采用PCR-SSCP技术分析了牛类胰岛素生长因子结合蛋白3（IGFBP3）基因在南阳牛、鲁西牛和中国西门塔尔牛3个牛品种中的遗传多态性。

The polymorphism of the insulin-like growth factor binding protein 3 (IGFBP3) gene in Nanyang cattle, Luxi cattle and Chinese Simmental was analyzed by PCR-SSCP.

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对农户饲养的黎平黄牛及其与西门塔尔牛、安格斯牛、利木赞牛的杂交F_1代的初生、6月龄、12月龄、18月龄、24月龄的体重、体尺进行了测定，结果表明；

The body weight and body sizes of F1 crossbreds of Liping yellow cattle with Simmental or Angus or Limousin at 0,6,12,18,24 month-old were measured.

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