Animal Health
Permanent URI for this collectionhttps://kalroerepository.kalro.org/handle/123456789/13965
Browse
Browsing Animal Health by Subject "agents"
Now showing 1 - 2 of 2
- Results Per Page
- Sort Options
Item Isolation of Ehrlichia risticii, the causative agent of Potomac horse fever, from the fetus of an experimentally infected mare(1987) Dawson, J. E.; Ristic, M,; Holland, C. J.; whitlock, R. H.; Session, J.TWELVE crossbred Hereford calves were divided into two groups and fed concentrate diets containing either 0•2 per cent or 0•75 per cent sulphur, with free access to hay and water for 85 days. There were no significant differences between the groups in terms of the activities of the enzymes glutathione peroxidase, glucose-6-phosphate dehydrogenase and acetyl cholinesterase or plasma aspartate aminotransferase, nor in blood selenium concentrations, bodyweight gains or clinical health. The results show that moderate increases in dietary sulphur concentration should not impair selenium or copper metabolism or cause related disorders in cattle.Item Preventing Onchocerciasis through Blackfly Control(1972) Kenya Trypanosomiasis Research InstituteABSTRACT: Human onchocerciasis, which produces disability and /or blindness among millions of Africans, is caused by a filarioid worm transmitted by blackfies. Control of the blackfty has been attempted mainly with chemical pesticides, but supplementary biological methods of greater environmental acceptability are needed. Mermithids, which parasitize blackflies, are widely regarded as the leading candidates: in North America more than 95% mortality occurs in some populations of blackflies parasitized by certain genera of mermithids. A collaborative project is outlined between the Organisation de Coordination et de Cooperation pour la Lutte contre les Grandes Endemies, which covers eight francophone West African countries, and Memorial University of Newfoundland, Canada, for investigation of the feasibility of using mermithids as blackfty control agents in Africa. The project, which would take five years, involves studies of the biology and ecology, and methods of mass production of mermithids, as well as field trials. It also includes a training component for African students.
