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Morphopathological changes and pain in beak trimmed laying hens

Published online by Cambridge University Press:  18 September 2007

H. Cheng
H. Cheng
Affiliation:
Livestock Behaviour Research Unit, USDA-ARS, West Lafayette, IN 47907, USA E-mail: hwcheng@purdue.edu
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Abstract

Beak trimming is routinely practiced in the poultry industry to reduce the incidence of feather pecking, aggression, and cannibalism in egg layers. Feather pecking is painful to birds and potentially induces cannibalism. Cannibalism happens in all current housing environments, cage- and free-production systems, and is one of the major causes of bird death in commercial laying hens without beak trimming. However, beak trimming has solicited a great deal of debate concerning the relative advantage and disadvantage of the practice and its impact on welfare. Abird's beak is a complex functional organ with an extensive nerve supply and various sensory receptors. Beak trimming may cause pain (acute, chronic, orboth) in trimmed birds due to tissue damage and nerve injury. The complexity and plasticity of the nervous system and the animal's inability to communicate verbally make pain difficult to measure directly. However, pain in animals can be recognized and assessed using physiological and behavioural parameters in response to noxious events. When evaluating whether an animal is experiencing pain, a distinction should be made between what an animal may feel and what a human observing the animal may feel. It should be noted that beak trimming-induced pain in birds is genetic-, lesion-, and age-dependent. Based on the updated information, the authorwould like to indicate that 1 with some genetic flocks of laying hens, if beak trimming is needed to prevent featherpecking and cannibalism, it should be conducted at hatchery oryoungerthan 10 days of age; 2 however, the most desirable approach is to eliminate beak trimming through a genetic selection of birds with less cannibalistic and aggressive tendencies, and 3 another solution is to develop an alternative means of trimming that has fewer painful implications and safeguards welfare before non-cannibalistic stocks are commercially available.

Keywords

beak trimmingpathologypainchickens
Type
Reviews
Information
World's Poultry Science Journal , Volume 62 , Issue 1 , March 2006 , pp. 41 - 52
Copyright
Copyright © Cambridge University Press 2006

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References

Abu-Saad, H.H., Bours, G.J.J.W., Stevens, B. and Hamers, J.P.H. (1998) Assessment of pain in the neonate. Seminars in Perinatology 22: 204–416.CrossRefGoogle ScholarPubMed
Anand, K.J.S. and Hickey, P.R. (1987) Pain and its effects in the human neonatate and fetus. New England Journal of Medicine 317: 1321–1329.Google Scholar
Angrill, A. and Koster, U. (2000) Psychophysiological stress responses in amputees with and without phantom limb pain. Physiology and Behaviour 68: 699–706.CrossRefGoogle Scholar
Anil, S., Anil, S.L. and Deen, J. (2002) Challenges of pain assessment in domestic animals. Journal of American Veterinary Medical Association 220: 313–319.CrossRefGoogle ScholarPubMed
Appleby, M.C. and Hogarth, G.S. (1991) Welfare of laying hens in cages and alternative systems: environmental, physical and behavioural aspects. World's Poultry Science Journal 47: 109–128.CrossRefGoogle Scholar
Arruda, J.Sweitzer, L.S., Rutkowski, M.D. and Deleo, J.A. (2000) Intrathecal anti-IL-6 antibody and IgG attenuates peripheral nerve injury-induced mechanical allodynia in the rat: possible immune modulation in neuropathic pain. Brain Research 879: 216–225.Google Scholar
Bear, M.F., Connors, B.W. and Paradiso, M.A. (2001) Neuroscience exploring the brain. 2nd ed. Lippincott Williams and Wilkins.Google Scholar
