18.8-19.2% in meat. The tendency towards reduction of lead content in slaughter products of experimental groups. Use of sodium selenite, compared to Organic compound has a less positive effect on the productivity and quality of pig meat.