Animal welfare and killing for disease control

Marien A. Gerritzen; Mohan A.B. Raj

Animal welfare and killing for disease control

In: Welfare of production animals: assessment and management of risks

Authors:

Marien A. Gerritzen

Marien A. Gerritzen ¹Animal Sciences Group of Wageningen UR, Department of Animal husbandry, Division Animal Welfare & Health, P.O. Box 65, 8200 AB Lelystad, the Netherlands; marien.gerritzen@wur.nl

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Mohan A.B. Raj

Mohan A.B. Raj ²Division of Farm Animal Science, School of Clinical Veterinary Science, University of Bristol, Langford, Bristol BS40 5DU, United Kingdom

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Type:: Chapter

Pages:: 191–203

DOI:: https://doi.org/10.3920/9789086866908_011

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Killing animals for disease control is a complex process that involves different interests and conflicts between various stakeholders. Main objective of killing animals from an epidemic view point is to prevent the disease from spreading. Second interest is human safety, minimal human-animal interaction is preferred. A third important interest is animal welfare. Animals are killed on farms, mostly with the minimum of facilities and resources required to completely protecting animal welfare during killing. When it concerns poultry, it is preferred to kill all birds in their housings without catching or handling. Gassing whole houses is the most common practice for whole house killing of poultry. Advantages of this approach include large capacity, minimal human-animal interaction and a minimal use of personnel. However, whole house killing is in many situations not possible and handling live animals can in these situations not be prevented. Killing methods for pigs and ruminants can be grouped into three categories: mechanical (free bullet, penetrating and non-penetrating captive bolts), electrical and gas mixtures. A potential animal welfare benefit of using gas mixtures, in comparison with the mechanical and electrical methods, is that they could be administered to small groups of animals contained in cages or crates without the need for restraint. Some of the animal welfare issues associated with the use of these methods on farms are highlighted in this paper.

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Welfare of production animals: assessment and management of risks

Series: ECVPH Food safety assurance, Volume: 5

E-Book ISBN:: 9789086866908

Publisher:: Brill | Wageningen Academic

Print Publication Date:: 30 Oct 2009

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Animal welfare and killing for disease control

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Welfare of production animals: assessment and management of risks

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