| 中文名稱 | DOWNER COW，壓碎症候群 |
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| 英文名稱 | Downer cow, crush syndrome |
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| 建立日期 | 2007/11/01 |
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| 更新日期 | 2007/11/01 |
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| 中文描述 | 因為一些如乳熱症等原因倒臥的母牛體重造成肌肉和神經的二次性傷害是大部分「倒牛」（DOWNER COW）的原因。這稱為壓碎症候群。CPK和AST等肌肉酵素增加。由排除其他如骨折等因素診斷。驗屍時可發現肌肉壞死。好的土或砂質地面會使預後較佳。大部分倒牛都維持清醒警戒，但有位作者描述一種約2％接受乳熱症治療的母牛會變得呆滯並且在治療之後持續側躺1-2天的症候群。患病的「不清醒倒牛」可能發生黏液便，有時候有血便，並在側躺時經常呻吟（Fenwick et al.）；不清醒倒牛的治療並沒有成功。 |
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| 英文描述 | Secondary muscle and nerve damage due to the weight of a cow which becomes recumbent for other reasons such as milk fever is the cause of most 'downer' cows. This is called the 'crush syndrome'. Muscle enzymes such as CPK and AST are elevated. Dx by exclusion of other causes such as fractures. Muscle necrosis is seen at necropsy. Good footing on dirt or sand can improve the prognosis. While most downer cows remain alert, one author described a syndrome in which about 2% of cows treated for milk fever became dull and laterally recumbent 1-2 days after remaining down following treatment. Affected 'non-alert downer' cows can develop mucoid and sometimes bloody feces, and often moan when in lateral recumbency (Fenwick et al.); treatment for these non-alert downers has not been successful. |
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