title: [Use of energy reserves during the breeding fast of the emperor penguin, Aptenodvtes forsteri].
abstract: During the breeding fasting of the emperor penguin, the lipid and protein stores are steadily used to meet the metabolic needs; they represent respectively 93 and 7% of the energy production in the animal. The role of the glucid stores are quantitively negligible. Loss of tissue water represents 35,3% of body weight loss. Increased weight loss below 20 kg a "critical weight", is associated with a conversion to protein catabolism when lipid supplies are exhausted. These results allow the estimation of the metabolism when the body weight loss is considered in this antartic penguin.
mesh_terms: D000273:Adipose Tissue / Q000378:metabolism; D000818:Animals; D001717:Birds / Q000378:metabolism*; D004734:Energy Metabolism; D005215:Fasting; D005260:Female; D006003:Glycogen / Q000378:metabolism; D007668:Kidney / Q000378:metabolism; D050356:Lipid Metabolism; D008099:Liver / Q000378:metabolism; D008297:Male; D009132:Muscles / Q000378:metabolism; D009206:Myocardium / Q000378:metabolism; D011506:Proteins / Q000378:metabolism; D012098:Reproduction; D012867:Skin / Q000378:metabolism
chemical_list: D011506:Proteins; D006003:Glycogen
vernacular_title: Utilisation des réserves énergétiques au cours du jeûne de la reproduction chez le Manchot empereur, Aptenodytes forsteri