Analysis of nectar replacement products and a case of iron toxicosis in hummingbirds

Twenty-five of 26 hummingbirds (Trochilidae) from 7 species previously maintained in an aviary on a commercial nectar substitute for 13 years, died over 3-month period. Gross necropsy was inconclusive; however, staining of liver and intestinal tissue showed high levels of Fe deposition. Analysis of separate bags (n=9) of the nectar product, with identical lot numbers, showed variation in Fe content...

A survey of the nutrient content of foods consumed by free ranging and captive Anegada iguanas (Cyclura pinguis)

Nutrient concentrations were determined in foods consumed by both free ranging and captive Anegada iguanas (Cyclura pinguis). Twenty-two species of plants, known to be consumed by free ranging iguanas during the dry season, were collected and analyzed. The plant parts were separated and categorized for analysis as flowers, fruits, or leaves. Mean nutrient concentrations and standard errors (SEM), on a...

Intake and digestion in babirusa (Babyousa babyrussa) and red river hogs (Potamochoerus poreus) fed high fiber diets

Previous studies suggest that fiber-digestion capacity of exotic swine species has not been challenged in captive feeding programs. Zoo diets are often low in dietary fiber, which may contribute to obesity, with accompanying joint and possible reproductive problems. Five-day feeding trials were conducted with 3 adult (2.1) babirusa (BAB) (Babyrousa babyrussa) housed separately, and 2 (1.1) adult red river hogs...