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Onderzoek die in jouw straatje passen vind je wel, maar wetenschappelijke studies die het tegendeel bewijzen kan jij niet vinden. Zielig heeeeeeeeeeeeeeeeeeel zielig.
Maar vooruit, ik zal er eentje naar voren halen.
by Temple Grandin
Department of Animal Science
Colorado State University
Fort Collins, Colorado 80523
Updated February 2010
A study done in New Zealand in 2009 shows that slaughter without stunning causes pain. A new EEG (brainwave) method was used, which can determine when an animal is feeling pain. In these experiments, lightly anesthetized calves were cut with a very sharp knife that was 24.5 cm long. The weight of the calves was 109 to 170 kg. One reason why the calves were lightly anesthetized was to prevent animal movements (movement artifact) from changing and distorting the EEG patterns. The experiments showed that the calves would have been experiencing pain during the cut (Gibson et al, 2009 ab).
Aspiration of Blood
Research also shows that cattle aspirate (inhale) blood into the lungs during Kosher and halal slaughter. This can vary from 36% to 69% (Gregory et al, 2008). The cattle were restrained in an upright position. The author has also observed aspiration of blood during Kosher and halal slaughter. It is the author’s opinion that aspiration of blood is more likely to be a serious welfare problem for cattle, because bovines take longer to lose sensibility (consciousness) compared to sheep (Baldwin, 1971 and Blackmore, 1984). This provides more time for cattle to aspirate blood compared to sheep. Sheep lose sensibility more quickly due to differences in their blood vessel anatomy compared to cattle (Baldwin, 1971; Baldwin and Bell, 1963).
References
Barnett, J.L., Cronin, G.M., and Scott, P.C., 2007. Behavioral responses of poultry during Kosher slaughter and their implications for bird’s welfare. Veterinary Record. 160:45-49.
Baldwin, B.A., 1971. Anatomical and physiological factors involved in slaughter by carotid section; Humane killing and slaughterhouse techniques. Universities Federation for Animal Welfare. Potters Bar, Herts, UK. pp 34-43.
Baldwin, B.A. and Bell, F. R. 1963. Journal of Physiology, 167: 448-462.
Blackmore, D.K., 1984. Differences in sheep and cattle during slaughter. Research in Veterinary Science. 37:223-226.
Gibson, T.J., Johnson, C.B., Murrell, J.C., Hulls, C.M., Mitchinson, S.L., Stafford, K.J., Johnstone, A.C., and Mellor, D.J., 2009. Electrocencephalographic responses of halothane-anaesthetised calves to slaughter by ventral-neck incision without prior stunning. New Zealand Veterinary Journal. 57:77-85.
Gibson, T.J., Johnson, C.B., Murrell, J.C., Chambers, J.P, Stafford, K.J., and Mellor, D.J., 2009. Components of electroencephalographic responses to slaughter in halothane-anaesthetised calves: Effects of cutting neck tissues compared to major vessels. New Zealand Veterinary Journal. 57:84-89.
Grandin, T., 1992. Observations of cattle restraint devices for stunning and slaughter. Animal Welfare. 1:85-91.
Grandin, T., 1994. Euthanasia and slaughter of livestock. Journal of the American Veterinary Medical Association. 204:1354-1360.
Gregory, N.G., Von Wenzlawowicz, M., and Von Holleben, K., 2008. Blood in the respiratory tract during slaughter with and without stunning in cattle. Meat Science. 82:13-16.
