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Using science to support ethical decisions promoting humane livestock slaughter and vertebrate pest control

Published online by Cambridge University Press:  11 January 2023

DJ Mellor  and
KE Littin
DJ Mellor*
Affiliation:
Animal Welfare Science and Bioethics Centre, Massey University, Palmerston North, New Zealand
KE Littin
Affiliation:
Animal Welfare Science and Bioethics Centre, Massey University, Palmerston North, New Zealand
*
* Contact for correspondence and requests for reprints: D.J.Mellor@massey.ac.nz
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Abstract

Ethical principles guide decisions about what we consider to be right or wrong proposals and actions, so that when value judgements are made these engage us in ethics. Ethical thinking is clearly relevant to decisions about the way we treat animals, and such thinking has led to the commonly held view that animal use by people is acceptable provided that such use is humane. The ethical requirement that we treat animals humanely means that we must minimise the harms we do to all animals in our care or under our control. Accordingly, we must assess what harms are done to the animals, how bad each harm is in terms of its intensity and duration, what methods are available or can be developed to minimise each harm, and the relative effectiveness of those methods of harm minimisation. We must also seek to use the most humane methods currently available that can be practically applied. Ethically driven scientific evaluations of this sort have improved the humaneness of livestock slaughter and vertebrate pest control. For instance, detailed studies of different pre-slaughter stunning methods have validated their use to pre-empt the pain and distress that otherwise conscious animals would experience during the fatal neck cut and the short period of consciousness (sensibility) that follows it Likewise, reducing injuries caused by restraint traps has improved the humaneness of this vertebrate pest control method, and comparing the effects of different poisons has allowed the least humane ones to be identified. Difficult questions nevertheless remain at the problematic interface between quantitative scientific observations and their interpretation regarding the suffering that animals may experience, as well as questions about the relativities of different types of suffering.

Keywords

animal welfareethicshumane pest controlhumane slaughterminimising harmscientific assessment of harm
Type
Research Article
Information
Animal Welfare , Volume 13 , Issue S1: Science in the Service of Animal Welfare: Proceedings of the UFAW International Symposium, Edinburgh, 2-4 April 2003 , February 2004 , pp. S127 - S132
Copyright
© 2004 Universities Federation for Animal Welfare

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