Feeding enrichment and body weight in captive chimpanzees.
Although positive behavioral consequences have been attributed to feeding enrichment, physiological changes may also occur. In this study, the body weight records of a large chimpanzee colony were reviewed to determine if body weight was affected by the implementation of a daily enrichment program, including food items offered three to four times per week. Comparing the mean body weight by age groups indicated that the weight of female chimpanzees was significantly greater after feeding enrichment but that male body weight did not differ.
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Department of Laboratory Animal Medicine, Southwest Foundation for Biomedical Research, San Antonio, Texas 78228, USA.
D000375:Aging; D000821:Animal Feed; D000818:Animals; D000830:Animals, Laboratory; D001835:Body Weight; D004032:Diet; D005260:Female; D006801:Humans; D008297:Male; D002679:Pan troglodytes / Q000033:anatomy & histology / Q000502:physiology*; D012727:Sex Characteristics; D012919:Social Behavior