Уточнить поиск
Результаты 141-150 из 271
Effect of an aqueous extract of Azadirachta indica on the immune response in mice
1999
Njiro, S.M. (Nairobi Univ. (Kenya). Dept. of Veterinary Pathology and Microbiology) | Kofi-Tsekpo, M.W.
Gastro-intestinal parasites of cattle in the communal grazing system of Botshabelo in the Free State [South Africa]
1999
Dreyer, K. | Fourie, L.J. | Kok, D.J. (Orange Free State Univ., Bloemfontein (South Africa). Dept. of Zoology and Entomology)
Ecological studies of helminth parasites of the largemouth bass, Micropterus salmoides, from Lake Naivasha and the Oloidien bay, Kenya
1999
Aloo, P.A. (Aquatic Research Centre, Nairobi (Kenya))
Assessment of cattle owners' perceptions and expectations, and identification of constraints on production in a peri-urban, resource-poor environment
1999
Dreyer, K. | Fourie, L.J. | Kok, D.J. (Orange Free State Univ., Bloemfontein (South Africa). Dept. of Zoology and Entomology)
The parasitological and serological prevalence of tsetse-transmitted bovine trypanosomosis in the Eastern Caprivi (Caprivi District, Namibia)
1999
Van den Bossche, P. | Mudenge, D. (Regional Tsetse and Trypanosomosis Control Programme, Harare (Zimbabwe)) | Mubanga, J. | Norval, A.
Detection of Mycoplasma gallisepticum and Mycoplasma synoviae antibodies in the sera of indigenous chickens by rapid serum agglutination test at Mmopane, Gaborone, Botswana
1999
Mushi, E.Z. (Botswana College of Agriculture, Gaborone (Botswana)) | Binta, M.G. | Chabo, R.G. | Mathaio, M. | Ndebele, R.T.
Anthelmintic resistance in South Africa: Surveys indicate an extremely serious situation in sheep and goat farming
1999
Van Wyk, J.A. (Pretoria Univ., Onderstepoort (South Africa). Dept. of Veterinary Tropical Diseases) | Stenson, M.O. | Van der Merwe, J.S. | Vorster, R.J. | Viljoen, P.G.
An anatomical study of the respiratory air sacs in ostriches
1999
Bezuidenhout, A.J. | Groenewald, H.B. | Soley, J.T. (Pretoria Univ., Onderstepoort (South Africa). Faculty of Veterinary Science)
Evaluation of coloured targets for the attraction of Glossina brevipalpis and Glossina austeni (Diptera: Glossinidae) in South Africa
1999
Kappmeier, K. | Nevill, E.M. (Agricultural Research Council, Onderstepoort (South Africa). Onderstepoort Veterinary Inst.)
Presence of antibodies to canine distemper virus, canine parvovirus and canine adenovirus type 1 in free-ranging jackals (Canis adustus and Canis mesomelas) in Zimbabwe
1999
Spencer, J.A. (Pretoria Univ., Onderstepoort (South Africa). Faculty of Veterinary Science) | Bingham, J. | Heath, R. | Richards, B.
