These citations may be helpful. In general, they suggest that shifts to more naturalistic feeding regimens (eg increasing meal frequency or providing consistently available edible material) are effective in controlling this problem. Akers, J.S. and Schildkraut, D.S., 1985. Regurgitation/reingestion and coprophagy in captive gorillas. Zoo Biology, 4: 99-109. Goerke, B., Fleming, L., and Creel, M., 1987. Behavioral changes of a juvenile gorilla after a transfer to a more naturalistic environment. Zoo Biology, 6: 283-295. Gould, E. and Bres, M., 1986. Regurgitation and reingestion in captive gorillas: Description and intervention. Zoo Biology, 5: 241-250. Loeffler, D.G., 1982. Regurgitation and reingestion in captive lowland gorillas. Zoo Journal, 6: 1042. Ruempler, U., 1992. The Cologne Zoo diet for Lowland gorillas (Gorilla gorilla gorilla) to eliminate regurgitation and reingestion. International Zoo Yearbook, 31: 225-229. Wiard, J., 1992. Reduction of regurgitation and reingestion (R&R) in lowland gorillas at the Oklahoma City Zoo. Gorilla Gazette, 6: 6-7. Kate Baker Yerkes Primate Research Center kateb@rmy.emory.edu
URL: http://www.primate.wisc.edu/pin/baker.html
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