Failure by deprived hamsters to increase food intake: some behavioral and physiological determinants.
A series of experiments was performed to further understand the behavioral and physiological determinants of postfast anorexia in golden hamsters. Postfast anorexia and/or the failure to adapt to a feeding schedule was not restricted to a particular photoperiod condition or strain of hamster. The anorexia was also observed with a liquid diet, but hamsters were able to show large increases in water intake on a water deprivation schedule. When the animals were group housed, they pouched food during scheduled feeds and ate it later: Meal size was not increased. Measures of gastric fill and plasma metabolites indicated that filling and emptying of the forestomach may occur with a periodicity similar to that of spontaneous meals, and the data were consistent with strong peripheral satiation/satiety mechanisms in this species.
D000818:Animals; D001786:Blood Glucose / Q000378:metabolism; D002940:Circadian Rhythm; D006224:Cricetinae; D004326:Drinking; D004435:Eating; D002149:Energy Intake; D005260:Female; D005508:Food Deprivation; D005746:Gastric Emptying; D007408:Intestinal Absorption; D007657:Ketone Bodies / Q000097:blood; D008027:Light; D008112:Liver Glycogen / Q000378:metabolism; D008297:Male; D008647:Mesocricetus; D051381:Rats; D012931:Social Environment; D013045:Species Specificity; D014868:Water Deprivation
D001786:Blood Glucose; D007657:Ketone Bodies; D008112:Liver Glycogen