摘要
采用数量遗传方法和分子生物技术结合选育大约克夏母系,效果较为显著。核心群内已淘汰氟烷应激敏感基因;与零世代相比,Ⅱ世代母猪的头胎产仔数增加0.88头,产活仔数增加0.80头,初生窝重提高2.67kg,差异极显著(P<0.01);21日龄平均窝重增加12.70kg,差异极显著(P<0.01),公母猪达100kg体重日龄分别缩短17.14d和14.62d,体型外貌基本一致。
To cultivate the hyperprolific Large White Dam Line, the combination of quantitative genetics and molecular biological technologies was used. The selection effect was significant after several generations, and the stress sensitive gene was eradicated from nucleus herd. Compared to the 0 generation, the litter size at first parity and number born alive increased by 0.88 and 0.80 at the second generation respectively ((P<0.05)), meanwhile, days at 100 kg of boars and sows reduced by 17.14 days and 14.62 days respectively (P<0.01), in addition, the uniformity of conformation was improved greatly.
出处
《江西农业大学学报》
CAS
CSCD
2004年第1期127-130,共4页
Acta Agriculturae Universitatis Jiangxiensis
基金
江西省农业厅和江西省教育厅项目资助(2003-73)