Bennett, G.J. (1993) An animal model of neuropathic pain: a review. Muscle and Nerve 16: 1040–1048.Google Scholar
Blokhuis, H.J. and Wiepkema, P.R. (1998) Studies of feather picking in poultry. Veterinary Quarterly 20: 6–9.Google Scholar
Bloomquist, T. (2001) Amputation and phantom limb pain: a pain-prevention model. Journal of the American Association of Nurse Anesthetists 69: 211–217.Google Scholar
Breward, J. (1985) An electrophysiological investigation of the effects of beak trimming in the domestic fowl (Gallus gallus domesticus). Ph.D. thesis, University of Edinburgh.Google Scholar
Breward, J. (1984) Cutaneous nociceptors in the chicken beak. Journal of Physiology (London) 346: 56.Google Scholar
Breward, J.E. and Gentle, M.J. (1985) Neuroma formation and abnormal afferent nerve discharges after partial beak amputation (beak trimming) in poultry. Experentia 41: 1132–1134.CrossRefGoogle ScholarPubMed
Browder, J. and Gallagher, J.P. (1948) Dorsal cordotomy for painful phantom limb. Annals of Surgery 128: 457–469.CrossRefGoogle ScholarPubMed
Burchiel, K.J. and Ochoa, J.L. (1991) Pathophysiology of injured axons. Neurosurgery Clinical North American 2: 105–116.CrossRefGoogle ScholarPubMed
Cabot, P.J. (2001) Immune-derived opioids and peripheral antinociception. Clinical and Experimental Pharmacology and Physiology 28: 230–232.CrossRefGoogle ScholarPubMed
Carstens, E. (1995) Neuralmechanisms of hyperalgesia: Peripheral and central sensitization? News Physiology Research 10: 260–265.Google Scholar
Chen, R., Cohen, L.G. and Hallett, M. (2002) Nervous system reorganization following injury. Neuroscience 111: 761–773.Google Scholar
Coderre, T.J., Katz, J., Vaccarino, A.L. and Melzack, R. (1993) Contribution of central neuroplasticity to pathological pain: review of clinical and experimental evidence. Pain 52: 259–285.Google Scholar
Colburn, R.W., Rickman, A.J. and Deleo, J.A. (1999) The effect of site and type of nerve injury on spinal glial activation and neuropathic pain behaviour. Experimental Neurology 157: 289–304.CrossRefGoogle Scholar
Craig, J.V. and Lee, H.–Y. (1990) Beak trimming and genetic stock effects on behaviour and mortality from cannibalism in White Leghorn-type pullets. Applied Animal Behaviour Science 25: 107–123.Google Scholar
Cunha, F.Q. and Ferreira, S.H. (2003) Peripheral hyperalgesic cytokines. Advances in Experimental Medicine and Biology 521: 22–39.Google Scholar
Desserich, M., Folsch, D.W. and Ziswiler, V. (1984) Das Schnabelkupieren ber Huhnern, Ein Eingriff un innervierten Bereich. Tieraztliche Praxis 12: 191–202.Google Scholar
Devor, M. (1994) The pathophysiology of damaged peripheral nerves. In: Texbook of Pain, Edited by Wall, P.D. and Melzack, R., Churchill Livingstone, Edinburgh, pp.79–100.Google Scholar
Dubbeldam, J.L., De Bakker, M.A. and Bout, R.G. (1995) The composition of trigeminal nerve branches in normal adult chickens and after beak trimming, within some behavioural observation. Journal of Anatomy 186: 619–627.Google Scholar
Dubbeldam, J.L., Bout, R.G. and De Bakker, M.A. (1993) An analysis of the trigemerinal branches in the beak of normal chickens and after beak trimming, with some behavioural observations. European Journal of Neuroscience 6 (suppl.): 57.Google Scholar
Duncan, I.J.H., Slee, G.S., Seawrigh, E. and Breward, J. (1989) Behavioural consequences of partial beak amputation (beak trimming) in poultry. British Journal of Poultry Science 30: 479–488.CrossRefGoogle ScholarPubMed
Eide, P.K. and Rabben, T. (1998) Trigeminal neuropathic pain: pathophysiological mechanisms examined by quantitative assessment of abnormal pain and sensory perception. Neurosurgery 43: 1103–10.CrossRefGoogle ScholarPubMed
Eskeland, B. (1981) Effects of beak trimming. In: First European Symposium on Poultry Welfare. Edited by Sorensen, Y., Danish Branch of the World's Poultry Science Association. pp. 193–200.Google Scholar
