Article (Scientific journals)
The assessment of nociceptive and non-nociceptive skin sensitivity in the Japanese quail (Coturnix japonica)
Evrard, H. C.; Balthazart, Jacques
2002In Journal of Neuroscience Methods, 116 (2), p. 135-146
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Keywords :
behavioral test; nociception; touch; morphine; naloxone; xylocaine; bird
Abstract :
[en] We evaluated the efficacy of two nociceptive tests, the hot water (HWT) and the foot pressure tests (FPT), and one non-nociceptive test (Semmes-Weinstein test, SWT) in assessing skin sensitivity in conscious Japanese quail. All stimuli elicited a reflex-like, strongly reproducible response. Responses in the HWT and FPT were identified as typical nocifensive flight-fight behavior. In untreated birds, these responses occurred at temperatures and forces described previously as noxious. In the SWT, two responses were observed: a slight ruffling of the cloacal gland feathers due to the stimulation of the cloacal gland, and a brief extension of the limbs due to the stimulation of the ilium or pectoral apterium. These reactions occurred at intensities recognized as innocuous. Morphine significantly altered the response latency and threshold in the HWT and FPT, but had no effect in the SWT. However, the SWT response threshold was significantly increased by local application of xylocaine. Taken together, the pattern of the responses, the intensities and the effects of morphine and xylocaine allowed to distinguish between nociceptive and non-nociceptive tests. They also demonstrate the efficacy of these tests to evaluate skin sensitivity in quail and to assess its modulation by chemical factors that affect somatosensory processes. (C) 2002 Elsevier Science B.V. All rights reserved.
Disciplines :
Neurosciences & behavior
Biochemistry, biophysics & molecular biology
Author, co-author :
Evrard, H. C.
Balthazart, Jacques  ;  Université de Liège - ULiège > Département des sciences biomédicales et précliniques > Biologie de la différenciation sexuelle du cerveau
Language :
English
Title :
The assessment of nociceptive and non-nociceptive skin sensitivity in the Japanese quail (Coturnix japonica)
Publication date :
May 2002
Journal title :
Journal of Neuroscience Methods
ISSN :
0165-0270
Publisher :
Elsevier Science Bv, Amsterdam, Netherlands
Volume :
116
Issue :
2
Pages :
135-146
Peer reviewed :
Peer Reviewed verified by ORBi
Available on ORBi :
since 21 April 2009

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