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PubMed1998

Rectal stricture in an ostrich (Struthio camelus).

Exploratory celiotomy of an 18-mo-old female ostrich (Struthio camelus) with anorexia, lethargy, and constipation of 5 days' duration showed mesenteric volvulus and a focal narrowing of the rectum approximately 28 cm cranial to the cloaca. The prognosis was poor and the animal was euthanized. Necropsy revealed a fibrinonecrotic proctitis and a 3-cm-long circumferential stricture of the rectum. Histologically, the rectal wall at the stricture was deeply effaced by fibrovascular connective tissue with vascular thrombosis and necrotizing vasculitis, and it resembled the lesions in feeder pigs with fibrinonecrotic colitis.

Animals↗
PubMedDate not supplied

Microsporidiosis in a young ostrich (Struthio camelus).

Microsporidia are obligate, intracellular, protozoan parasites of a wide variety of vertebrates and invertebrates. Confirmed reports of microsporidial infection of avian species are few (lovebirds, a parrot, and a group of budgerigar chicks). At slaughter, a 14-mo-old ostrich was found to have small intestinal serosal hemorrhages during postmortem inspection. Histologic examination of the small intestine revealed a chronic lymphoplasmacytic to purulent enteritis with mucosal hyperplasia, muscular hypertrophy, and numerous microsporidia that were located within the superficial enterocytes and the lamina propria. Microsporidia have a ubiquitous distribution in nature and are suspected as possible zoonotic agents.

Animals↗