Lesions In Horses Research Articles

Clinical survey of tumours and tumour-like lesions in horses in south east Queensland.

The results of a retrospective survey of tumours and tumour-like lesions encountered in horses in a veterinary practice in south east Queensland between 1956 and 1978 are presented. Forty-two per cent of the lesions were examined histologically. The most commonly occurring neoplasms were the equine sarcoid, papilloma and squamous cell carcinoma of the eye and external genitalia. Neurofibroma was an important problem in the eyelid region. Intra-abdominal tumours were rarely encountered in this series.

Trichophyton equinumvar.Autotrophicum; Its characteristics and geographical distribution

“As for the horse, it appears to be one of the animals most often afflicted with ringworm, and the variety of them is nearly as great as that of ringworms of man” (Sabouraud, 1903)The morphological and nutritional characteristics and experimental pathogenicity of typical nicotinic-acid requiring strains of Trichophyton equinum were compared with atypical nonnicotinic acid strains from New Zealand and Australia. Apart from this nutritional dependancy and slight variations in reverse pigmentation, both types were similar. Under the conditions of our experiments, atypical strains produced larger lesions in horses than did typical strains of T. equinum but the difference was not useful diagnostically. Infections with either the nicotinic acid requiring or the non-requiring strains resulted in resistance to re-infection with both the homologous and heterologous variety. The atypical strains have been named Trichophyton equinum var. autotrophicum to indicate their less exacting nutritional requireme...

Studies of the genus Clostridium. 3. The taxonomic study of the genus Clostridium with special reference to the organism isolated from the digestive tract and the soil

A total of 436 strains were subjected to a taxonomical survey. All of them wereof spore-forming, obligatory anaerobic, Gram-positive or negative catalase-negative rods.Of them, 418 strains had been isolated from the feces or intestinal contents of black Neo-pards, leopards, tigers, cheetahs, pumas, jaguar, chickens, horses, cattle, pigs, dogs, cats>rabbits, ferrets, guinea pigs, mice and seal, lesions in horse and cattle, the tonsils of dogs, the uterus of cattle, soil, and silage, the remaining 18 strains were named stock cultures.The results obtained were as follows.l. The genus Clostridium was divided into four sub-genera, sixteen groups, on thebasis of four characters ; namely, the shape of the spore, rnotiNity, liquefaction of gelatin, and the growth type in iron-milk medium.2. Further studies are necessary to achieve the classification of this genus by thebiological and serological features, pathogenicity, and source of origin.