Moreau Yann, Medale F., Boujard T., Luquet Pierre. (1992). Postprandial utilization of energy susbtrates by a tropical catfish, Holosternum littorale : indirect calorimetry analysis. Journal of Aquaculture in the Tropics, 7, p. 249-256. ISSN 0970-0846.
Titre du document
Postprandial utilization of energy susbtrates by a tropical catfish, Holosternum littorale : indirect calorimetry analysis
Année de publication
1992
Type de document
Article
Auteurs
Moreau Yann, Medale F., Boujard T., Luquet Pierre
Source
Journal of Aquaculture in the Tropics, 1992,
7, p. 249-256 ISSN 0970-0846
Indirect calorimetry method was used to measure postprandial utilization of energy substrates by atipa, Hoplosternum littorale (Callichthyidae, Siluriform). A model was adjusted to the data on respiratory exchanges and nitrogen excretion for this purpose. As for other fish species, protein was actively catabolized after feeding during the 60 hr measurement time. As long as carbohydrates were available, atipa was also able to use these substrates for its energy metabolism. A gradual increase of contribution of lipids was then noticed. Over a 24 hr period following the food intake, a 30 g fish catabolized 90 mg of proteins and 43 mg of carbohydrates. At the same time, the results led to a synthesis of 3.7 mg of fat. An estimation of the increase of the global metabolism associated to food intake was obtained from integration of the exponential terms of the models. (Résumé d'auteur)
