Effects of administration of a local anaesthetic and/or an NSAID and of docking length on the behaviour of piglets during 5 h after tail docking
Effects of administration of a local anaesthetic and/or an NSAID and of docking length on the behaviour of piglets during 5 h after tail docking
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DOI：
10.1016/j.rvsc.2016.08.001
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发表时间：
2016-10-01
影响因子：
2.4
通讯作者：
Thodberg, K.
中科院分区：
文献类型：
--
作者：
Herskin, M. S.;Di Giminiani, P.;Thodberg, K.
在许多国家，小猪被断尾以防止咬尾。本研究的目的是1）评价局部麻醉剂和/或NSAID减轻尾部对接引起的疼痛的疗效; 2）检查与对接长度的相互作用。在出生后2-4天通过热铁烧灼法对接的295头仔猪中，根据对接期间以及随后5小时的行为进行了检查。该研究涉及三个主要因素：局部麻醉剂（利多卡因）、NSAID（美洛昔康）和对接长度。将100%、75%、50%或25%的尾部留在仔猪身上。不考虑尾长，尾对接导致手术疼痛体征，可通过利多卡因给药减轻。预先使用美洛昔康不会影响手术疼痛的体征。结果表明，尾部对接导致整个5小时的观察期内的行为变化，表明这种管理程序的影响比先前提出的更持久，并表明对接长度可能会影响仔猪的手术后行为。通过使用目前的注射部位和剂量，局部麻醉剂和NSAID对尾对接诱导的术后行为变化均无显著影响。因此，如果要进行对接，需要进行更多的研究，以开发实用的方法来缓解农场仔猪疼痛。(C)2016爱思唯尔有限公司版权所有
In many countries, piglets are tail docked to prevent tail biting. The aim of this study was 1) to evaluate the efficacy of a local anaesthetic and/or NSAID to reduce pain caused by tail docking; and 2) to examine interactions with docking length. This was examined in 295 piglets docked by hot iron cautery 2-4 days after birth and based on behaviour during docking as well as the following 5 h. The study involved three main factors: local anaesthetic (Lidocain), NSAID (Meloxicam) and docking length. Either 100%, 75%, 50% or 25% of the tails were left on the body of the piglets. Irrespective of the tail length, tail docking led to signs of procedural pain, which could be reduced by administration of Lidocain. Preemptive use of Meloxicam did not affect the signs of procedural pain. The results show that tail docking led to behavioural changes throughout the 5 h observation period indicating that effects of this management routine are more persistent than earlier suggested, and suggesting that docking length may influence the post-surgical behaviour of piglets. By use of the present sites of injection and dosages, neither local anaesthetic nor NSAID had marked effects on post-surgical behavioural changes induced by tail docking. Hence, if tail docking is to be performed, more research is needed in order to develop practical methods for on-farm piglet pain relief. (C) 2016 Elsevier Ltd. All rights reserved.