Fitzerald, M. (1994) Neurobiology of fetal and neonatal pain. In: Texbook of Pain (4th ed.), Edited by Wall, P.D. and Melzack, R., Churchill-Livingstone, Edinburgh, pp.153–163.Google Scholar
Flor, H. (2002) The modification of cortical reorganization and chronic pain by sensory feedback. Applied Psychophysiology and Biofeedback 27: 215–27.CrossRefGoogle ScholarPubMed
Frischenschlager, O. and Pucher, L. (2002) Psychological management of pain. Disability and Rehabilitation 24: 416–22.CrossRefGoogle ScholarPubMed
Frisen, J., Risling, M. and Fried, K. (1993) Distribution and axonal relations of macrophages in a neuroma. Neuroscience 55: 1003–1013.CrossRefGoogle Scholar
Gaik, G.C. and Farbman, A.I. (1971a) The chicken trigeminal ganglion: I. Fine structure of the neurons during development. Journal of Morphology 141: 43–56.Google Scholar
Gaik, G.C. and Fabbman, A.I. (1971b) The chicken trigeminal ganglion: II. Fine structure of the neurons during development. Journal of Morphology 141: 57–76.CrossRefGoogle Scholar
Gentle, M.J. (1992) Pain in birds. Animal Welfare 1: 235–247.Google Scholar
Gentle, M.J. (1991) The acute effects of amputation on peripheral trigeminal afferents in Gallus gallus var domesticus. Pain 46: 97–103.CrossRefGoogle ScholarPubMed
Gentle, M.J. (1989) Cutaneous sensory afferents recorded from the nervus intramandibularis of Gallus gallus var domesticus. Journal of Comparative Physiology [A]. 164: 763–774.Google Scholar
Gentle, M.L. (1986a) Neuroma formation following partial beak amputation (beak trimming) in the chicken. Research in Veterinary Sciences 41: 383–385.CrossRefGoogle ScholarPubMed
Gentle, M.L. (1986b) Beak trimming in poultry. World's Poultry Science Journal 42: 268–275.Google Scholar
Gentle, M.J. and Breward, J. (1981) The anatomy of the beak. In: First Europeans Symposium on Poultry Welfare, Ed. Sorensen, L.Y., Koge, Danish Branch W.P.S.A. pp.185–189.Google Scholar
Gentle, M.J. and Breward, J. (1986) The bill tip organ of the chicken (Gallus gallus var. domesticus). Journal of Anatomy 145: 79–85.Google Scholar
Gentle, M.L. and Hunter, L.N. (1993) Neurogenic inflammation in the chicken (Gallus gallus var domesticus). Comparative Biochemistry and Physiology, Part C 105: 459–62.CrossRefGoogle ScholarPubMed
Gentle, M.L. and Hunter, L.N. (1988) Physiological and behavioural responses associated with feather removal in Gallus gallus var domestics. Research in Veterinary Medicine 50: 95–101.Google Scholar
Gentle, M.J., Hughes, B.O. and Hubrecht, C.R. (1982) The effect of beak trimming on food intake, feeding behaviour and body weight in adult hens. Applied Animal Ethology 8: 147–159.Google Scholar
Gentle, M.J., Hunter, L.N. and Waddington, D. (1991) The onset of pain related behaviours following partial beak amputation in the chicken. Neuroscience Letters 128: 113–116.Google Scholar
Gentle, M.J., Hughes, B.O., Fox, A. and Waddington, D. (1997) Behavioural and anatomical consequences of two beak trimming methods in 1- and 10-d-old domestic chicks. British Poultry Science 38: 453–463.Google Scholar
Gentle, M. J., Thorp, B.H. and Hughes, B.O. (1995) Anatomical consequences of partial beak amputation (beak trimming) in turkeys. Research in Veterinary Science 58: 158–162.CrossRefGoogle ScholarPubMed
Gentle, M.J., Waddington, D., Hunter, L.H. and Bryan Jones, R. (1990) Behavioural evidence for persistent pain following partial beak amputation in chickens. Applied Animal Behaviour Science 27: 149–157.Google Scholar
Glatz, P.C. (2000) Beak trimming methods. Review. Asian-Australian Journal of Animal Sciences 13: 1619–1637.CrossRefGoogle Scholar
Glatz, P.C. (1987) Effects of beak trimming and restraint on heart rate, food intake, body weight and egg production in hens. British Poultry Science 28: 601–611.Google Scholar
Glatz, P.C., Murphy, L.B. and Oreswton, A.P. (1992) Analgesic therapy of beak-trimmed chickens. Australian Veterinary Journal 69: 18.Google Scholar
