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使用机械非穿透式固定螺栓装置对新生羔羊实施安乐死

The Use of a Mechanical Non-Penetrating Captive Bolt Device for the Euthanasia of Neonate Lambs.

作者信息

Grist Andrew, Lines Jeff A, Knowles Toby G, Mason Charles W, Wotton Stephen B

机构信息

School of Veterinary Sciences, University of Bristol, Langford House, Langford, Bristol BS40 5DU, UK.

Silsoe Livestock Systems, Wrest Park, Silsoe, Bedford MK45 4HR, UK.

出版信息

Animals (Basel). 2018 Apr 2;8(4):49. doi: 10.3390/ani8040049.

DOI:10.3390/ani8040049
PMID:29614834
原文链接:https://pmc.ncbi.nlm.nih.gov/articles/PMC5946133/
Abstract

A non-penetrating captive bolt device, powered by a 1-grain 0.22″ cartridge delivering a calculated kinetic energy of 47 Joules was tested as a euthanasia method on 200 neonate lambs of 4.464 kg (SD (Standard deviation) ± 1.056) mean dead weight, to assess effectiveness and shot position. Every lamb (n = 200) was effectively stunned when the weapon was applied powered by a brown, 1-grain cartridge but 10/200 (5%) of the lambs displayed rhythmic or agonal breathing and were subsequently euthanased using euthatal (Merial, UK, GTIN: 03661103015550). Evaluation of the method was conducted using behavioural indicators of brain dysfunction followed by post-mortem examination of the heads. A second trial was conducted using a higher velocity 1.25-grain cartridge and a specific shot position on 48 lambs (mean dead weight = 6.21 kg, SD ± 1.24) averaging 5 days old. One hundred percent of the lambs in the second trial were immediately stun-killed. Given this complete kill rate and the sample size of the study, the study provides a statistical 95% confidence interval of 92.6% to 100%. The use of the Accles & Shelvoke “CASH“ Small Animal Tool (Birmingham, UK) can therefore be recommended for the euthanasia of neonate lambs with a 1.25-grain cartridge and a specific shooting position.

摘要

一种非穿透式栓式击晕设备，由一粒0.22英寸、含药量1格令的子弹提供动力，计算得出的动能为47焦耳，该设备作为一种安乐死方法，在200只平均死亡体重为4.464千克（标准差（SD）±1.056）的新生羔羊身上进行了测试，以评估其有效性和射击位置。当使用褐色、含药量1格令的子弹为武器提供动力时，每只羔羊（n = 200）均被有效击晕，但有10/200（5%）的羔羊出现有节律的或濒死呼吸，随后使用安乐泰（英国梅里亚公司，GTIN：03661103015550）实施安乐死。使用脑功能障碍的行为指标对该方法进行评估，随后对头部进行尸检。第二项试验使用了更高速度、含药量1.25格令的子弹以及特定射击位置，对48只平均年龄为5天、平均死亡体重为6.21千克（标准差±1.24）的羔羊进行测试。第二项试验中的羔羊100%立即被击晕致死。鉴于这一完全致死率以及研究的样本量，该研究得出的95%统计学置信区间为92.6%至100%。因此，推荐使用阿克斯&谢尔沃克“现金”小型动物工具（英国伯明翰），搭配含药量1.25格令的子弹及特定射击位置，对新生羔羊实施安乐死。

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本文引用的文献

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The Use of a Non-Penetrating Captive Bolt for the Euthanasia of Neonate Piglets.使用非穿透式固定螺栓对新生仔猪实施安乐死
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Consciousness, unconsciousness and death in the context of slaughter. Part I. Neurobiological mechanisms underlying stunning and killing.宰杀背景下的意识、无意识和死亡。第一部分。致昏和宰杀的神经生物学机制。
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