Results 231 to 240 of about 7,676 (261)

OMENTAL TORSION IN A CAPTIVE POLAR BEAR (URSUS MARITIMUS)

Journal of Zoo and Wildlife Medicine, 2014
This is the first case report of an omental torsion in a polar bear (Ursus maritimus). A captive, 23-yr-old, 250-kg, intact female polar bear presented to the University of Minnesota Veterinary Medical Center with a 2-day history of lethargy, depression, and vomiting.
Jose L, Mendez-Angulo, Francisco J, Funes, Ava M, Trent, Michelle, Willette, Kerry, Woodhouse, Anna C, Renier   +5 more
openaire   +2 more sources

Fatal Hepatic Sarcocystosis in Two Polar Bears (Ursus maritimus)

The Journal of Parasitology, 1997
Fatal hepatic sarcocystosis was diagnosed in 2 polar bears from a zoo in Anchorage, Alaska. Gross lesions were icterus and systemic petechiae. Marked microscopic lesions were detected only in the liver and included severe random necrotizing hepatitis with hemorrhage.
H M, Garner, B C, Barr, A E, Packham, A E, Marsh, K A, Burek Huntington, R K, Wilson, J P, Dubney   +6 more
openaire   +2 more sources

Hypospadias in a polar bear (Ursus maritimus).

Journal of zoo and wildlife medicine : official publication of the American Association of Zoo Veterinarians, 1999
Corrective surgery on a 1.5-yr-old male polar bear (Ursus maritimus) with hypospadias included amputation of the vestigial penis, bilateral orchiectomy with scrotal ablation, and distal perineal urethrostomy. Hypospadias in other species is a congenital deformity that may be caused by extra- and intrauterine factors resulting in a disruption of the ...
M A, Stamper, T, Norton, G, Spodnick, J, Marti, M, Loomis   +4 more
openaire   +1 more source

Acquired Umbilical Hernias in Four Captive Polar Bears (Ursus maritimus)

Journal of Zoo and Wildlife Medicine, 2009
Umbilical hernias are a common occurrence in domestic animals and humans but have not been well documented in polar bears. Surgical reduction and herniorrhaphies were performed to correct acquired hernias in the region of the umbilicus in four adult captive polar bears (Ursus maritimus) housed in North American zoos.
Karen E, Velguth, Mark C, Rochat, Jennifer N, Langan, Kay, Backues   +3 more
openaire   +2 more sources

Babesia sp. infection in a zoo-housed polar bear (Ursus maritimus)

Veterinary Parasitology: Regional Studies and Reports, 2019
A 28-year-old female polar bear (Ursus maritimus) housed in a zoo in Upstate New York presented with acute inappetence and lethargy. The bear's condition rapidly deteriorated, and because laboratory testing indicated severe hepatic and renal disease, the bear was humanely euthanized.
Louis, DiVincenti, Michael, Garner, Brittany, Thomas, Adam, Birkenheuer   +3 more
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Serosurvey of selected zoonotic agents in polar bears ( Ursus maritimus )

Veterinary Record, 2005
Between 1982 and 1999 blood samples were collected from 500 polar bears ( Ursus maritimus ) captured in the Beaufort and Chukchi seas, to determine the seroprevalence of Brucella species, Toxoplasma gondii , and Trichinella
H, Rah, B B, Chomel, E H, Follmann, R W, Kasten, C H, Hew, T B, Farver, G W, Garner, S C, Amstrup   +7 more
openaire   +2 more sources

Is the polar bear (Ursus maritimus) a Hibernator?: continued studies on opioids and hibernation

Pharmacology Biochemistry and Behavior, 1990
Polar bear behavior and biochemistry suggest they may have the ability to hibernate year-round, even though this species is not considered to be a true hibernator. This observation, plus the discovery of a hibernation-induction trigger (HIT) in the blood of black bears, prompted the examination of polar bear blood collected throughout the year for ...
D S, Bruce, N K, Darling, K J, Seeland, P R, Oeltgen, S P, Nilekani, S C, Amstrup   +5 more
openaire   +2 more sources

Antebrachial Fractures in Four Captive Polar Bears (Ursus maritimus)

Veterinary Surgery, 2005
Objective—To identify common risk factors for antebrachial fractures of captive polar bears and to evaluate outcome after fracture repair.Study Design—Retrospective study.Animals—Four captive polar bears.Methods—United States zoological collections were surveyed to determine the prevalence of fractures in captive polar bears. Medical records of captive
Rebecca C, Lin, Emmanuel, Engeli, Allan W, Prowten, Hollis N, Erb, Norm G, Ducharme, Laurie R, Goodrich   +5 more
openaire   +2 more sources

Agenesis of a radius in a polar bear cub (Ursus maritimus).

Journal of zoo and wildlife medicine : official publication of the American Association of Zoo Veterinarians, 1998
A polar bear (Ursus maritimus) cub, delivered by a cesarean section, was diagnosed with congenital agenesis of the radius on the basis of clinical presentation and radiology. A specific etiology could not be ascertained. Agenesis of the radius has not been previously reported in any nondomestic species.
C, Lanthier, J, Dupuis, J, Paré
openaire   +1 more source

Polar bear (Ursus maritimus) foraging ecology in spring

2015
Polar bears (Ursus maritimus) enter a period of intensified feeding in the spring, which allows for the accumulation of energy stores critical to surviving the open water season. Study on polar bear predation has been limited by sample size and spatial extent, and hypotheses on the demographic composition of seal kills and the spatial distribution of ...
openaire   +1 more source