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Tsetse and Bovine Trypanosomosis Incidence at Egbe in the Derived Savanna Zone of Nigeria

Published online by Cambridge University Press:  19 September 2011

George A. Omoogun  and
O. A. Akinboade
George A. Omoogun
Affiliation:
Nigerian Institute for Trypanosomiasis Research, P.M.B. 03, Vom, Plateau State, Nigeria
O. A. Akinboade
Affiliation:
Department of Veterinary Microbiology and Parasitology, University of Ibadan, Ibadan, Nigeria
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Abstract

A two-year survey was undertaken to determine the trypanosomosis risk of Egbe, a town in Kogi state of Nigeria, and its suitability for cattle raising. Tsetse flies were trapped using biconical traps and examined for trypanosome infection, and blood samples from cattle and goats were examined by blood film and haematocrit centrifugation technique (HCT) for trypanosome parasites. No infection was detected from the 152 Glossina palpalis palpalis and 52 G. tachinoides dissected over the period. Blood film examination of 181 cattle and 14 goats also gave negative results. Examination by HCT of 21 cattle from a local abattoir showed 14.3% Trypanosoma vivax infection, but the 10 resident cattle and 14 goats similarly examined were negative. The average age of the caught flies, determined by mean wing fray values (for males) and ovarian analysis (for females), was between 11 and 14 days, which is too low to sustain an infective population. Coupled with the absence of G. morsitans submorsitans, the most important vector of animal trypanosomosis in Nigeria, and the disappearance of large game from Egbe, our results would point to the area being a low trypanosomosis risk one.

Résumé

Une enquête a été menée sur une période de deux ans afin de déterminer le degré du risque de trypanosomiase à Egbe, une ville dans l'état fédéral de Kogi au Nigéria, et son importance dans l'élevage du bétail. Les mouches tsé-tsé ont été capturées au moyen des pièges biconiques puis examinées pour leur infection par les trypanosomes. De même des échantillons de sang prélevés des vaches et chèvres ont été examinés par frottis et par centrifugation du sang pour détecter les trypanosomes. Aucune infection n'a été détectée dans 152 mouches de Glossina palpalis et 52 G. tachinoides disséquées au cours de la période. L'examen des frottis de sang de 181 vaches et de 14 chèvres a également donné des résultats négatifs. L'examen par centrifigation de sang provenant de 21 vaches d'un abattoir local a montré 14,3% d'infection de Trypanosoma vivax, mais 10 vaches et 14 chèvres aux alentours examinées par la même technique ont donné des résultats négatifs. L'âge moyen des mouches attrapées se situait entre 11 et 14 jours tel que déterminé par la longueur de l'effilochure des ailes (pour les mâles) et l'examen des ovaires (pour les femelles). Cet âge était trop bas pour donner lieu à une population contagieuse. Compte tenu de à l'absence de G. morsitans submorsitans, le vecteur le plus important de trypanosomiase animale au Nigéria et sa disparition du complexe d'Egbe, nos résultats débouchent sur la conclusion que la zone comporte un bas risque de trypanosomiase.

Keywords

trypanosomosis riskEgbeNigeriacattle populationrelocationGlossina palpalis palpalisGlossina tachinoidesGlossina morsitans submorsitansGlossina longipalpisTrypanosoma vivaxbas risque de trypanosomiaseEgbeNigériacheptel bovinrelocalisationGlossina palpalis palpalisGlossina tachinoidesGlossina morsitans submorsitansGlossina longipalpisTrypanosoma vivax
Type
Short Communications
Information
International Journal of Tropical Insect Science , Volume 20 , Issue 3 , September 2000 , pp. 215 - 219
Copyright
Copyright © ICIPE 2000

