Fetal losses and pathologic findings of clones derived from serum-starved versus serum-fed bovine ovarian granulosa cells.

The objective was to evaluate development of cloned embryos constructed with serum-starved versus fed ovarian granulosa cells. Fusion of somatic cells with cytoplasts (50.7 and 50.

Determination of the acute 50% lethal dose T-2 toxin in adult bobwhite quail: additional studies on the effect of T-2 mycotoxin on blood chemistry and the morphology of internal organs.

Three experiments were conducted to assess mortality rate, blood chemistry, and histologic changes associated with acute exposure to T-2 mycotoxin in adult bobwhite quail. In Experiment 1, adult quail were orally dosed with T-2 toxin to determine the lethal dose that resulted in 50% mortality of the affected population (LD50), and that dose was determined to be 14.7 mg of T-2 toxin per kilogram of body weight (BW).

Adult-onset hypothyroidism in a lynx (Lynx canadensis).

A 19-yr-old female lynx (Lynx canadensis) presented for an acute onset of anorexia and reluctance to move. Physical examination, radiography, hematology, and serum biochemistry revealed evidence of renal failure, presumptive uremic gastritis, chronic intervertebral disk disease at T13-L1, and markedly low serum levels of total thyroxine (1.54 nmol/L) and total triixodothyronine (0.

Interobserver variation among histopathologic evaluations of intestinal tissues from dogs and cats.

Objective: To determine whether substantial interobserver variation exists among diagnostic pathologists for descriptions of intestinal mucosal cell populations and whether histopathologic descriptions accurately predict when a patient does not have clinically evident intestinal disease.

Design: Comparative survey. Sample Population-14 histologic slides of duodenal, ileal, or colonic tissue from 10 dogs and 3 cats.

Diagnosis and Treatment of Trichospirura leptostoma Infection in Common Marmosets (Callithrix jacchus).

Trichospirura leptostoma is a spirurid nematode that inhabits the pancreatic ducts of the common marmoset, Callithrix jacchus, and other New World primates. This parasite was diagnosed in members of this species at the Marmoset Research Center in Oak Ridge, Tennessee colony after their importation from multiple colonies outside the United States. Animals with few parasites in the pancreas had few tissue changes, whereas those with many parasites had moderate to severe fibrosis replacing exocrine tissue.