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Ontogenesis of hexokinase I and hexokinase IV (glucokinase) gene expressions in common carp (Cyprinus carpio) related to diet

Published online by Cambridge University Press:  09 March 2007

S. Panserat*
Affiliation:
Laboratory of Fish Nutrition, INRA-IFREMER, 64310 St-Pée-sur-Nivelle, France
S. Fontagné
Affiliation:
Laboratory of Fish Nutrition, INRA-IFREMER, 64310 St-Pée-sur-Nivelle, France
P. Bergot
Affiliation:
Laboratory of Fish Nutrition, INRA-IFREMER, 64310 St-Pée-sur-Nivelle, France
S. Kaushik
Affiliation:
Laboratory of Fish Nutrition, INRA-IFREMER, 64310 St-Pée-sur-Nivelle, France
*
*Corresponding author: Dr Stephane Panserat, fax + 33 5 59 54 51 52, email [email protected]
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Abstract

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The expressions of hexokinase IV (glucokinase, GK) and hexokinase (HK)-I genes were analysed during early ontogenesis of common carp (Cyprinus carpio). Unlike HK-I gene, which was expressed during all the stages of the development, GK was only induced by the first feeding with high levels of dextrin as a source of carbohydrate. This study confirms the high capacity of common carp to use glucose even at the very early stages of development.

Type
Short communication
Copyright
Copyright © The Nutrition Society 2001

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