咬尾
1. 疾病描述
原因：
會造成豬隻咬尾的原因相當複雜，任何會引起豬隻不安、恐懼或心理不平衡的因子都是造成咬尾的病因。
1.豬舍方面：條狀地面、無墊料地面、通風不良、太明亮的豬舍等咬尾發生率較高。
2.氣候與季節：溫差大的季節以及過冷或過熱的季節，咬尾的發生率也較高。
3.密飼、擁擠。
4.飼料方面：食用缺乏某種維生素、礦物質或蛋白質的飼料，限食，飼料槽擺放的位置不恰當或缺水等。
5.內外寄生蟲或潛在性疾病。
6.其他：任何會造成豬隻不安或不滿的緊迫因子。
年齡層：
好發於12～16週齡的肉豬，閹公豬的發生率約為雌豬的兩倍。
臨床症狀：
1.咬尾的豬多為發育差而具神經質者，爆發攻擊力強，多呈食慾不振，舉動不安，眼露兇光。
2.開始時以嘴含住被咬豬的尾巴，先是輕含然後拉扯，當尾巴被扯破流血後，血腥味會引來其他豬隻的吸舐或一再咬扯，造成尾巴愈來愈短，甚至整條尾巴被咬掉。
3.若不找出「兇手」豬加予隔離，往往會造成同欄全部豬隻尾巴被咬的後果。
4.被咬的尾巴傷口小，出血不多時，痊癒機會大；若受傷嚴重，出血多，會引起貧血虛弱。
5.受傷的尾巴若無有效的治療，很容易造成細菌感染，輕則尾部紅腫或化膿壞死，重則引發脊髓炎而癱瘓，甚至導致敗血症而死亡。
解剖病變：
1.胃炎
2.胃潰瘍
3.腸炎
感染性：
不會傳染到其他豬隻
會造成豬隻咬尾的原因相當複雜，任何會引起豬隻不安、恐懼或心理不平衡的因子都是造成咬尾的病因。
1.豬舍方面：條狀地面、無墊料地面、通風不良、太明亮的豬舍等咬尾發生率較高。
2.氣候與季節：溫差大的季節以及過冷或過熱的季節，咬尾的發生率也較高。
3.密飼、擁擠。
4.飼料方面：食用缺乏某種維生素、礦物質或蛋白質的飼料，限食，飼料槽擺放的位置不恰當或缺水等。
5.內外寄生蟲或潛在性疾病。
6.其他：任何會造成豬隻不安或不滿的緊迫因子。
年齡層：
好發於12～16週齡的肉豬，閹公豬的發生率約為雌豬的兩倍。
臨床症狀：
1.咬尾的豬多為發育差而具神經質者，爆發攻擊力強，多呈食慾不振，舉動不安，眼露兇光。
2.開始時以嘴含住被咬豬的尾巴，先是輕含然後拉扯，當尾巴被扯破流血後，血腥味會引來其他豬隻的吸舐或一再咬扯，造成尾巴愈來愈短，甚至整條尾巴被咬掉。
3.若不找出「兇手」豬加予隔離，往往會造成同欄全部豬隻尾巴被咬的後果。
4.被咬的尾巴傷口小，出血不多時，痊癒機會大；若受傷嚴重，出血多，會引起貧血虛弱。
5.受傷的尾巴若無有效的治療，很容易造成細菌感染，輕則尾部紅腫或化膿壞死，重則引發脊髓炎而癱瘓，甚至導致敗血症而死亡。
解剖病變：
1.胃炎
2.胃潰瘍
3.腸炎
感染性：
不會傳染到其他豬隻
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來源：財團法人農業科技研究院 財團法人農業科技研究院
肉豬，咬尾，倒地，側躺
肉豬，咬尾，倒地，側躺
來源：
情況嚴重的咬尾
情況嚴重的咬尾
來源：
咬尾照片
咬尾照片
來源：
咬尾照片
咬尾照片
來源：
減少咬尾的方式
減少咬尾的方式
來源：Viva UK
Did you know that at least 80 per cent of piglets are mutilated every year in Britain? How do we know? The pig industry admits it. Viva! recently filmed young piglets pulled out of their pens, having their back teeth cut off with pliers and their tails cut off with scissors. This despite routine mutilations supposedly being banned in the UK and Europe. Viva! has filmed the mutilation of piglets. It happens on hundreds of British farms every single day. Experts say that it causes needless pain and suffering -- yet it usually happens without anaesthetic. Ask yourself: would we allow human babies to be treated this way? The industry says that these mutilations are necessary to stop pigs attacking each other by tail biting and damaging their mother's teats. However, it is cramped factory farmed conditions that create these problems in the first place. Rules on so-called 'environmental enrichment' are a joke; with a farmer only needing to provide a football or chain hanging from the ceiling to remain within the law. Highly intelligent animals, pigs are driven to despair and sometimes madness in these barren conditions -- and the sow cannot escape from her piglets because she is trapped in a cage. It's a 'catch 22' and the animals are the ones that suffer. Help Viva! ban piglet teeth clipping and tail docking. Visit www.piggles.org.uk for more information. Check out www.viva.org.uk for help going veggie.
Did you know that at least 80 per cent of piglets are mutilated every year in Britain? How do we know? The pig industry admits it. Viva! recently filmed young piglets pulled out of their pens, having their back teeth cut off with pliers and their tails cut off with scissors. This despite routine mutilations supposedly being banned in the UK and Europe. Viva! has filmed the mutilation of piglets. It happens on hundreds of British farms every single day. Experts say that it causes needless pain and suffering -- yet it usually happens without anaesthetic. Ask yourself: would we allow human babies to be treated this way? The industry says that these mutilations are necessary to stop pigs attacking each other by tail biting and damaging their mother's teats. However, it is cramped factory farmed conditions that create these problems in the first place. Rules on so-called 'environmental enrichment' are a joke; with a farmer only needing to provide a football or chain hanging from the ceiling to remain within the law. Highly intelligent animals, pigs are driven to despair and sometimes madness in these barren conditions -- and the sow cannot escape from her piglets because she is trapped in a cage. It's a 'catch 22' and the animals are the ones that suffer. Help Viva! ban piglet teeth clipping and tail docking. Visit www.piggles.org.uk for more information. Check out www.viva.org.uk for help going veggie.
2. 診斷方式
診斷方法：
1.檢查現場供水設備。
2.臨床症狀。
3.解剖與鏡檢病變。
類症鑑別：
會造成豬隻神經症狀或癱瘓的各種疾病例如鏈球菌症、多發性漿膜炎、食鹽中毒、有機磷中毒等。
人畜共患影響：
無
1.檢查現場供水設備。
2.臨床症狀。
3.解剖與鏡檢病變。
類症鑑別：
會造成豬隻神經症狀或癱瘓的各種疾病例如鏈球菌症、多發性漿膜炎、食鹽中毒、有機磷中毒等。
人畜共患影響：
無
3. 治療方法
1.受傷的尾巴止血、清理、消毒或治療。
2.病豬集中隔離，妥善護理。
2.病豬集中隔離，妥善護理。
4. 預防措施
1.找出「兇手」豬加予隔離。
2.所有的仔豬行剪尾（斷尾長度約1/2或1/3)，可以防止日後發生咬尾。
3.針對前述各種可能發生的各種原因予以改善，可達預防效果。
2.所有的仔豬行剪尾（斷尾長度約1/2或1/3)，可以防止日後發生咬尾。
3.針對前述各種可能發生的各種原因予以改善，可達預防效果。