ЭФФЕКТИВНОСТЬ ПРИМЕНЕНИЯ СПЕЦИАЛИЗИРОВАННЫХ КОМПЬЮТЕРНЫХ ПРОГРАММ В МЯСНОМ СКОТОВОДСТВЕ

Abstract

The article deals with new data on meat production development and lumpy semi-finished products output in Kalmyk breed young cattle descending from improver bulls and from common producers selected by progeny quality assessed by index score calculated by specifically developed software package. Progeny was associated with lines by blood group analysis. It was found that both bulls and heifers in all test groups at age of 15 months excelled elite-record class requirements by 5 - 13% in rigorous arid steppe climate. However progeny from improver bulls exceeded their mates from common producers by 28 - 29 kg (7 - 8%) in overall live weight gain. Furthermore, they had 1% higher slaughter yield, 24% heavier carcass, 21 kg more muscle tissue yield, and by 5 - 10% (P>0.95) heavier lumpy semi-finished products. Cost effectiveness of rearing bull calves from improver bulls was 10.5% against 2.5% in common producers’ progeny. The results show that scoring of stud bulls by their progeny quality in meat cattle farming will lead to increasing the number of improver bulls capable of propagating high growing capacity and improved morphology of carcass to their progeny, and to better overall cost-effectiveness of beef farming.