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Biomedical subjects

N C Stuart

Publications and source records attributed to N C Stuart.

6 recordsLinked to original sources

Poisoning of dairy heifers by mercurous chloride.

Mercury poisoning was diagnosed in four dairy heifers, three of which died. The clinical signs were variable and included salivation, excessive thirst, extreme depression and severe diarrhoea. Postmortem examinations revealed inflammation and ulceration of the alimentary tract, pulmonary and cardiac haemorrhages, pallor of the kidney cortices and perirenal oedema. The kidney mercury concentrations were in the range 58 to 91 micrograms/g wet tissue. It is believed that the animals were poisoned by the ingestion of soil contaminated with mercurous chloride.

Animals↗

Parapox infection in grey seals (Halichoerus grypus) in Cornwall.

In the winter of 1991/92 there was an outbreak of parapox infection in grey seals (Halichoerus grypus) around the coast of Cornwall. Pups were cared for at a seal rehabilitation centre and the infection occurred in most of them. The presence of parapox virus was confirmed by electron microscopy. The clinical and pathological findings, together with details of the morphology of the virus, are compared with those in previous outbreaks in North America.

Animals↗

Treatment of fish disease.

The treatment of fish diseases is relatively unsophisticated. Administration of drugs may be by solution in water, incorporation in feed or by injection. Many of the drugs used are traditional remedies although antibiotics and anaesthetics are being increasingly employed. The efficacy of the drugs may be affected by various environmental factors such as pH, the presence of organic matter and temperature. Some of the drugs may themselves affect the environment by destroying plants or bacterial filters.

Anesthesia↗

Diseases of farmed fish: non-salmonids including eels and crustacea.

All cultured fish are subject to very similar parasitic and bacterial conditions. These disease outbreaks are often stress mediated due to adverse environmental factors. The non-salmonid fishes are affected by a number of specific viral diseases which may vary from mild skin infections to systemic conditions resulting in high mortality. Nutritional diseases may be associated with dietary deficiencies or inclusion of toxic products in artificial feeds.

Animal Husbandry↗