冷配西门塔尔杂种犍牛与本交杂种犍牛屠宰对比试验
랭배서문탑이잡충건우여본교잡충건우도재대비시험
Comparative Slaughter Test on Bullock of F2 Crossbreeding From Simmental and Mongolian Cattle with Frozen and Natural Mating
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