我有一头牛。5月9日晚上，她在没有任何帮助的情况下生下了小牛。早上她还好，但从晚上开始，她就无法闭上嘴，舌头也不能放进嘴里。第二天，她摔倒了，无法正常站立，整天坐着。晚上医生来了，给她静脉补钙，15分钟后她就站起来了。现在好多了，但仍然不能站立超过2-5分钟，腿也末端也已弯曲。

娜拉上周四在发情期间接受了绝育手术。她恢复得很好，没有感染，饮食也很好。她偶尔还会发现发情的迹象。这是正常的吗？

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Some days my dog itches his skin alot, I noticed that its mostly on the ride side of his body. Other days he wont itch at all. I bought him itch preventative shampoo but he still seems to itch sometimes. Not sure what I should do.

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