Green moray eels (Gymnothorax funebris) under human care are reported to have elevated plasma cholesterol and triglyceride concentrations with associated development of lipid keratopathy (Clode et al. 2012). Nevertheless, serum trace mineral and vitamin analyses have not been assessed, and the complete nutrient content (cholesterol, vitamins, and minerals) of managed eel diets has also not been reported (Clode et al....
Normal circulating vitamin E levels have not been established for okapi (Okapi johnstoni) on a captive diet. Blood samples were obtained in 1996 by the Okapi SSP for free-ranging okapi in Zaire (Lukas, 1996). In 2009, vitamin E levels were acquired for animals housed at the Epulu Station in the Democratic Republic of the Congo fed an all leaf diet...
Vitamin E is an important antioxidant, and deficiency is known to impact the reproduction, growth, and immunity in many species. Dietary browse can be an important source of vitamin E for animals housed in zoological institutions; however the contribution of these items to total dietary vitamin E likely varies by browse species and across time. Our objective was to evaluate...
A flock of 150 greater flamingos (Phoenicopterus ruber roseus) at the San Diego Zoo Safari Park were moved to a new enclosure in 2010 to provide them a larger exhibit and to promote the breeding of lesser flamingos (Phoeniconaias minor) that shared the previous exhibit. Since the greater flamingos moved, they have not laid eggs through June 2015. A nutrition...
Vitamin E, an essential vitamin, has antioxidant properties that are important for maintaining optimal health. In the 1990’s, comparisons of zoo-housed and wild elephant species revealed concentrations of blood a-tocopherol (vitamin E) in zoo-housed elephants of approximately half that seen in their wild conspecifics (0.4 vs. 0.8 ug/ml; Dierenfeld and Traber, 1992). Addition of dietary vitamin E supplement for the...
The wide variety of lifestyle, digestive tract, and physiologic adaptations that exist across taxa result in an expansive array of nutritional needs and sensitivities, which can result in inadvertent essential nutrient excesses or deficiencies that result in disease (Barboza et al., 2009; Dierenfeld, 1997). While the incidence of nutrition related disease has seen a steady decline in veterinary pathology with...
Baseline serum alpha-tocopherol (alpha-toc) values in captive giant anteaters have not previously been defined. Cats and dogs are typical models for carnivore nutritional physiology and may prove useful for evaluating vitamin E (vit E) nutrition in zoo carnivores. The objective of this study was to determine serum alpha-toc as a measure of vit E status in captive anteaters, for comparison...
Whole prey items may contain lower nutrient levels than desired for feeding exotic carnivores. The purpose of this trial was to gather preliminary data on the effect of different dietary treatments on the nutrient composition of mice at various ages. Dietary enrichment with vitamin E and chelated minerals in general did not improve total body levels of most nutrients, but...
A retrospective study was conducted to evaluate the effectiveness of two vitamin E supplement forms in pink-backed pelicans (Pelecanus rufescens). The forms were a paste supplying 100 IU vitamin E daily or a capsule supplying 10.5 IU vitamin E daily. Baseline blood alpha-tocopherol concentrations were 7.15 ug/ml in 1998. After 10 months receiving vitamin E in the capsule form, the...
Attwater’s Prairie Chickens (Tympanuchus cupido attwateri) are an endangered Texan grouse species. Their survival relies on captive breeding for propagation of the free-ranging population. In recent years, chick hatchability and survivability in captivity has steadily decreased, with survivability in 2004 less than 30%. Preliminary data obtained in 2004 from captive and free ranging Attwater’s Prairie Chickens, demonstrated potential differences in...
Vitamin E requirements for exotic avian species remain undetermined and await investigation. As a result, diets formulated for captive exotic birds rely on the development of target ranges and feeding guidelines in order to minimize the risk of developing deficiencies and/or toxicities. These target ranges are commonly based on the requirements of domestic poultry, with the addition of calculation factors...
