Document Detail


Assessment of the welfare of food restricted male broiler breeder poultry with musculoskeletal disease.
MedLine Citation:
PMID:  7973090     Owner:  NLM     Status:  MEDLINE    
Abstract/OtherAbstract:
The general and sexual activity of food restricted male broiler breeder poultry was assessed for evidence of behavioural changes associated with musculoskeletal lesions. The activity and fertility of male birds given betamethasone (an anti-inflammatory steroid) or saline were compared in a two-period crossover experiment. Behavioural changes occurred and the birds' mating activity and fertility were decreased when they were given the steroid, but these effects were not associated with the presence of lesions. In a second experiment, there were no differences in sexual motivation between birds either with or without leg disorders. The birds were trained to walk down an alley for their food and the speed of walking was compared in a two-period crossover experiment. Betamethasone decreased their walking speed in period one and the carryover effect was significant in period two. Naloxone decreased the walking speed of birds with lesions more than of those without lesions. This effect was taken as evidence for analgesia by endogenous opioids and may help to explain the lack of response of the birds to the analgesic agent. The evidence that these food restricted male broiler breeder birds experienced pain was equivocal.
Authors:
P M Hocking
Publication Detail:
Type:  Journal Article    
Journal Detail:
Title:  Research in veterinary science     Volume:  57     ISSN:  0034-5288     ISO Abbreviation:  Res. Vet. Sci.     Publication Date:  1994 Jul 
Date Detail:
Created Date:  1994-12-05     Completed Date:  1994-12-05     Revised Date:  2006-11-15    
Medline Journal Info:
Nlm Unique ID:  0401300     Medline TA:  Res Vet Sci     Country:  ENGLAND    
Other Details:
Languages:  eng     Pagination:  28-34     Citation Subset:  IM    
Affiliation:
AFRC Roslin Institute, Edinburgh, Midlothian.
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MeSH Terms
Descriptor/Qualifier:
Animals
Betamethasone / therapeutic use
Body Weight
Chickens
Cross-Over Studies
Food Deprivation
Male
Musculoskeletal Diseases / veterinary*
Naloxone / therapeutic use
Organ Size
Pain / veterinary
Poultry Diseases / drug therapy,  physiopathology*
Sexual Behavior, Animal
Testis / anatomy & histology
Chemical
Reg. No./Substance:
378-44-9/Betamethasone; 465-65-6/Naloxone

From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine


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