Franklin, MA, United States
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Seeley K.E.,Point Defiance Zoo and Aquarium | Baitchman E.,Zoo New England | Bartlett S.,Zoo New England | Debroy C.,Pennsylvania State University | Garner M.M.,Northwest ZooPath
Journal of Zoo and Wildlife Medicine | Year: 2014

An increase in mortality in a captive flock of budgerigars (Melopsittacus undulatus) coincided with the isolation of attaching and effacing Escherichia coli from postmortem samples. Common histologic lesions included hepatitis, enteritis, and in one case attaching and effacing lesions along the intestinal tract. Retrospective review of necropsy records and increased sampling led to the identification of several cases of E. coli with the attaching and effacing (eae) virulence gene. Factors such as environment, nutrition, and concomitant pathogens were thought to contribute to mortality in the flock. Although it is not clear whether E. coli was a primary pathogen during the period of increased mortality, the presence of the eae gene combined with associated histologic lesions supports the conclusion that this organism was a significant contributor to mortality. Manipulation of diet, environment, and the addition of probiotic supplementation resulted in a decline in mortality rate and decreased shedding of E. coli based on negative follow-up cultures of intestines, liver, and feces. © Copyright 2014 by American Association of Zoo Veterinarians.

Whoriskey S.T.,College of the Atlantic | Bartlett S.L.,Zoo New England | Baitchman E.,Zoo New England
Journal of Zoo and Wildlife Medicine | Year: 2016

A 20-yr-old female Matschie's tree kangaroo (Dendrolagus matschiei) was diagnosed with hypoaldosteronism, a rare condition in which the body fails to produce normal amounts of the mineralocorticoid aldosterone. Aldosterone plays a key role in body salt homeostasis, increasing sodium reabsorption and promoting excretion of potassium. Hypoaldosteronism resulted in decreased appetite, lethargy, and weight loss in conjunction with hyponatremia, hyperkalemia, and hypercalcemia in this tree kangaroo. The animal was successfully managed with mineralocorticoid replacement using desoxycorticosterone pivalate. To the authors' knowledge this is the first report of hypoaldosteronism in a tree kangaroo and one of the few reports in the veterinary literature in any species. © Copyright 2016 by American Association of Zoo Veterinarians.

PubMed | Zoo New England
Type: Journal Article | Journal: The veterinary clinics of North America. Exotic animal practice | Year: 2013

Chytridiomycosis, caused by the chytridiomycete fungus, Batrachochytrium dendrobatidis, is an important pathogen of amphibians in captivity and is a major concern for global conservation of amphibians. The organism infects keratinized epithelial cells of amphibian skin and causes disease and mortality by interfering with important skin functions, especially electrolyte balance. Primary treatments are with antifungal medications applied in a topical bath solution, and itraconazole is the most commonly used agent, although several different options are available. Supportive treatment of the clinically ill patient is necessary for success, with particular attention to electrolyte therapy.

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