Although sharks are known to have unique aspects of lipid metabolism, fat-soluble vitamin concentrations have not been widely reported in the literature. Serum or plasma samples were obtained from eight species of sharks: black-tipped (Carcharhinus brevipinna; n=1), bonnethead (Sphyrna tiburo; n=7), brown (C. plumbeus; n=16), bull (C. leucas; n=14), lemon (Negaprion brevirostis; n=30), nurse (Ginglymostoma cirratum; n=14), sand tiger (Carcharias...
Although marine turtles are relatively well-studied endangered and threatened species, critical discontinuities exist in the literature regarding numerous significant blood values, especially those of free-ranging populations. Gaining a better understanding of marine turtle ecological physiology is an urgent priority, considering the impact such information could have on conservation management plans and population health assessments [Bolten and Bjorndal, 1992; Raphael et...
The death of a Lanner falcon (Falco biarmicus biarmicus) in January 2010 with low liver vitamin E (0.90 mg/kg wet wt.) suggested that the bird was in poor health with a marginal diet. The liver vitamin E concentration of poultry receiving adequate dietary vitamin E is 15-40 ?g/g wet weight.8 Animal care staff wanted to ensure the diet of the...
Proper handling of blood samples is critical for the most accurate results. Knowledge of which factors affect blood samples leads to a practical and efficient system of handling these samples. This study evaluated the effect of light, temperature, or type of blood collection tube on 25(OH) vitamin D, retinol, and alpha-tocopherol in lion blood samples. Blood samples were collected from...
A potential clinical case of ulcerative gingivitis in a male gharial (Gavialis gangeticus) initiated an investigation to determine if there was adequate ascorbic acid in the diet of crocodilians at the San Diego Zoo (SDZ), and San Diego Zoo Safari Park (SP). Reptiles can synthesize ascorbic acid and classic deficiency is rarely seen. The objective of this summary was to...
The purpose of this work was to measure important nutritional status parameters for captive primates, compare those with published data, and look for a link with diet. The nutritional status of nine captive primate species was examined using biochemical analysis. The species were spider monkeys (Ateles geoffroyi), colobus monkeys (Colobus guereza), sooty mangabeys (Cercocebus torquatus), Schmidt’s monkeys (Cercopithecus ascanius), mandrills...
According to the literature, piscivorous species fed dead, frozen fish in zoos have been shown to require supplemental vitamin E and thiamin (Engelhardt and Geraci, 1978, Robbins, 1993). The Rotterdam Zoo supplemented jackass penguins (Spheniscus demersus) with extra vitamins since 1991 by injecting liquid vitamins into the defrosted pilchards (Sardina pilchardus), mackerel (Scomber scombrus) and herring (Clupea harangus) fed to...
Serum levels of 25-OH vitamin D, retinol, a-tocopherol and y-tocopherol were determined for captive black and white ruffed lemurs (Varecia variegata variegata) imported from Park Ivoloina, Madagascar (n=8, 4 males, 4 females).
Duplication of natural foodstuffs for animals in captivity can be a difficult task. While it may not be possible to provide food sources normally available in an animal’ s natural habitat, a prospective goal might be to provide similar nutrients from locally available foods. Eight species of native Texas browse were studied for adequacy as a source of browse for...
High incidence of white muscle disease in captive nyala has lead to speculation that they have high vitamin E requirements. Maintenance of nyala is often achieved through high vitamin E supplementation. Injectable vitamin E has been administered monthly (750 IU/injection) at Denver Zoological Gardens for years as an effective method of preventing vitamin E deficiency related deaths, yet, was evaluated...
Venipuncture is a relatively noninvasive means of sampling tissues for determination of deviations from physiologic norms. To the extent that norms can be defined and deviations from norms can be associated with abnormality, blood analyses may be medically useful. However, studies of vitamin E metabolism have shown that neither the magnitude of body stores nor the availability of dietary supplies...