Reproductive ability of the new breed type of pigs 'Berezinsky' in the Belarusian meat breed | Репродуктивные качества нового заводского типа свиней 'Березинский' в белорусской мясной породе
2012
Shejko, I.P. | Pristupa, N.V., National Academy of Sciences. Scientific and Practical Center of Animal Breeding (Belarus)
In the conditions of the Republic of Belarus there was carried out a study of reproductive qualities of animals of the breed type Berezinsky in the Belarusian meat breed. As a result of the analysis of correlative interrelation between reproductive signs it was established that between a multiple pregnancy and litter weight at weaning period in all lines the interrelation was very low and the negative (–0,07 … - 0,14). It has been established that 'adding some blood' of the Landrace breed to sows of Belarusian meat breed, and then 'inbred rearing' in a range of generations allows to obtain highly productive genotypes, that are noted for high performance: multiple pregnancy - 11.1 animals, milking capacity - 55 kg and litter weight at weaning of 35 days - 87.2 kg. High correlation ratios have been registered between the number of weanling pigs and litter weight at weaning (0.68 - 0.78).
显示更多 [+] 显示较少 [-]