摘要
用奶牛性控冻精共授配奶牛948头,妊娠893头,情期受胎率平均为67.37%;母犊率达到93.95%,普通冻精产母犊率51.63%,差异极显著(P<0.01)。对其中20头母犊出生时的体重、体尺进行了测定,并与常规冻精所产母犊的生长发育指标进行比较,两者差异不显著(P>0.05)。试验表明,奶牛性控冻精对实现规模化奶牛场的快速扩群和品质提升具有较高的实用价值。
948 dairy cattle were fertilized using sex - controlled technique, 893 dairy cattle was pregnant, average pregnancy rate of sexual period was 67.37% , female calf rate reached 93.95% , female calf rate was 51.63% using regular frozen semen technique, there was significant difference between them （ P 〈 0.01 ）. Birth body weight and size of 20 female calves were measured, there was no significant difference between sex - controlled frozen semen and regular frozen semen technique （ P 〉 0.05 ）. The results showed that dairy cattle sex - controlled frozen semen technique has higher practical value for realizing rapid enlargement and quality upgrading in scale dairy farms.
出处
《畜牧兽医杂志》
2011年第1期31-32,共2页
Journal of Animal Science and Veterinary Medicine
关键词
奶牛
性控冻精
情期受胎率
母犊率
dairy cow
sex - controlled frozen semen
pregnancy rate of sexual period
female calf rate
