Incorporating the science of nutrition into the management of captive animals.
Three four-day intake trials were conducted with two captive adult male spectacled bears fed a diet comprising of produce and commercial dry feed. Digesta passage was measured using raisins as a marker; digestion was assessed through total fecal collection. 
In a crossover design, four adult animals, a male and female Amur leopard cat (Prionailurus bengalensis euptilura) and a male and female Turkmenistan caracal (Caracal caracal michaelis) were fed three fresh-frozen beef based diets containing different sources of fiber; beet pulp (BP), fructooligosaccharides/cellulose blend (FOS), and wood cellulose (Solka Floe®) (WC). Assessment included food intake, fecal consistency, animal body weight,... 
This was a preliminary study in which nutrient digestibility, digesta passage rate and body mass were determined for a captive group of baboons (Papio anubis). The group consisted of 6 adult, nonpregnant females. Three experimental diets, varying in acid detergent fiber (ADF) content, were fed. The fiber content of the experiment diets was: diet1=10.45% ADF, diet2=18.30% ADF and diet3=30.40% ADF. 
Four female Bactrian camels (Camelus bactrianus) were offered a diet of chopped mixed hay, composed predominantly of timothy, at three levels of intake. Digestibility of the hay was measured by total collection and rates of passage using cobalt (III) ethylene diamine tetra acetate and Chromium-mordanted hay. The time spent eating and ruminating per day was ascertained by continuous observation for...
Markers provide a method for indirect quantitation of digestive parameters. Gastrointestinal physiology and kinetics show a tremendous variation among species that is undoubtedly a reflection of evolution and dietary adaptation. Therefore, markers used in nutrition research must be appropriately selected for each species and each circumstance. Markers serve to facilitate quantification of passage rate and digesta fill as well as...