Gottschaldt, K.M. (1985) Structure and function of avian somatosensory receptors. In: Form and Function in Bird. Vol. 3, Eds. King, A.S. and McLelland, J., Academic Press, London, pp. 375–461.Google Scholar
Holland, G.R. and Robinson, P.P. (1990) The number and size of axons central and peripheral to inferior alveolar nerve injuries in the cat. Journal of Anatomy 73: 129–137.Google Scholar
Homma, Y., Brull, S.J. and Zhang, J.M. (2002) Acomparison of chronic pain behaviour following local application of tumor necrosis factor alpha to the normal and mechanically compressed lumbar ganglia in the rat. Pain 95: 239–246.CrossRefGoogle Scholar
Hu, J.W., Sessle, B.J., Raboisson, P., Dallel, R. and Woda, A. (1992) Stimulation of craniofacial muscle afferents induces prolonged facilitatory effects in trigeminal nociceptive brain-stem neurones. Pain 48: 53–60.Google Scholar
Iggo, A. (1984) Pain in Animals. Potters Bar. Hertford-shire: Universities Federation for Animal Welfare.Google Scholar
Jacques, S. and Magali, H. (2001) Nociception and pain related procedures in animal husbandry. 52nd Annual Meeting of the European Association for Animal Production.Google Scholar
Jensen, T.S., Krebs, B., Nielsen, J. and Rasmussen, P. (1984) No-painful phantom limb phenomena in amputees: incidence, clinical characteristics and temporal course. Acta Neurologica Scandinavica 70: 407–414.CrossRefGoogle Scholar
Jensen, T.S., Krebs, B., Nielsen, J. and Rasmussen, P. (1983) Phantom limb, phantom pain and stump pain in amputees during the first 6 months following limb amputation. Pain 17: 243–256.CrossRefGoogle ScholarPubMed
Kostarczyk, E. (1999) Recent advances in neonatal pain research. Folia Morphology 58: 47–56.Google ScholarPubMed
Lucas, A.M. and Stettenheim, P.R. (1972) Avian anatomy. Integumant., USDA Agriculture Handbook, Washington DC.Google Scholar
Lunam, C.A., Glatz, P.C. and Hsu, Y.J. (1996) The absence of neuromas in beaks of adult hens after conservative trimming at hatch. Journal of Australian Veterinary 74: 46–49.Google Scholar
Lunam, C.A. (2005) Acute and chronic pain in beak-trimmed chickens. In: Poultry Welfare Issues, (Ed. Glatz, P.C.), Nottingham University Press, Nottingham, pp. 51–68.Google Scholar
Malinovsky, L. and Zemanek, R. (1971) Sensory innervation of skin and mucosa of some parts of the head in the domestic fowl. Folia Morphology 19: 18–23.Google ScholarPubMed
McAdie, T.N. and Keeling, L.J. (2000) Effect of manipulating feathers of laying hens on the incidence of feather pecking and cannibalism. Applied Animal Behaviour Science 68: 215–229.CrossRefGoogle ScholarPubMed
McHugh, J.M. and McHugh, W.B. (2000) Pain: neuroanatomy, chemical mediators, and clinical implications. AACN Clinical Issues 11: 168–178.CrossRefGoogle ScholarPubMed
McIntosh, J.I., Slinger, S.J., Sibbald, I.R. and Ashton, G.C. (1962) The effects of three physical forms of wheat on the weight gains and feed efficiencies of pullets from hatching to fifteen weeks of age. Poultry Science 41: 438–445.Google Scholar
Merskey, H. and Bogduk, N. (1994) Classification of chronic pain: Descriptions of Chronic Pain Syndromes and Definitions of Pain Terms, 2nd ed., IASP Press, Seattle.Google Scholar
Millan, M.J. (1999) The induction of pain: an integrative review. Progress in Neurobiology 57: 1–164.CrossRefGoogle ScholarPubMed
Molony, V. and Kent, J.E. (1997) Assessment of acute pain in farm animals using behavioural and physiological measurements. Journal of Animal Science 75: 266–272.Google Scholar
Mousa, S.A. (2003) Morphological correlates of immune-mediated peripheral opioid analgesia. Advances in Experimental Medicine and Biology 521: 77–87.Google ScholarPubMed
Narsinghani, U. and Anand, K.J.S. (2000) Developmental neurobiology of pain in neonatal rats. Lab Animal 29: 27–39.Google ScholarPubMed
Noden, D.W. (1980) Somatotopic and functional organization of the avian trigeminal ganglion: An HRP analysis in the hatchling chick. Journal of Comparative Neurology 190: 405–428.Google Scholar
