Toxic effects of natural saline waters on mallard ducklings.

Water from 10 saline wetlands in Saskatchewan was provided as drinking water for 1-day-old mallards (Anas platyrhynchos). Ducklings given water with conductivity from 3,750 to 7,490 microns hos/cm grew as well as birds on fresh water during a 14-day trial, but birds given water with conductivity of 4,000 microns hos/cm grew poorly during the last 2 wk of a 28-day trial. Ducklings given water with conductivity of 7,720 micron hos/cm grew poorly during a 14-day trial.

Effects of sodium and magnesium sulfate in drinking water on mallard ducklings.

One-day-old mallard (Anas platyrhynchos) ducklings were given drinking water for up to 28 days that contained concentrations of sodium and/or magnesium similar to those found in saline wetlands. Growth, tissue development, and biochemical characteristics of these ducklings were compared to those reared on fresh water. Much of the ingested salt was excreted by passage of voluminous fluid excreta.

Plasma cell sarcoma in a cat.

Lytic lesions occurring in conjunction with plasma cell sarcoma (multiple myeloma) have rarely been reported in cats.A plasma cell sarcoma was diagnosed in a 13 year old castrated male Siamese cat with hind limb paresis resulting from osteolysis of the second lumbar vertebra. Serum electrophoresis showed a monoclonal gammopathy.

Malignant thymoma with widespread metastases in a dog: case report and brief literature review.

A malignant thymoma of epithelial type with metastases to the liver, spleen and bone marrow in a 16 year old female Cocker Spaniel dog is described. Lesions were considered to be incidental findings at necropsy.

Intracranial schwannoma in a cow.

A nine year old Hereford crossbred cow with a history of progressive neurological signs was referred to the Western College of Veterinary Medicine, Saskatoon. A large intracranial mass, histologically identified as a schwannoma, was found to be compressing the left brain stem and appeared to have arisen from the left fifth cranial nerve.