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A comparative study of the central effects of melanocortin peptides on food intake in broiler and layer chicks.
MedLine Citation:
PMID:  22760063     Owner:  NLM     Status:  Publisher    
Abstract/OtherAbstract:
Broiler chicks eat more food than layer chicks. However, the causes of the difference in food intake in the neonatal period between these strains are not clear. In this study, we examined the involvement of proopiomelanocortin (POMC)-derived melanocortin peptides α-, β- and γ-melanocyte-stimulating hormones (MSHs) in the difference in food intake between broiler and layer chicks. First, we compared the hypothalamic mRNA levels of POMC between these strains and found that there was no significant difference in these levels between broiler and layer chicks. Next, we examined the effects of central administration of MSHs on food intake in these strains. Central administration of α-MSH significantly suppressed food intake in both strains. Central administration of β-MSH significantly suppressed food intake in layer chicks, but not in broiler chicks, while central administration of γ-MSH did not influence food intake in either strain. It is therefore likely that the absence of the anorexigenic effect of β-MSH might be related to the increased food intake in broiler chicks.
Authors:
Kazuhisa Honda; Takaoki Saneyasu; Shin Hasegawa; Hiroshi Kamisoyama
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Publication Detail:
Type:  JOURNAL ARTICLE     Date:  2012-6-30
Journal Detail:
Title:  Peptides     Volume:  -     ISSN:  1873-5169     ISO Abbreviation:  -     Publication Date:  2012 Jun 
Date Detail:
Created Date:  2012-7-4     Completed Date:  -     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  8008690     Medline TA:  Peptides     Country:  -    
Other Details:
Languages:  ENG     Pagination:  -     Citation Subset:  -    
Copyright Information:
Copyright © 2012. Published by Elsevier Inc.
Affiliation:
Department of Bioresource Science, Graduate School of Agricultural Science, Kobe University, Kobe 657-8501, Japan.
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