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Biomedical subjects

W J Boever

Publications and source records attributed to W J Boever.

At least 19 recordsLinked to original sources
PubMed1991

Persistent cutaneous ulcers associated with feline herpesvirus type 1 infection in a cheetah.

Persistent cutaneous ulcers developed in a female cheetah cub after an episode of rhinotracheitis. When they were 3 weeks old, the cub and a male littermate developed mucopurulent oculonasal discharge consistent with feline herpesvirus type 1 infection (feline viral rhinotracheitis). The male cub was weaned and its lesions resolved. The female cub remained with the dam until the cub was 3 months old, at which time plaque-like lesions developed on the eye margins and muzzle. These plaques regressed over the next month and were replaced with cutaneous ulcers ranging from 1 to 10 mm in diameter. Feline herpesvirus type 1 was isolated from biopsy specimens collected from the ulcers. Cutaneous ulcers are uncommon manifestations of feline herpesvirus infections and have not been reported in other exotic fields. A proposed susceptibility to viral infections related to low genetic diversity has been proposed in cheetahs, and may be involved in the pathogenesis of persistent herpetic ulcers.

Acinonyx↗
PubMed1990

Acute monensin toxicosis in Stone sheep (Ovis dalli stonei), blesbok (Damaliscus dorcus phillipsi), and a Bactrian camel (Camelus bactrianus).

Accidental monensin toxicosis developed in 5 Stone sheep (Ovis dalli stonei), 5 blesbok (Damaliscus dorcas phillipsi), and a Bactrian camel (Camelus bactrianus) at the St Louis Zoological Park. Eight animals died acutely and 1 was euthanatized because of chronic hind limb paresis. All affected animals had clinicopathologic evidence of severe muscle necrosis, serum electrolyte disturbances, and hemoconcentration.

Animal Feed↗
PubMed1989

Idiopathic epilepsy in three gaur (Bos gaurus).

Idiopathic epilepsy was diagnosed in 3 gaur in a zoologic park collection during a 3-year period. Seizures were characterized by tonic rigidity of all limbs. Results of serum biochemical analysis, CBC, blood lead analysis, CSF analysis, and necropsy were within normal limits in all gaur. The role of heredity in development of seizures in these gaur is unclear because of limited founder stock of gaur in North America.

Animals↗
PubMed1988

Anatomy of the reproductive tract of the female African elephant (Loxodonta africana) with reference to development of techniques for artificial breeding.

Complete reproductive tracts of 30 female African elephants (5-53 years), obtained during a population reduction procedure, were examined. The reproductive tracts were palpated in situ via the urogenital canal. A plastic speculum (1.3 X 170 cm) was introduced into the canal and dye was injected to simulate the procedure for artificial insemination. The lengths of reproductive tracts (from the vulva to the ovary) ranged from 120 to 358 cm. The length increased with the size and age of the animal. There was a membranous constriction (hymen) with an orifice, less than 2 cm in diameter, between the urogenital canal and the vagina, in 4 primigravid and in all 13 nulliparous elephants. The vaginal orifice of 13 multiparous elephants consisted of ragged folds of mucous membrane surrounding a single opening, 5-19 cm in diameter. The ages at first conception of 4 pregnant elephants with intact hymenal membranes were 10, 12, 13 and 14 years. The hymen was not penetrated as a result of intromission and therefore the site of ejaculation would have been in the urogenital canal of the 4 primigravid elephants.

Aging↗
PubMed1983

Leucocytozoon simondi infection in European and American eiders.

An adult European eider (Somateria mollissima mollissima) died at the St Louis Zoo and was found to be infected with numerous blood and tissue stages of Leucocytozoon simondi. Necropsy revealed massive air sac aspergillosis, but histologic examination revealed a diffusely distributed protozoon organism that was identified as L simondi. Examination of tissues from a previously necropsied European eider and from 2 American eiders (Somateria mollissima dresseri) that later died also revealed evidence of L simondi infection.

Animals↗