There were no significant effect of zinc sources on disappearence rate of diet nutrients CP>0.05).
锌的添加及类型对肉牛日粮养分表观消化率无明显作用（P＞0.05）。
Results: All involved lone shouted expanded and complcated ly decrease or disappearence of nearly hole, fissure or cavity.
结果：为全部病例均有患骨的膨胀，并可伴有正常孔、裂、窦腔的变小或消失。
Results: All involved lone shouted expanded and complcated ly decrease or disappearence of nearly hole, fissure or cavity.
结果：为全部病例均有患骨的膨胀，并可伴有正常孔、裂、窦腔的变小或消失。
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