Seasonal and post-freezing variation of crude protein content and digestibility of willow and cottonwood leaves in regard to giraffe nutrition
The nutrient content of giraffe diets has not been well established. Many diets are lacking or have excessive amounts of protein, and protein is a good indicator of overall nutrient content. Hay and alfalfa are not ideal food items, and browse or leaves are the natural food choice for wild giraffe. In climates that experience […]
Osteophagia and bone modifications by giraffe and other large ungulates
Ungulates often gnaw on animal bones, antlers, horns, and ivory in order to maintain certain nutritional requirements. The resulting modifications to bones and other skeletal elements have been variously described and reported, but are largely absent from most taphonomic reference works. Previous accounts of such gnawing behaviors have been restricted to smaller ungulates. Here we […]
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 […]
The impact of nutrition on the development of urolithiasis in captive giraffes and meat goats
Obstructive urolithiasis is a documented problem in domestic ruminants, such as the meat goat, and also in captive giraffe. A survey of the health history, feeding practices, and dietary contents in captive giraffes in North America was conducted to examine the possible connection between diet and the development of urolithiasis. Samples of urine, serum and […]
Monitoring the behavioral and adrenal Aactivity of giraffe (Giraffa camelopardalis) to assess welfare during seasonal housing changes
In inclement weather, northern zoos are required to provide animals from warmer climates with indoor exhibits. These indoor exhibits are typically smaller, lack natural substrate, and have lower levels of stimulation for the animals. The purpose of this study was to examine the welfare of four reticulated giraffe (Giraffa camelopardalis reticulata) exhibited at the Chicago […]
Stress and social behaviors of maternally deprived captive giraffes (Giraffa camelopardalis)
Maternal deprivation can cause long-term behavioral changes in captive mammals. Studies regarding captive ungulates have also indicated behavioral shifts in the presence of the animal keeping staff; however, little is known about these effects in captive giraffes (Giraffa camelopardalis). To examine this, we observed a population of reticulated giraffes composed of maternally raised and maternally […]
The effects of increased hay-to-grain ratio on behavior, metabolic health measures, and fecal bacterial communities in four Masai giraffe (Giraffa camelopardalis tippelskirchi) at Cleveland Metroparks Zoo
We evaluated whether increasing the hay-to-grain ratio offered to Masai giraffe (Giraffa camelopardalis tippelskirchi) at Cleveland Metroparks Zoo would reduce oral stereotypies and alter feeding behaviors, maintain or increase serum calcium-to-phosphorus ratio, decrease serum insulin-to-glucose ratio and salivary insulin, and alter fecal bacterial community structure. Giraffe transitioned to a ∼90:10 hay-to-grain ratio in even increments […]
Observations on puberty and pregnancy in female giraffe (giraffa camelopardalis)
The age at sexual maturity in the female giraffe G. camelopardalis was found to be 3 years 10 months when in captivity and 4 years 8 months in wild animals. The mean calving interval was 19.9 months for wild animals, and 21.5 months for captives. Post partum intervals as short as 19, 23 and 27 […]
Urinary steroid evaluations to monitor ovarian function in exotic ungulates: II. Comparison between the giraffe (giraffa camelopardalis) and the okapi (okapia johnstoni)
Ovarian activity in the female giraffe was evaluated during the nonfertile ovarian cycle and during the terminal stages of gestation. Progesterone metabolites, in the form of pregnanediol‐3‐glucuronide (PdG), were measured in daily random urine samples collected from four adult parous giraffes. The follicular phase averaged 4.0 ± 0.1 days in length (N = 12; range […]
Colonic obstruction in three captive reticulated giraffe (Giraffa camelopardalis reticulata)
Fatal colonic obstructions were diagnosed in three captive, adult, reticulated giraffe (Giraffa camelopardalis reticulata). Clinical presentations varied, but all cases displayed decreased activity, anorexia, and considerably decreased fecal production, consistent with intestinal obstruction. Case 1 was diagnosed at necropsy with a phytobezoar obstructing the spiral colon. Case 2 was diagnosed at necropsy with a fecal […]