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| 澳系进口荷斯坦牛初配月龄对其繁殖性能的影响 | |
| 引用本文： | 刘坤,陈亮,毛永江,杨章平,王杏龙,杨利国.澳系进口荷斯坦牛初配月龄对其繁殖性能的影响[J].中国奶牛,2011(24):30-33. |
| 作者姓名： | 刘坤 陈亮 毛永江 杨章平 王杏龙 杨利国 |
| 作者单位： | 1. 南京农业大学动物医学院,南京210095／上海牛奶集团海丰奶牛场有限公司,大丰224100 2. 上海牛奶集团海丰奶牛场有限公司,大丰,224100 3. 华中农业大学动物遗传育种与繁殖教育部重点实验室,武汉430070／扬州大学动物科学与技术学院,扬州225009 4. 扬州大学动物科学与技术学院,扬州,225009 5. 华中农业大学动物遗传育种与繁殖教育部重点实验室,武汉,430070 |
| 基金项目： | 奶牛产业技术体系，农业部公益性行业(农业)科研专项课题，江苏省科技支撑计划 |
| 摘 要： | 本研究利用海丰奶牛场有限公司2009年引进的5 059头澳系进口荷斯坦牛初配月龄及其繁殖性能的数据,分析了不同初配月龄对第二胎受胎情期数、产后第一次配种时间、产犊到受胎时间间隔的影响。结果表明,初配月龄显著影响受胎情期数（0.01 |
| 关 键 词： | 澳系进口荷斯坦牛 初配月龄 繁殖性能 |
The Effect of the Age of First Mating on Reproductive Performances for Holstein Imported from Australia in China |
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| Institution: | LIU Kun,CHEN Liaug, MAO Yong-jiang, YANG Zhang-ping, WANG Xing-long, YANG Li-gun ( 1. Animal Veterinary College, Nanjing Agricultural University, Nanjing 210095; 2. Haifeng Dairy Cattle Farm, Shanghai Dairy Group, Dafeng 224100; 3. China Edueation Ministry＇s Key Laboratory in Agricultural Animal Genetics, Breeding and Reproduction, College of Animal Science and Technology, Huazhong Agrieuhural University, Wuhan 430070; 4. Animal Science and Technology College, Yangzhou University, Yangzhou 225009) |
| Abstract: | The effects of the age of first mating on breeding index, the interval from calving to first service, the interval from calving to conception were analyzed using the data of reproductive records in first parity for 5 059 Holstein imported from Australia in 2009 in Haifeng Dairy Cattle Farm, Jiangsu Pro. The results showed that the age of first mating had significant effects on breeding index （0.01 〈P〈0.05） and the interval from calving to first service as well as the interval from calving to conception at P〈0.01. With the delay of the age of first mating, the interval from calving to first service and the interval from calving to conception showed the tendency of shortening. The optimal age of first mating was from 14 to 15 months for Holstein cattle imported from Australia in Haifeng Dairy Cattle Farm based on all information, and these resuhs provided useful information tor the reprnduction management in dairy cattle farm in this region. |
| Keywords: | Holstein imporled from Australia The age of first mating Reproductive performances |
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