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References

REFERENCES

Ashcroft, M. T. (1959) The importance of African wild animals as reservoirs of trypanosomosis. E. Afr. Med. J. 36, 289–297.Google Scholar
Baldry, D. A. T. (1967) A species list of the tsetse flies genus Glossina (Diptera: Muscidae) in Nigeria. Nigerian Ent. Mag., 1, 44.Google Scholar
Baldry, D. A. T. (1969) Distribution and trypanosome infection rates of Glossina morsitans submorsitans Newst. along a trade cattle route in south-western Nigeria. Bull. ent. Res. 58, 537–548.CrossRefGoogle Scholar
Baldry, D. A. T. and Riordan, K. (1967) A review of 50 years entomology of insect-borne diseases of veterinary importance in Nigeria, with special reference to tsetse flies and trypanosomosis. Proc. Ent. Soc. Nigeria 1967, 43–55.Google Scholar
Bature, F. (1985) Management problems in tsetse (Glossina) control: The Nigerian experience. Project written up for the Advance Management Course AMC 12/85 of the Administrative Staff College of Nigeria (ASCON), Topo, Badagry, 7 Sept.–18 Oct. 1985.Google Scholar
Bourn, D., Milligan, K. and Wint, W. (1986) Tsetse, trypanosomiasis and cattle in a changing environment, pp. 85–109. In Livestock Systems Research in Nigeria's Subhumid Zone (Edited by Von Kaufmann, R., Chater, S. and Blench, R.). Proceedings of the 2nd ILCA/NAPRI Symposium, Kaduna, Nigeria, 29 October –2 November (1984). ILCA, Addis Ababa.Google Scholar
Buxton, P. A. (1955) The natural history of tsetse flies. Mem. Land. Scli. Hyg. Trop. Med. No.10, London, Lewis, 816 pp.Google Scholar
Challier, A. and Laveissiere, C. (1973) Un nouveau piege pour la capture des glossines (Glossina: Diptera, Muscidae): Description et essais sur le terrain. Cali. ORSTOM ser. Ent. Med. Parasitol. 11, 251–262.Google Scholar
Davies, H. (1964) The eradication of tsetse in the Chad river system of Northern Nigeria. .J. Appl. Ecol. 2, 387–403.Google Scholar
Davies, H. (1977) Tsetse flies in Nigeria. 3rd ed.Oxford University Press, Ibadan. 340 pp.Google Scholar
Desowitz, R. S. and Fairbairn, H. (1955) The influence of temperature on the length of the developmental cycle of G. palpalis. Ann. Trop. Med. Parasitol. 46, 92.Google Scholar
Fairbairn, H. and Culwick, A. T. (1950) The transmission of the polymorphic trypanosomés. Acta trop. 7, 19–47.Google Scholar
Ford, J. (1971) The Role of the Trypanosomiases in African Ecology: A Study of the Tsetse Fly Problem. Clarendon Press, Oxford, 568 pp.Google Scholar
Hoare, C. A. (1970) Systematic description of the mammalian trypanosomes of Africa, pp. 24–59. In The African Trypanosomiases (Edited by Mulligan, H. W. and Potts, W. H.). Allen and Unwin, London.Google Scholar
Jordan, A. M. (1965) The hosts of Glossina as the main factor affecting trypanosome infection rates of tsetse flies in Nigeria. Trans. R. Soc. Trop. Med. Hyg. 59, 423 –431.Google Scholar
Jordan, A. M. (1974) Recent developments in the ecology and methods of control of tsetse flies (Glossina spp.) (Dipt., Glossinadae)—a review. Bull. Ent. Res. 63, 361 –399.Google Scholar
Keay, R. W. J. (1953) An Outline of Nigerian Vegetation. 2nd ed. Government Press, Lagos. 55 pp.Google Scholar
MacLennan, K. J. R. (1976) Summary of the present situation concerning the epidemiology of tsetse transmitted animal trypanosomiasis. Joint WHO Expert Committee and FAO Expert consultation on the African Trypanosomiasis. AGA TRYP/WP/76.36.Google Scholar
Omoogun, G. A. (1987) Studies on some aspects of the biology of tsetse flies in the Egbe area of Kwara state, Nigeria. PhD thesis, University of Ibadan, Ibadan, Nigeria. 295 + (28) pp.Google Scholar
Onyiah, J. A. (1979) A preliminary report on ecological studies of Glossina species in the derived savanna zone of Nigeria. ISCTRC, Yaounde (Camèroun) 1979, 357–363.Google Scholar
Pollock, J. N. (1982) Training Manual for Tsetse Control Personnel. Vol. 1, 91–122. FAO Publication Xo.M/P5178/E.Google Scholar
Putt, S. N. H., Shaw, A. P. M., Matthewman, R. W., Bourn, D. M., Underwood, M., James, A. D., Hallam, M. J. and Ellis, P. R. (1980) The social and economic implication of trypanosomiasis control. A study of its impact on livestock production and rural development in Northern Nigeria. University of Reading, Vet. Epid. and Econ. Res. Unit, Study No. 25, 525 + (24)pp.Google Scholar
Saunders, D. S. (1962) Age determination for female tsetse flies and the age compositions of samples of Glossina pallidipes Aust., G. palpalis fuscipes N'evs'st. and G. brevipalpis Newst. Bull. Ent. Res. 53, 579–595.Google Scholar