Effect of diet and ration on the relationship between plasma GH and IGF-1 concentrations in Arctic charr

The purpose of the study was to investigate whether dietary ration or diet composition in£uence the rela-tionship between plasma growth hormone (GH) and insulin-like growth factor-1 (IGF-1) in Arctic charr (Salvelinus alpinus L.). The pattern of changes in plas-ma GH and IGF-1 concentrations was exa...

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Bibliographic Details
Main Authors: Salvelinus Alpinus (l, Colin Cameron, Richard Moccia, Paula A Azevedo, John F Leatherl
Other Authors: The Pennsylvania State University CiteSeerX Archives
Format: Text
Language:English
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Online Access:http://citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.561.5812
http://www.aps.uoguelph.ca/~rmoccia/RDM articles/Charr Diet and GH-IGF- Cameron, Moccia, Azevedo, Leatherland 2007.pdf
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Summary:The purpose of the study was to investigate whether dietary ration or diet composition in£uence the rela-tionship between plasma growth hormone (GH) and insulin-like growth factor-1 (IGF-1) in Arctic charr (Salvelinus alpinus L.). The pattern of changes in plas-ma GH and IGF-1 concentrations was examined in ¢sh fed at di¡erent ration levels (0%, 0.35 % and 0.70%BWday1) for 5 weeks, and in ¢sh fed diets containing di¡erent lipid:crude protein (LCP) ratios. Ration level signi¢cantly a¡ected plasma GH and IGF-1 concentrations; at 5 weeks the levels of both hormones in the food-deprived group were signi¢-cantly lower than in ¢sh fed the 0.70%BWday1 ra-tion. Also, plasma IGF-1 levels in ¢sh of each ration