Physiological responses to low atmospheric pressure stunning and the implications for welfare

Poultry Science

Volumn 92, Issue 4, 2013, Pages 858-868

  McKeegan, D E F ^a   Sandercock, D A ^a   Gerritzen, M A ^b  

^a UNIVERSITY OF GLASGOW   (United Kingdom)

^b WAGENINGEN UNIVERSITY   (Netherlands)

Author keywords

Electroencephalogram; Low atmospheric pressure; Poultry; Stunning; Welfare

Indexed keywords

EID: 84875013289     PISSN: 00325791     EISSN: 15253171     Source Type: Journal    
DOI: 10.3382/ps.2012-02749     Document Type: Article

References (25)

1. American Veterinary Medical Association. 2007. AVMA Guidelines on Euthanasia. Am. Vet. Med. Assoc., Schaumburg, IL.
2. Battula, V., M. W. Schilling, Y. Vizzier-Thaxton, J. B. Behrends, J. B. Williams, and T. B. Schmidt. 2008. The effects of low atmosphere stunning and deboning time on broiler breast meat quality. Poult. Sci. 87:1202-1210.
3. Benson, E. R., R. L. Alphin, M. K. Rankin, M. P. Caputo, C. A. Kinney, and A. L. Johnson. 2012. Evaluation of EEG based determination of unconsciousness vs. loss of posture. Res. Vet. Sci. 93:960-964.
4. Coenen, A. M. L., J. A. C. Lankhaar, J. C. Lowe, and D. E. F. McKeegan. 2009. Remote monitoring of EEG, ECG and behavior during controlled atmosphere stunning (CAS) in broilers: Implications for welfare. Poult. Sci. 88:10-19.
5. Cooley, J. W., and J. W. Tukey. 1965. An algorithm for the machine calculation of complex Fourier series. Math. Comput. 19:297-301.
6. European Commission. 2009. Council Regulation (EC) No 1099/2009 on the protection of animals at the time of killing. Official Journal of the European Union L303/1.
7. Gerritzen, M. A., B. Lambooij, H. Reimert, A. Stegeman, and B. Spruijt. 2004. On-farm euthanasia of broiler chickens: Effects of different gas mixtures on behavior and brain activity. Poult. Sci. 83:1294-1301.
8. Hansen, H. C., and J. Claasen. 2005. EEG and evoked potentials in neuroanaesthesia, intraoperative neurological monitoring and neuro-intensive care. Pages 1137-1164 in Electroencephalography: Basic Principles, Clinical Applications and Related Fields. E. Niedermeyer, and F. Lopez da Silva, ed. Lippincott, William and Wilkins, Philadelphia, PA.
9. Johnson, C. B., K. Stafford, S. Slyvester, N. Ward, S. Mitchison, and S. Mellor. 2005a. Effects of age on the electroencephalographic response to castration in lambs using halothane in oxygen. N. Z. Vet. J. 53:433-437.
10. Johnson, C. B., P. Wilson, M. Woodbury, and N. Caulkett. 2005b. Comparison of analgesic techniques for antler removal in halothane-anaesthetized red deer (Cervus elaphus). Vet. Anaesth. Analg. 32:61-71.
11. Kaiser, J. C. 2005. Basic principles of quantitative EEG. J. Adult Dev. 12:99-104.
12. Lowe, J. C., S. M. Abeyesinghe, T. G. M. Demmers, C. M. Wathes, and D. E. F. McKeegan. 2007. A novel telemetric logging system for recording physiological signals in unrestrained animals. Comput. Electron. Agric. 57:74-79.
13. Martín-Cancho, M. F., J. R. Lima, L. Luis, V. Crisóstomo, M. A. López, L. J. Ezquerra, M. S. Carrasco-Jiménez, and J. Usón-Gargallo. 2006. Bispectral index, spectral edge frequency 95% and median frequency recorded at varying desflurane concentrations in pigs. Res. Vet. Sci. 81:373-381.
14. McKeegan, D. E. F., J. McIntyre, T. G. M. Demmers, J. C. Lowe, C. M. Wathes, P. L. C. van den Broek, A. M. Coenen, and M. J. Gentle. 2007. Physiological and behavioural responses of broilers to controlled atmosphere stunning-Implications for welfare. Anim. Welf. 16:409-426.
15. McKeegan, D. E. F., H. G. M. Reimert, V. A. Hindle, P. Boulcott, J. M. Sparrey, C. M. Wathes, T. G. M. Demmers, and M. A. Gerritzen. 2013. Physiological and behavioral responses of poultry exposed to gas-filled high expansion foam. Poult. Sci. http:// dx.doi.org/10.3382/ps.2012-02587.
16. McKeegan, D. E. F., N. H. C. Sparks, V. Sandilands, T. G. M. Demmers, P. Boulcott, and C. M. Wathes. 2011. Physiological responses of laying hens during whole house killing with carbon dioxide. Br. Poult. Sci. 52:645-657.
17. Murrell, J. C., and C. B. Johnson. 2006. Neurophysiological techniques to assess pain in animals. J. Vet. Pharmacol. Ther. 29:325-335.
18. Murrell, J. C., S. L. Mitchinson, D. Waters, and C. B. Johnson. 2007. Comparative effect of thermal, mechanical and electrical noxious stimuli on the electroencephalogram of the rat. Br. J. Anaesth. 98:366-371.
19. Purswell, J. L., J. P. Thaxton, and S. L. Branton. 2007. Identifying process variables for a low atmospheric pressure stunning-killing system. J. Appl. Poult. Res. 16:509-513.
20. Raj, A. B. M. 2006. Recent developments in stunning and slaughter of poultry. World's Poult. Sci. J. 62:467-484.
21. Raj, A.B. M., N. G. Gregory, and S. B. Wotton. 1991. Changes in the somatosensory evoked potentials and spontaneous electroencephalogram of hens during stunning in argon-induced anoxia. Br. Vet. J. 147:322-330.
22. Schwilden, H. 1989. Use of median frequency and pharmacokinetics in determining depth of anaesthesia. Balliere's Clin. Anesthesiol. 3:603-621.
23. Smith, D. C. 1965. Methods of euthanasia and disposal of laboratory animals. Pages 167-195 in Methods of Animal Experimentation. Vol. 1. W. I. Gay, ed. Academic Press, New York, NY.
24. Vizzier-Thaxton, Y., K. D. Christensen, M. W. Schilling, R. J. Buhr, and J. P. Thaxton. 2010. A new humane method of stunning broilers using low atmospheric pressure. J. Appl. Poult. Res. 19:341-348.
25. Woolley, S. C., and M. J. Gentle. 1988. Physiological and behavioural responses of the domestic hen to hypoxia. Res. Vet. Sci. 45:377-382.