| 荷斯坦奶牛改良黄牛的效果分析 |
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| 引用本文： | 马彦男,刘哲,吴建平,张利平,杨联,朱静.荷斯坦奶牛改良黄牛的效果分析[J].甘肃农业大学学报,2010,45(1). |
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| 作者姓名： | 马彦男 刘哲 吴建平 张利平 杨联 朱静 |
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| 作者单位： | 甘肃农业大学动物科学技术学院,甘肃,兰州,730070 |
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| 摘 要： | 为研究荷黄级进杂交后代在生长发育和泌乳性能方面与纯种荷斯坦奶牛的异同,将32头奶牛根据荷斯坦牛血统含量分为3个组,测定了各组的不同月龄体重、体尺指标和泌乳性能.结果表明:随着荷黄级进杂交代数的提高,杂种后代在生长发育和泌乳性能方面与纯种荷斯坦牛的差距逐渐缩小;荷黄级进杂交三代与纯种荷斯坦牛305d产奶量、乳脂率、15月龄体重、体高、胸围、腹围差异不显著,改良效果明显,适宜在北方农区生产体系中推广养殖.
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| 关 键 词： | 荷斯坦牛 黄牛 杂交 血统含量 生产性能 |
Effects of improving performance of yellow cattle crossed with proved Holstein |
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| MA Yan-nan,LIU Zhe,WU Jian-ping,ZHANG Li-ping,YANG Lian,ZHU Jing.Effects of improving performance of yellow cattle crossed with proved Holstein[J].Journal of Gansu Agricultural University,2010,45(1). |
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| Authors: | MA Yan-nan LIU Zhe WU Jian-ping ZHANG Li-ping YANG Lian ZHU Jing |
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| Institution: | College of Animal Science and Technology;Gansu Agricultural University;Lan zhou 730070;China |
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| Abstract: | Thirty-two dairy cows were divided into three groups according to the various blood line of Holstein Friesian to compared the difference between pured Holstein and descendants by grading hybridization from Yellow cattle and Holstein proven sire in growth and milk performance.Body weight,ruler index of various month-old cows and milk performance were measured respectively.The results showed that the growth and milk performance gap between pured Holstein and descendants by grading hybridization were reduced g... |
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| Keywords: | Holstein cows yellow cattle corssing blood line performance |
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