Reproductive abilities of pigs when using new standards of protein nutrition | Воспроизводительные способности свиней при использовании новых норм энерго-протеинового питания
2011
Linkevich, S.A. | Linkevich, E.I. | Zubova, T.V. | Shejko, E.I. | Budevich, A.I., National Academy of Sciences. Scientific and Practical Center of Animal Breeding (Belarus)
In the conditions of the Republic of Belarus there was realized an improvement of a method of semen dilution of breeding boars on the basis of new feeding standards of breeding boars which were balanced according to metabolizable energy and irreplaceable amino-acids. This method could make it possible to increase the quantity of doses per one ejaculate, crop of live piglets per litter, that could promote the acceleration of selection process in swine breeding. Feeding with diets developed on new standards of feeding had positive effect on quality of sperm product. So the volume of boars' sperm of experimental group was increased at 9,5 %, sperm cells concentration - at 12,9% and common number of active sperm cells - at 25,3% compared to control group, fertilization rate of sows of experimental group was on the level of the control one, it means that decrease of number of active sperm cells in the amount of 2,5 mlrd did not have any effect on this value. Insemination of sows with decreased dose of active sperm cells didn't have any effect on multiple pregnancy, litter weight at birth and piglet weight at birth. But milkiness in experimental group was higher compared to the control one at 5,9%. On the basis of the researches conducted a method of boars' sperm dilution was developed allowing decreasing the number of active sperm cells in the amount of 2,5 mlrd.
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Эту запись предоставил National Academy of Sciences of Belarus