Does anyone have scientific evidence about pain in poultry? Do they show behavioral signs of pain? There are evidence of the peripheral sensitive connection in these animals.
They definitely show reflex pain responses:
http://www.ncbi.nlm.nih.gov/pubmed/24129110 - Thermal nociception as a measure of non-steroidal anti-inflammatory drug effectiveness in broiler chickens with articular pain.
This might be more what you are looking for - changes in gait associated with treatment for inflammatory pain: http://www.ncbi.nlm.nih.gov/pubmed/23317659
These might also be useful:
http://www.ncbi.nlm.nih.gov/pubmed/22927930
Do laying hens with keel bone fractures experience pain?
http://www.ncbi.nlm.nih.gov/pubmed/15500842
Effects of non-steroidal anti-inflammatory drugs on pain-related behaviour in a model of articular pain in the domestic fowl.
http://www.ncbi.nlm.nih.gov/pubmed/11798289
Effects of anti-inflammatory steroid drugs on pain coping behaviours in a model of articular pain in the domestic fowl.
As far as I can see, poultry are mainly studies in terms of pain associated with commercial rearing practices, particularly leg joints - usually using reflex measures but a few looking at behavioural and other observational outcomes.
Thank you very much for your help.
In fact the problem is that in the literature I have found only study related to the effect of anti-inflammatory on behavior but no information about the way to measure the level of pain associated with some disease.
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