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Current and novel methods for killing poultry individually on-farm

  • J. SPARREY (a1), D.A. SANDERCOCK (a2), N.H.C. SPARKS (a2) and V. SANDILANDS (a2)


This review examines methods for culling small numbers of poultry on farm, considering both common techniques and methods that are yet to be tested on poultry. The aim of this review is to inform the design of experiments that will assess the pros and cons of culling techniques. The methods reviewed include manual and mechanical cervical dislocation, crushing methods (such as burdizzos or pliers), percussive devices, blunt force trauma and a brain-stem piercing device. Previous work on these approaches, of which there is a limited dataset, has relied on behavioural and brain activity as proxy measures of unconsciousness (insensibility) and death, however there remains some uncertainty as to when birds can be considered unequivocally insensible. These factors will be considered when deciding which of the methods will be recommended to be taken forward for further assessment.


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ACCLES and SHELVOKE (2010) Cash Poultry Killer Model CPK200 Product Data Sheet. Accles and Shelvoke, April 2010.
ANIMAL HEALTH AUSTRALIA (2006) Operational procedures manual: Destruction of animals (Version 3.0). Australian Veterinary Emergency Plan (AUSVETPLAN), Edition 3, Primary Industries Ministerial Council, Canberra, ACT. 2006.
AVMA (2007) AVMA guidelines on euthanasia. Journal of Veterinary Medical Association 218: 669-696.
BARNETT, J.L., CRONIN, G.M. and SCOTT, P.C. (2007) Behavioural response of poultry during kosher slaughter and their implications for birds’ welfare. Veterinary Record 160: 45-49.
CARTNER, S.C., BARLOW, S.C. and NESS, T.J. (2007) Loss of cortical function in mice after decapitation, cervical dislocation, potassium chloride injection, and CO2 inhalation. Comparative Medicine 57: 570-573.
CLOSE, B., BANISTER, K., BAUMANS, V., BERNOTH, E.-M., BROMAGE, N., BUNYAN, J., ERHARDT, W., FLECKNELL, P., GREGORY, N., HACKBARTH, H., MORTON, D. and WARWICK, C. (1997) Recommendations for euthanasia of experimental animals: Part 2. Laboratory Animals 31: 1-32.
COENEN, A.M.L., LANKHAAR, J., LOWE, J.C. and MCKEEGAN, D.E.F. (2009) Remote monitoring of electroencephalogram, electrocardiogram, and behavior during controlled atmosphere stunning in broilers: Implications for welfare Poultry Science 88: 10-19.
DAWSON, M.D., JOHNSON, K.J., BENSON, E.R., ALPHIN, R.L., SETA, S. and MALONE, G.W. (2009) Determining cessation of brain activity during depopulation or euthanasia of broilers using accelerometers. Journal of Applied Poultry Research 18: 135-142.
DEFRA (2000) A test of the effectiveness of the poultry casualty slaughter device for use in ducks and geese. (DEFRA Project MH0117).
DEFRA (2014) Final report on the welfare costs and benefits of existing and novel on-farm culling methods of poultry (MH0145).
DENNY-BROWN, D. and RUSSELL, W.R. (1941) Experimental cerebral concussion. Brain 64: 93-164.
EFSA (2004) Welfare Aspects of Animal Stunning and Killing Methods. Scientific Report of the Scientific Panel for Animal Health and Welfare on a request from the Commission related to welfare aspects of animal stunning and killing methods (Question N° EFSA-Q-2003-093). European Food Safety Authority Scientific AHAW/04-027. pp 1-241.
ERASMUS, M.A., LAWLIS, P., DUNCAN, I.J.H. and WIDOWSKI, T.M. (2010a) Using time to insensibility and estimated time of death to evaluate a nonpenetrating captive bolt, cervical dislocation, and blunt trauma for on-farm killing of turkeys. Poultry Science 89: 1345-1354.
ERASMUS, M.A., TURNER, P.V., NYKAMP, S.G. and WIDOWSKI, T.M. (2010b) Brain and skull lesions resulting from use of percussive bolt, cervical dislocation by stretching, cervical dislocation by crushing and blunt trauma. Veterinary Record 167: 850-858.
