摘要
利用京海黄鸡AA、BB、CC、WW 4个肉鸡品系和京海黄鸡(JJ),通过不完全双列杂交法,组成包括纯繁在内的9个组合,测定1～10周龄各周龄体重、10周末饲料报酬和成活率,推算其杂种优势率。结果表明:AA、BB、CC、WW系作为父本使用时,BJ和WJ组合生长速度优于AJ和CJ组合,AJ组合饲料报酬最好,为2.66:1;WJ组合其次,为2.67:1;CJ组合最差,为2.79:1。4个杂交组合中,BJ组合成活率为98.06%,杂种优势率最高,为6.07%;AJ组合成活率杂种优势率最低,为1.33%。
Nine possible combinations including pure strains mating and cross mating were made among AA,BB,CC,WW strain and Jinghai Yellow chicken were used to analyze the heterosis of body weights from 1 to 10 weeks,feed conversion efficiency and the survival rate after 10 weeks.The results showed that,as for grow rate,BB and WW were more fitful than AA and CC when used as a paternal line,and feed conversion efficiency of AJ was better than that of WJ and CJ,with the value of 2.66∶1,2.67∶1 and 2.79∶1,respectively.Among the four crosses,the combination BJ with survival rate of 98.06%,has the hightest value of survival rate heterosis（6.07%）,and survival rate of AJ was the worst.
出处
《扬州大学学报（农业与生命科学版）》
CAS
CSCD
北大核心
2011年第3期30-33,共4页
Journal of Yangzhou University：Agricultural and Life Science Edition
基金
江苏省"十一五"科技攻关项目(BE2009331)
关键词
京海黄鸡
不完全双列杂交
体重
成活率
饲料报酬
杂种优势
Jinghai yellow chicken
incomplete diallel crossing
body weight
survival rate
feed conversion efficiency
heterosis
