[Premixes with different levels of selenium in breeding boars diets]
2006
Golushko, V.M. | Linkevich, S.A. | Poznyak, V.V.,National Academy of Sciences. Scientific and Practical Center of Animal Breeding (Belarus)
The existing norm of selenium inclusion in premix for boars (20 mg on 1 kg) is insufficient for display of their maximal efficiency. The boars that received mixed fodder with premix, containing 30 mg of selenium in 1 kg, had the highest parameters of efficiency. Average quantity of sperm in one ejaculate was above on 17,2% (Р0,01), average quantity of the born pigs from one fruitfully inseminated sow - on 4,8% more, that at the boars, received premix about 20 mg in 1 kg of selenium. The greater content of aspartatami-notransferase in blood serum of boars, received mixed fodder about 0,3 mg/kg of selenium, and decrease of calcium in boars blood serum, received mixed fodder about 0,1 mg/kg of selenium, is revealed. Increase of productive action of mixed fodders, enriched by premix with content of 30 mg/kg of selenium, is economically expedient as thus the cost price of one semen dose decreases on 9,6%, the cost price of one fruitful insemination - on 12,8%, the additional profit, received in counting upon 1 boars, made 553,5 thousand rbl. (257,4 y.e.) in comparison with use of standard premix
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