Nolen, R.S. (2001) The ethics of pain management in animals. Journal of American Veterinary Medical Association 219: 1661.Google ScholarPubMed
Paul-Murphy, J. and Ludders, J.W. (2001) Avian analgesia. Veterinary Clinic of North American Exotic Animal Practice 4: 35–45.CrossRefGoogle ScholarPubMed
Puchalski, M. and Nummel, P. (2002) The reality of neonatal pain. Advances in Neonatal Care 2: 233–244.Google ScholarPubMed
Savory, C.J. (1995) Feather pecking and cannibalism. World's Poultry Science Journal 51: 215–219.CrossRefGoogle Scholar
Schafer, M. (2003) Cytokines and peripheral analgesia. Advances in Experimental Medicine and Biology 521: 40–50.Google ScholarPubMed
Schafer, M., Carter, L. and Stein, C. (1994) Interleukin 1 beta and corticotropin-releasing factor inhibit pain by releasing opioids from immune cells in inflamed tissue. Proceedings of National Academy of Sciences U.S.A. 91: 4219–4223.Google Scholar
Schott, G.D. (2001) Delayed onset and resolution of pain: some observations and implications. Brain 124: 1067–1076.CrossRefGoogle ScholarPubMed
Sheen, K. and Chung, J.M. (1993) Signs of neuropathic pain depend on signals from injured nerve fibres in a rat model. Brain Research 610: 62–68.CrossRefGoogle ScholarPubMed
Slinger, S.J., Pepper, W.F. and Sibbald, I.R. (1962) The effects of debeaking at weight weeks of age on the grit consumption, weight gains and feed efficiencies of growing pullets. Poultry Science 41: 1614–1615.Google Scholar
Smith, J.A. and Boyd, K.M. (1991) Lives in the Balance: the Ethics of using Animals in Biomedical Research. Oxford, Oxford University Press.Google Scholar
Sommerhoff, G. (1990) Life, Brain and Consciousness. Amsterdam: North-Holland.Google Scholar
Tal, M. (1999) ARole for Inflammation in Chronic Pain. Current Review of Pain 3: 440–446.Google Scholar
Tal, M., Wall, P.D. and Devor, M. (1999) Myelinated afferent fibre types that become spontaneously active and mechanosensitive following nerve transection in the rat. Brain Research 824: 218–223.CrossRefGoogle ScholarPubMed
Treede, R.D. (1995) Peripheral acute pain mechanisms. Annals of Medicine 27: 213–216.CrossRefGoogle ScholarPubMed
Underwood, W.J. (2002) Pain and distress in agricultural animals. Journal of the American Veterinary Medical Association 221: 208–211.Google Scholar
Wu, J. and Chiu, D.T. (1999) Painful neuromas: a review of treatment modalities. Annual Plastic Surgery 43: 661–667.CrossRefGoogle ScholarPubMed
Wall, P.D. (1992) Defining “pain in animals” In: Animal Pain, Edited by Short, C.E. and Poznak, A.V., Churchill Livingstone, New York,. pp. 63–79.Google Scholar
Wall, P.D. (1991) Neuropathic pain and injured nerve: central mechanisms. British Medical Bulletin 47: 631–643.Google Scholar
Wall, P.D. (1983) Alterations in the central nervous system after differentiation: connectively control. In: Advances in pain research and therapy, Edited by Bionica, J.J., Lindblom, U. and Iggo, A., Raven press, New York, pp. 677–689.Google Scholar
Wall, P.D. (1981) On the origin of pain associated with amputation. In: Phantom and stump pain, Edited by Siegfried, J. and Zimmermann, M., Springer Verlag. Berlin. pp.2–14.Google Scholar
Wall, P.D. (1979) Three phases of evil: the relation of injury to pain. Ciba Foundation Symposium 69: 293–304.Google Scholar
Walker, J.S. (2003) Anti-inflammatory effects of opioids. Advances in Experimental Medicine and Biology 521: 148–160.Google Scholar
Weinstein, S.M. (1998) Phantom limb pain and related disorders. Neurologic Clinics 16: 919–936.Google Scholar
Zayan, R. (1986) Assessment of pain in animals: epistemological comments. In: Assessing Pain in Farm Animals, Edited by Duncan, I.J.H. and Molony, V., Office for Official Publications of the European Communities, Luxembourg, pp. 1–14.Google Scholar
Zimmermann, M. (2001) Pathobiology of neuropathic pain. European Journal of Pharmacology 429: 23–37.Google Scholar