中国荷斯坦牛初配年龄对繁殖性能的影响  

Effect of the Age of First Mating on Reproductive Performance of Chinese Holstein

作　　者：毛永江[1] 杨章平[1] 施学奎[1] 尹召华 陈宝林 王杏龙[1] 

机构地区：[1]扬州大学动物科学与技术学院,江苏扬州225009 [2]扬州大学实验农牧场,江苏扬州225009

出　　处：《中国畜牧杂志》2010年第7期52-54,共3页Chinese Journal of Animal Science

基　　金：国家高新技术研究发展计划(863)(2008AA10Z144);江苏省高校自然科学基础研究项目(08KJB230005);江苏省科技支撑计划项目(BE2008302-2);江苏省农业三项工程项目[SX(2008)082]

摘　　要：利用扬州大学农牧场979头第1胎中国荷斯坦牛初配年龄及其繁殖性能数据,分析不同初配年龄对受胎情期数、产犊到受胎时间间隔、产犊间隔、妊娠期等指标的影响。结果表明:初配年龄显著影响受胎情期数和妊娠期长短(P<0.05),18月龄配种母牛受胎情期数和妊娠期均最低,初配年龄对产犊到受胎时间间隔和产犊间隔均无显著影响(P>0.05),但随着初配月龄的不断增加,奶牛产犊到受胎时间间隔和产犊间隔有逐渐降低的趋势。The effects of the age of first mating on breedin index, the interval from calving to conception, cavling interval and gestation were analyzed using the data of reproductive records in first parity for 979 Chinese Holstein in Experimental Farm of Yangzhou University. The results showed that the age of first mating had significant effects on breedin index and gestation（P 〈0.05） and the cows mated firstly in 18 months had the lowest breedin index and gestation. The age of first mating had no significant effects on the interval from calving to conception and cavling interval（P 〉 0.05）, but with the increasing of the age of first mating, the interval from calving to conception and cavling interval show the tendency of decrease.

关 键 词：初配年龄 繁殖性能 中国荷斯坦牛 

分 类 号：S823.3[农业科学—畜牧学]