Hyperkeratotic gastritis in two-toed sloths (Choloepus didactylus) from wildlife rescue.

Xenarthran mammals of the suborder Folivora are arboreal species that feed mainly on leaves and Cecropia spp, an abundant plant in the Brazilian Amazon region, is favoured. The stomach of sloths represents 20-30% of their body weight and is adapted to gastric fermentation of plant material. These anatomical and physiological adaptations can be altered by many factors when confined to captivity, which favours fatal gastric conditions.