Onyshchenko O. Influence of different levels and sources of selenium on the exchange of substances and reproduced ability of repair pigs.

In two long science-economical and production experiences and physiological-biochemical research the effectiveness of using of different levels (0,2; 0,3 and 0,4 mg/kg of dry substance) and springs (selenit natrium, selenium meteonin and sel-pleks) of selenium in ration of repair pigs rearing from 2,5- month-old to pigs with piglets was studded. As the result, was noted increasing the level of selenium in ration to 0,2; 0,3 and 0,4 mg/kg of dry substance has not influence on consumption a fodders as repair pigs as the adult pigs. This way, in period of rearing repair pigs from 2,5 - month-old to farrow on one head was spend, according to groups, 928,7; 928,1 and 928,2 oppose 931,5 feed units, and lactation sow for 60 days 409,8 - 411,0 oppose 414,0 feed units in control. With it researching levels of selenium promoted increasing in animals of experience groups coefficients of digestion nutritious substance, balance of nitrogen and mineral elements (calcium, phosphorous, selenium), and noticeable improve hematologic indicators (contents in blood of erythrocytes and hemoglobin, general proteins and ?-globulin's faction, sulfur, iron, copper, zinc, manganese and selenium, vitamin E, intensified catalasac and perocsidasic activity). This is in turn positively worked on intensively of growth and reproduction functions of repair pigs.