Intake apparent digestibility and digesta passage in leopard tortoises (Geochelone pardalis) fed a complete, extruded feed

The influence of feeding juvenile female leopard tortoises (Geochelone pardalis, n=18) a commercially available, complete, extruded feed on two commonly used feeding schedules was evaluated. When fed seven (compared to three) days per week, dry matter and digestible energy intakes were greater (P<0.05). Tortoises gained more body weight, kilogram (BWkg), but not when adjusted per initial BWkg, grew more in...

Application of allometric field metabolic rate equations to predict energy and food requirements of leopard tortoises (Geochelone pardalis)

In the absence of species specific energy requirements, allometric formulas are one method to predict practical diet quantities. The objective of this study was to quantify individual voluntary dry matter (DMI), metabolizable energy (MEI) intake and body weight (BW) in 18 juvenile leopard tortoises (Geochelone pardalis). Over two 15-day periods (A, B), each animal was offered a nutritionally complete, extruded...

A survey of the nutrient content and intake of the dry season diet consumed by captive Grand Cayman iguanas (Cyclura lewisi)

Nutrient concentrations were determined in foods consumed by both free ranging and captive Grand Cayman iguanas (Cyclura lewisi). Plant collection and nutrient intake was measured during the dry season, when mating is known to occur. Fourteen species of plants known to be consumed by free ranging iguanas, or thought to be historically consumed when their distribution was not limited, were...

Dietary husbandry of captive white-tailed deer (Odocoileus virginianus) in the Northern USA and Canada must consider effects of daylength, age, and gender on tissue energy reserves

The effects of age, season, and gender on live body weights, lipogenesis and lipolysis in subcutaneous and perirenal adipose tissues, and weight and fat (ether extract) concentrations of skeletal muscles and viscera were studied in 48 captive white-tailed deer (Odocoileus virginianus) fed a complete diet ad libitum. Food intake, rates of lipogenesis, and accumulation of fat in skeletal muscle and...

Nutritional physiology of duikers: a synthesis

Duikers (Cephalophus and Sylvicapra spp) form a guild of small antelope inhabiting the forests of sub-Saharan Africa. Local duiker communities are diverse, with 17 species ranging 10-fold in body mass (3 – 80 kg). Duikers can be adversely affected by forest management and hunting, thus 15 species are listed in the International Union for the Conservation of Nature red list...

BROWSE – HOW MUCH IS ENOUGH? THE CHALLENGES OF ASSESSING BROWSE INTAKE

Browse is an important dietary component for many herbivore diets. Animals such as giraffe, black rhino, kudu, bongo, gerenuk, porcupines and many others consume a significant amount of browse as their natural diet. Providing sufficient quantities and appropriate browse species is one of the most challenging aspects of feeding animal collections in a zoological setting. At Disney’s Animal Kingdom, we...

Voluntary intake by Hyacinth Macaws (Anodorhynchus hyacinthinus)

In August 2004 two juvenile Hyacinth Macaws (Anodorhynchus hyacinthus) arrived at Temaikèn Wild Animal Park. Their feathers were in very bad condition and they weighed 1,230 g on average. At the very beginning, a diet with a great variety of ingredients was given. Two months later, during a first 5-day period leftovers were measured. At that moment the animals weighed...

Preliminary studies of flying foxes’ diet intake as an integration work between keepers and nutrition staff at Temaikèn

During 6 months, as part of an integration experience, keepers and nutrition staff worked together to study the flying foxes’ (Pteropus vampyrus and Pteropus lylei) diet intake at the Temaikèn Wild Animal Park. At the beginning of the study, animals weighed an average of 763.84 g in the case of the former, and 398.8 in the case of the latter....