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PRODUCTIVITY OF RABBITS AND BALANCE OF CALCIUM AND PHOSPHORUS IN THEIR BODY BY FEEDING DIFFERENT SOURCES OF SELENIUM
The analysis of literary sources testifies to insufficient content of Selenium in forage. Therefore some extra Selenium-containing compounds have to be added to the rabbits’ diet so that the desired rate of Selenium could be reached. The data, received from in-vivo research showed that of all used sources of Selenium (sodium selenite, sodium selenate, selenomethionine and Sel-Plex) the most effective for young rabbits was Sel-Plex. Inclusion of Sel-Plex into diet to reach Selenium level 0,2 mg/kg of dry matter led to the live weight increase of experimental rabbits by 4,7 % with a simultaneous decrease by 2,9 % of ra feed portion per 1 kg of body weight increase. Using Sel-Plex instead of sodium selenite for young rabbits leads to a tendency to increase the absorption of Calcium and Phosphorus into the rabbits body. The use of inorganic Selenium salts, as compared with organic, has a less positive influence on the productivity of rabbits.
Key words: Selenium, Calcium, Phosphorus, rabbit, productivity, sodium selenite, sodium selenate, selenomethionine, Sel-Plex, live weight, feed.
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