Since 1998, frozen semen of Charolais were introduced from Xuchang and Luoyang bull station to improve Jiaxian Red Cattle.

 
  • 自 1 998年以来 ,先后从许昌 ,洛阳种公牛站取回夏洛来冻精颗粒 ,用以改良郏县红牛。
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