Năng suất sinh sản và sinh trưởng của đàn hạt nhân lợn Mẹo thế hệ II
The experiment was carried out in Nghe An Breeding Center in 2018 - 2020 to evaluate performance of Meo pig nucleus herds in the second generation as a basis for selective, multiply nuclear herds, provide gilts with good breeding tips for production. Experiment I was conducted to monitor a total of 20 sows; gilts and pregnant sows were randomly divided into 4 groups (corresponding to 4 replicates), each group consisted of 5 pigs; gestation period II to farrowing stage, raising 1 sow per lot; Experimental pigs are raised in barn with a yard, ensuring uniformity in age, weight and care and nurturing regime. Experiment II was conducted on 20 young boars and 60 gilts. The boars and gilts are randomly divided into 5 pigs/lot (corresponding to each lot are one replicate), the pigs are raised in barn with a yard, ensuring uniformity in age, weight and nurturing care; The follow-up time starts when the boars and gilts are 60 days old until they are 8 months old.
The results showed that the nuclear Meo pigs had first estrus age, first mating age, first farrowing age in generation II at 210.22; 241.15 và 355.21 days old, respectively. The number of newborns piglets/litter, number born alive/litter, number of weaned piglets/litter are from 8.18, 7.72 and 7.26 piglets, respectively. The newborn piglets weight/litter and weaning piglets weight/litter are 3.94 kg and 41.16 kg, respectively. The body weight of boar and gilt at 8 age month are 45.97 kg and 44.78 kg, respectively. The Meo pig nucleus herds have had good growth ability
