Enamel ridge alignment in upper molars of ruminants in relation to their natural diet
Although it is generally thought that dental design reflects mechanical adaptations to particular diets, concrete concepts of such adaptations beyond the evolution of hypsodonty are largely missing. We investigated the alignment of enamel ridges in the occlusal molar surface of 37 ruminant species and tested for correlations with the percentage of grass in the natural […]
Comparison of the fatty acid component in structural lipids from dolphins, zebra and giraffe: possible evolutionary implications
Essential fatty acid compositional data on the structural lipids of mammals which predominantly eat n‐3 fatty acids suggests preferential incorporation of n‐6 essential fatty acids. The structural lipids of liver, muscle and brain of five species of dolphin (Tursiops truncatus, Stenella allenuata, Steno bredanesis, Delphinus delphis and Lagenorhynchus obliquidens), obtained from the wild, contained substantial amounts of arachidonic […]
The Giraffe Nutrition Workshop Proceedings: May 25 – 26, 2005
On May 25, 2005, 14 people interested in giraffe nutrition and health, convened at Lincoln Park Zoo in Chicago for a two-day workshop. The participants consisted of university and USDA ruminant nutrition researchers, zoo nutritionists, and veterinarians in addition to the giraffe nutrition and veterinary advisors and the PMP coordinator for giraffe. Captive giraffe have […]
Digestive tract pathology of captive giraffe (Giraffa Camelopardalis). A unifying hypothesis
Captive giraffe (Giraffa Camelopardalis) are affected by four major pathological conditions linked to their nutrition: (1) the so-called “peracute mortality syndrome” with complete absence and serious atrophy of body fat stores, (2) phytobezoars, i.e. Fibrous conglomerates of plant material, in the omasum and abomasums (3) rumen acidosis or (4) partial loss of dorsal ruminal papillation. […]
Conservation conundrum: Endangered predators eating endangered prey
As populations of wildlife dwindle in number, and as ecosystems suitable for animals disappear, conservation conundrums emerge that have no easy solutions. One such issue involves predators and prey. What can be done when an endangered species of predators might be hastening the extinction of an endangered species of prey by including it in their […]
Advances in Giraffe Nutrition
In the last decade, numerous publications have been written with regard to the nutrition of giraffe and other ruminant browsers maintained in zoological institutions, inspired by several health problems suspected to have a nutritional origin. Thus, reports of rumen acidosis, chronic wasting, peracute mortality syndrome, energy malnutrition, hoof disease, inverse serum calcium and phosphorus levels, […]
Differences in Fecal Particle Size Between Free-ranging and Captive Individuals of Two Browser Species
Data from captive animals indicated that browsing (BR) ruminants have larger fecal particles—indicative of lesser chewing efficiency—than grazers (GR). To answer whether this reflects fundamental differences between the animal groups, or different reactions of basically similar organisms to diets fed in captivity, we compared mean fecal particle size (MPS) in a GR and a BR […]