The Influence of Tail Biting on Performance of Fattening Pigs
The Influence of Tail Biting on Performance of Fattening Pigs
复制标题
咬尾对育肥猪生产性能的影响
DOI：
10.1186/bf03548085
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发表时间：
1996
影响因子：
2.1
通讯作者：
E. Lindahl
中科院分区：
文献类型：
--
作者：
P. Wallgren;E. Lindahl
与29只未被咬伤的猪相比，严重的咬尾可使8头肥猪在咬尾期间的日增重（DWG）降低25%。然而，在比较被咬过和未被咬过的猪的终生增重时，没有发现咬尾对体重的影响。令人感兴趣的是，严重受伤的猪在咬尾后连续3天静脉注射原卡因青霉素G，这可能表明，通过减少咬尾引起的感染的影响，以及饲养传统猪群中存在的其他感染，可以促进生长。尽管进行了青霉素治疗，但被尾巴咬伤的猪比未被咬伤的猪更容易出现脓肿。咬尾现象在两性之间的分布并不均匀，因为公母猪比后备母猪更容易被咬。在未被咬伤的猪中，公猪的生长速度也比后备猪快。事实上，当比较咬尾和不咬尾的母猪时，咬尾对DWG的负面影响不仅显示在咬尾期间，而且还可以监测到从该时期到屠宰的DWG减少了11%，在整个生命周期中减少了5%（咬尾的母猪太少，无法进行统计计算）。这些结果清楚地表明，尽管青霉素治疗，咬尾仍影响其一生的生长速度。然而，应该强调的是，在评估屠宰场数据时，可能无法监测到这种减少的寿命DWG，因为在这些材料中可能不知道猪的性别分布。
In comparison to 29 non bitten animals, severe tail biting was found to decrease the daily weight gain (DWG) by 25% in 8 fattening pigs during the period of biting. However, when comparing the weight gain of the lifetime between bitten and non bitten pigs, no influence of the tail biting was found. It is of interest that severity wounded pigs were parenterally treated with prokainpenicillin G for 3 consecutive days in connection with the tail biting, which could be suggested to promote the growth by reducing the influence of infections gained by the tail biting as well as of other infections present in herds rearing conventional pigs. Despite penicillin treatment, abscesses were more frequently recorded in tail bitten pigs than in non bitten animals. The tail biting was not equally distributed between the sexes, as barrows were more frequently bitten than gilts. Among the unbitten pigs, barrows were also found to grow faster than gilts. Indeed, when comparing tail bitten and non bitten barrows, a negative influence of tail biting on DWG was not only shown during the period of biting, but could also be monitored as a reduced DWG from that period until slaughter by 11% and during lifetime by 5% (the tail bitten gilts were too few to allow statistical calculations). These results clearly indicate that tail biting affects the growth rate of the lifetime despite penicillin treatment. However, it should be stressed that this decreased lifetime DWG may not be monitored when evaluating abattoir data because the sex distribution of the pigs may not be known in such materials.