ERASMUS, M.A., TURNER, P.V. and WIDOWSKI, T.M. (2010c) Measures of insensibility used to determine effective stunning and killing poultry. Journal of Applied Poultry Research 19: 288-298.
EUROPEAN COMMISSION (2009) European Council Regulation on the protection of animals at the time of killing EC 1099/2009. Accessed 15 Aug 2011.
FAO (2009) FAO Manual: Preparing For Highly Pathogenic Avian Influenza. V. Martin, A. Forman, J. Lubroth Animal Production and Health Division FAO, Rome, Italy, Revised edition 2009.
FAWC (2009) Report on the welfare of farmed animals as slaughter or killing, part 2: white meat animals, pp. 1-52.
GALVIN, J.W., BLOKHUIS, H., CHIMBOMBI, M.C., JONG, D. and WOOTON, S. (2005) Killing of animals for disease control purposes. Revue Scientifique et Technique de L'Office International Des Epizooties. 24: 711-722.
GERRITZEN, M.A., LAMBOOIJ, B., REIMERT, H., STEGEMAN, A. and SPRUIJT, B. (2004) On-farm euthanasia of broiler chickens: effects of different gas mixtures on behavior and brain activity. Poultry Science 83: 1294-1301.
GREGORY, N.G. and WOTTON, S.B. (1986) Effect of slaughter on the spontaneous and evoked activity of the brain. British Poultry Science 27: 195-205.
GREGORY, N.G. and WOTTON, S.B. (1990) Comparison of neck dislocation and percussion of the head on visual evoked responses in the chicken's brain. Veterinary Record 126: 570-572.
HEWITT, L. (2000) The development of a novel device for humanely dispatching casualty poultry. PhD Thesis, University of Bristol.
HSA (2004) Practical Slaughter of Poultry: A guide for the small producer. Humane Slaughter Association 2001, reprinted with minor amendments 2004.
JAKSCH, W. (1981) Euthanasia of day-old male chicks in the poultry industry. International Journal of the Study of Animal Problems 2: 203-213.
MCKEEGAN, D.E.F., MCINTYRE, J.A., DEMMERS, T.G.M., LOWE, J.C., WATHES, C.M., VAN DEN BROEK, P.L.C., COENEN, A. and GENTLE, M. (2007) Physiological and behavioural responses of broilers to controlled atmosphere stunning: implications for welfare. Animal Welfare 16: 409-426.
OIE (2010) Terrestrial Animal Health Code 2010 – Chapter 7.6 Killing of animals for disease control purposes. Accessed 27 August 2010.
OXFORD DICTIONARIES (2010) ‘concussion’ Oxford Dictionaries, April 2010. Oxford University Press. Accessed 02 March 2011.
PEARCE, J.M. (2008) Observations on concussion. A review. European Neurology 59: 113-119. doi:10.1159/000111872.
PIZZURRO, S. (2009) About us – expectation of order fulfilment. Accessed 27 October 2010.
QUALITY BRITISH TURKEY (2010) Agricultural standards: breeder replacements, laying birds, hatchery, growing farms, free range, pp. 1-116.
RAJ, A.B.M. and O'CALLAGHAN, M. (2001) Evaluation of a pneumatically operated captive bolt for stunning/killing broiler chickens. British Poultry Science 42: 295-299.
RAJ, A.B.M., SANDILANDS, V. and SPARKS, N.H.C. (2006) Review of gaseous methods of killing poultry on-farm for disease control purposes. Veterinary Record 159: 229-235.
ROMER, A.S. and PARSONS, T.S. (1977) The Vertebrate Body. Philadelphia, PA: Holt-Saunders International. pp.330-334.
RSPCA (2008a) RSPCA Standards for Broiler Chickens. RSPCA February 2008.
RSPCA (2008b) RSPCA Standards for Laying Hens and Pullets. RSPCA March 2008.
RSPCA (2009) RSPCA Standards for Ducks. RSPCA April 2009.
RSPCA (2010) RSPCA Standards for Turkeys. RSPCA March 2010.
SHAW, N.A. (2002) The neurophysiology of concussion. Progress in Neurobiology 67: 281-344.
UFAW (2010) The UFAW Handbook on the care and management of laboratory and other research animals - 8th Edition 2010. KIRKWOOD, J. & HUBRECHT, R. (Eds). (pp. 648. Ch 41 The Domestic Fowl).
WETA (2011) Concussion / Mild TBI. What exactly is a concussion? Accessed 02 March 2011.


Current and novel methods for killing poultry individually on-farm

  • J. SPARREY (a1), D.A. SANDERCOCK (a2), N.H.C. SPARKS (a2) and V. SANDILANDS (a2)


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