Isolation of Salmonella victoria from a cow

Extract

At the end of January 1972, specimens were submitted to this laboratory from a cow in the Geraldine district, which was one of three that died suddenly after transfer to a new, clover-dominant pasture. All apparently died from the same cause and post-mortem examination revealed reddened external mucosae, froth at nostrils, and gas distension of the carcasses. In addition, there was mild reddening of abomasal mucosa, severe reddening of intestinal mucosa, and congestion of the liver and lungs. Enterotoxaemia, salmonellosis, blood poisoning or irritant poisoning was suspected.     

Armourer and mad cow disease: images of veterinarians in music

This contribution is not about animals in music; it rather attempts to describe how veterinary medicine as a discipline and veterinarians as representatives of the profession are perceived of and portrayed in music. Aside from Gioacchino Rossini's "Barber of Seville", in which Count Almaviva impersonates a veterinarian of the day, the most sympathetic veterinarian character ever created by a lyricist or composer in surely Hans Stadinger, the "armourer" and vet in Albert Lortzings opera. In other musical genres such as artsongs and folksongs, the only such figure worthy of musical interpretation seems to have been those masters of the fiery forge who were also wise in the veterinary healing arts. In the past 20 years vets and veterinary medicine have been included in new musical trends: There are musicals and radio plays in which even the youngest members of the audience are exposed to the veterinarian profession. A number of pop groups are also to be mentioned here. For example, animal welfare has been thematized by punk rockers, and a pop group for Hamburg has put a medieval horse blessing to music. Last but not least, a number of vets in Berlin turn their everyday troubles and worries into musical parodies.     

Plasma biochemistry in pigeons experimentally infected with Salmonella.

Ten pigeons were crop inoculated with 1 x 10(9) colony-forming units of Salmonella typhimurium var. Copenhagen and observed during 28 days. Ten sham-inoculated pigeons served as noninfected controls. Clinical signs after Salmonella infection consisted of polydipsia, polyuria, and diarrhea. Morbidity was 90%, but there was no mortality. All inoculated pigeons showed fecal excretion of Salmonella for at least 7 days. Biochemical analysis of plasma samples taken at 3-day intervals indicated decreased concentrations of creatine kinase (CK)-MM and CK-MB isoenzymes and elevated total protein and alpha- and gamma-globulin values. No consistent changes in the level of 17 other blood parameters were observed. After 28 days, all pigeons were necropsied. Gross lesions and bacteriologic and histologic examination indicated septicemia in all Salmonella-inoculated pigeons. Results indicate that Salmonella septicemia in pigeons induces only limited changes in biochemical blood parameters. Decreased CK concentration was a consistent finding, however, and may therefore be a useful aid in the diagnosis of salmonellosis in pigeons.     

Persistent shedding of Salmonella enteritidis from the udder of a cow

Salmonella enteritidis phagetype 8 was isolated from ill humans, milk-line filters, milk from a bulk tank, and milk from the right hind quarter of a five-year-old Holstein cow on a dairy farm in southern Alberta. The affected animal was removed from the herd and continued to shed S. enteritidis from this quarter during a seven-month interval in an isolation facility. Milk from the affected quarter was visually normal, and no other pathogen was isolated from the udder during the investigation. After removal of the infected cow from the herd, milk from the bulk tank was culturally negative for Salmonella sp. during the succeeding 15 months.     

Villous atrophy in pigs orally infected with Salmonella cholerae-suis.

The macroscopic and microscopic appearance of villous atrophy in weaned pigs orally infected with Salmonella cholerae-suis is described. The other intestinal diseases of pigs in which villous atrophy occurs are discussed.     

Corynebacterium folliculitis in a horse

A 7-year-old Thoroughbred was examined for evaluation of mildly pruritic multiple skin lesions that had progressed from nodules to alopecia and crusts. Folliculitis caused by Corynebacterium pseudotuberculosis was diagnosed by bacterial culture. Oral treatment with a trimethoprimsulfadiazine paste resulted in resolution of all lesions, with normal hair regrowth.     

Ocular lymphangiosarcoma in a cow.

Ocular lymphangiosarcoma was diagnosed in a Holstein cow with a progressively enlarging limbal mass. The cow was treated by exenteration. The cow survived for 2 years without clinical signs of recurrence. Lymphangiosarcoma is a vascular neoplasm that rarely has been reported in domestic animals. In other species, it has a high rate of metastasis and is associated with poor long-term survival.     

Mixed thymoma in a cow.

A neoplastic mass measuring 25 x 8 x 3 cm was found in the mediastinum of a 10-year-old Holstein cow. The neoplasm was encapsulated, multilobulated, and cystic. Several firm adhesions were present between the neoplasm and the right cranial lung lobe and the ipsilateral side of the pericardial sac. Under microscopic examination, the neoplasm was characterized by solid sheets of spindle epithelial cells (pancytokeratin and high molecular weight cytokeratin positive) subdivided by fibrous trabeculae. Numerous individualized or small aggregates of mature T-cell (CD3 positive) lymphocytes were scattered throughout the neoplastic cell population. Based on the gross, histologic, and immunohistochemical findings, the neoplasm was diagnosed as a mixed thymoma.     

Listeriosis in a Holstein cow.

Bovine listeriosis is a sporadie bacterial infection most commonly manifested by encephalitis or meningoencephalitis in adult animals. Cattle fed poorly fermented haylage or corn silage are at increased risk. Mortality is high without early antibiotic and supportive therapy. Listeria monocytogenes can affect many species and is a public health concern.     

Intestinal leiomyoma in a cow.

A 10-year-old white Fulani Bunaji cow with clinical signs of ruminal stasis and melaena, was euthanised following discovery of a neoplasm in the spiral colon. Histopathological examination revealed a leiomyoma.