| 西门塔尔牛级进杂交本地黄牛适宜代数的研究 |
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| 引用本文： | 李运起,孙少华,贾青.西门塔尔牛级进杂交本地黄牛适宜代数的研究[J].河北农业大学学报,2000,23(4):80-82,103. |
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| 作者姓名： | 李运起 孙少华 贾青 |
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| 作者单位： | 河北农业大学动物科技学院,河北保定 |
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| 摘 要： | 研究了级进杂交对不同代次的西杂犊牛体重和西杂母牛泌乳性能的影响。结果表明，与本地犊牛相比，Ｆ１－Ｆ４西杂犊牛的初生重分别提高７０．１５％、８０．１９％、９０．０７％、１００．４５％；６月龄分别提高４３．７３％、５３．６５％、６３．５９％、５０．８５％；１２月龄分别提高２２．９９％、４８．１１％、５５．８５％、４６．７３％，差异均极显著（Ｐ〈０．０５）。综合考虑，级进杂交进行到Ｆ３较为合适。
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| 关 键 词： | 级进杂交 西门塔尔牛 杂交代数 泌乳性能 |
| 文章编号： | 1000-1573(2000)04-0060-03 |
A study on suitable generation of upgrading indigenous cattle by simmental |
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| LI Yun-qi
,SUN Shao-hua
,JlA Qing
,SANG Run-zi
,TIAN Shu-jun
WUN Dong-peng.A study on suitable generation of upgrading indigenous cattle by simmental[J].Journal of Agricultural University of Hebei,2000,23(4):80-82,103. |
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| Authors: | LI Yun-qi SUN Shao-hua JlA Qing SANG Run-zi TIAN Shu-jun
WUN Dong-peng |
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| Institution: | LI Yun-qi
,SUN Shao-hua
,JlA Qing
,SANG Run-zi
,TIAN Shu-jun
(College of Animal Science and Technology, Agricultural University of Hebei, Baoding 071001, China)WUN Dong-peng
(Fengning Animal Husbandry Bureau, Fengning 068350, China) |
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| Abstract: | |
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| Keywords: | upgrading simmental crossing generation milk performance |
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