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当前位置: 首页 > 文章 > 杜泊绵羊与小尾寒羊杂种优势利用研究 山东农业科学 2009 (1) 103-106
Position: Home > Articles > Study on Heterosis Utilization of Dorpor Sheep with Small-tail Han Sheep Shandong Agricultural Sciences 2009 (1) 103-106

杜泊绵羊与小尾寒羊杂种优势利用研究

作  者：
王金文;崔绪奎;张果平;杨培企;王德芹;李焕玲;黄庆华
单  位：
宁夏同心白绒山羊种羊场;山东省农业科学院畜牧兽医研究所
关键词：
杜泊绵羊;小尾寒羊;生产性能;多胎基因;杂种优势
摘  要：
选杜寒F1、杜寒F2、杜寒F3、杜泊羊以及小尾寒羊(公母羔)并随机分组,研究探讨相同饲养条件对不同杂交种群生长发育和繁殖力的影响。结果表明:杜寒F1初生重公母羔平均为3.91 kg,略低于父本杜泊羊(P>0.05);初生至断奶平均日增重318 g,高于母本小尾寒羊(P<0.01)。育肥期杜寒F1、杜寒F2和杜寒F3平均日增重分别比小尾寒羊提高40.99%、26.13%和22.52%(P<0.01);3个杂交代次间增重接近,依次是杜寒F1>杜寒F2>杜寒F3。杜寒F1母羊产羔率比杜泊羊提高40个百分点(P<0.01);多胎基因(FecB)检测结果和实际产羔情况基本一致(杜寒F1>杜寒F2>杜寒F3)。杜寒1~3代经产母羊体重、体高、体长、胸围指标均高于杜泊羊(P>0.05)。杜寒F3体型外貌优于杜寒F2和杜寒F1,建议杜寒F1用于生产肥羔;可进一步探讨用带多胎基因的杜寒F3作父本,与杜寒F2实施横交,培育杜寒肉羊新品系。
译  名：
Study on Heterosis Utilization of Dorpor Sheep with Small-tail Han Sheep
作  者：
WANG Jin-wen1,CUI Xu-kui1,ZHANG Guo-ping1,YANG Pei-qi2,WANG De-qin1,LI Huan-ling1,HUANG Qing-hua1(1.Institute of Animal Science and Veterinary Medicine,Shandong Academy of Agricultural Sciences,Jinan 250100,China;2.Ningxia Tongxin White Goat Breeding Farm,Tongxin 751300,China)
关键词：
Dorpor sheep;Small-tail Han sheep;Production performance;Fecundity gene;Heterosis
摘  要：
In order to study the effect of the same feed condition on growth performance and fertility of different hybrid populations,the crossbred F1,F2 and F3 of Dorpor sheep with small-tail Han sheep,Dorpor sheep and small-tail Han sheep(ram and ewe lambs)were split into several groups at random.The results indicated that the average birth weight of crossbred F1 was 3.91 kg and lower than that of the male parent(P>0.05);the average daily gain from birth to weaning was 318 g and higher than that of the female parent(P<0.01).In fattening period,the average daily gain of crossbred F1,F2 and F3 were 40.99%,26.13% and 22.52% respectively more than that of small-tail Han sheep(P<0.01);among the three crossbreds,the daily gain was similar and showed F1>F2>F3.The lamb rate of crossbred F1 was 40 percent points higher than that of Dorpor sheep,and the testing result of fecundity gene(FecB) was similar to the actual lamb number.The body weight,body high,body length and chest girth of the F1~F3 multiparous ewes were all higher than those of Dorpor sheep(P>0.05).The whole body conditions of crossbred F3 were superior to F1 and F2,so it was suggested that crossbred F1 should be used for fat lamb production,and crossbred F3 with FecB gene could be crossed with F2 ewes to breeding new Dorpor-Han mutton sheep.

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