Individual study: Influences on the Feeding Behavior of Three Mammals in the Maruyama Zoo: Bears, Elephants, and Chimpanzees
Morimura N. & Ueno Y. (1999) Influences on the Feeding Behavior of Three Mammals in the Maruyama Zoo: Bears, Elephants, and Chimpanzees. Journal of Applied Animal Welfare Science, 2, 169-186
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Primates: Change the number of feeds per day
A before-and-after study in 1999 in Japan (Morimura & Ueno 1999) found that when food was given twice a day instead of once a day to a group of chimpanzees Pan troglodytes the amount of time spent feeding increased. On average, feeding time contributed to 7% of the behaviours expressed when one feed was offered per day and 24% when two feeds were offered per day. A group of five chimpanzees was observed for 15 days over five one hour time periods when all food was provided in the afternoon at 15:00 h and when one feed was given between 10:00 h and 11:00 h and a second feed at 15:00 h. (CJ)