Abstract
Tick populations were monitored between October 1991 and September 1992 at monthly intervals on 10 Boran (Bos indicus) heifers at Didtuyura ranch, Yabelo district, Ethiopia. Twelve different tick species in four genera were identified from a total of 16 026 specimens collected. Of all the ticks collected, Rhipicephalus spp. constituted 84.7%, Amblyomma spp. 9.9%, Boophilus spp. 4.8% and Hyalomma spp. 0.24%. The ventral parts of cattle were found to be the most favoured feeding sites for most of the ticks collected. The size ranges of the standard ticks collected were 4–8 mm; 9–16 mm; 4–8 mm and 8–13 mm for R. pulchellus, A. variegatum, B. decoloratus and A. gemma, respectively, while their respective male to female sex ratios were 2:1; 3.2:1; 1:5.4 and 2.6:1. Packed cell volume (PCV) values of blood samples taken from 600 cattle were monitored monthly during the study period. There was a reduction in PCV during the dry season of the year but generally the values were within the normal range of 32–40%. The parasites causing anaplasmosis, babesiosis and theileriosis (T. mutans) were detected by microscopic examination of blood smears and serologically (ELISA) at seroprevalence rates of 94.68%, 77.19% and 30.9% respectively.
Résumé
Au ranch de Didtuyura, district de Yabelo en Ethiopie, les populations des tiques ont fait l’objet de suivi sur 10 génisses de zébu (Bos indicus), entre septembre 1991 et octobre 1992, avec un mois d’intervalle entre les observations. A partir de 16.026 specimens de tiques collectées, on a identifié douze espèces différentes, réparties en quatre genres. De toute la collection des tiques échantillonnées on a dénombré 84,7% de Rhipicephalus spp., 9,9% d’Amblyoma spp., 4,8 % de Boophillus spp. et 0,24% de Hyalomma spp. Les parties de la région ventrale du corps des animaux constituaient des sites les plus préférés de prise de repas pour la plupart des tiques collectées. La taille des tiques normales se rangeait respectivement entre 4–8 mm; 9–16 mm; 4–8mm et 8–13mm pour R. pulchellus, A. variegatus, B. decoloratus et A. gemma, tandis que le rapport respectif du nombre de mâles par rapport aux femelles par espèce, était de 2:1; 3,2:1; 1:5,4 et de 2,6:1. Le volume du culot plasmatique de sang prélevé sur 600 animaux était aussi mesuré mensuellement pendant toute la durée de l’étude. Il a été constaté une diminution du volume du culot plasmatique pendant la saison sèche mais ces valeurs se situaient généralement dans la fourchette des valeurs normales qui sont de l’ordre de 32–40%. Les examens microscopiques par frottis de sang et sérologiques par méthodes (ELISA) ont révélé 94,68%; 77,19% et 30,9% de cas de séropositivité pour l’anaplasmose, la babésiose et la théilériose (T. mutans) respectivement.
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References
Andrews R. H. and Petney T. N. (1981) Competition for sites of attachment to hosts in three parasitic species of reptile tick. Ecology 51, 227–232.
Andrews R. H., Petney T. N. and Bull C. M. (1982) Niche changes between parasite populations. An example from ticks of reptiles. Oecologia (Berl.) 55, 77–78.
Dalgliesh R. J., Jorgensen W. K., de Vos A. J. (1990) Australian frozen vaccines for the control of babesiosis and anaplasmosis in cattle. A review. Trop. Anim. Hlth. Prod. 22, 44–52.
De Castro J. J.(1994) Tick survey in Ethiopia. A survey of tick species in western Ethiopia including previous findings and recommendation for further tick survey in Ethiopia. UNDP/FAO, Rome.
Dejenu G. (1988) A preliminary survey of ticks on domestic animals in Bale administrative region. DVM thesis, Faculty of Veterinary Medicine, Addis Ababa University, Debrezeit, Ethiopia.
Eshetu M. (1988) Survey of geographical distribution of ticks in Gondar awraja. DVM thesis. Faculty of Veterinary Medicine, Addis Ababa University, Debrezeit, Ethiopia.
Evans G. O. (1952) The distribution of Ixodes ricinus (L) on the body of cattle and sheep. Bull. Ent. Res. 41, 709–723.
Feseha G. (1983) Notes on ticks species and tick-borne diseases of domestic animals in Ethiopia. DVM thesis, Addis Ababa University, Faculty of Veterinary Medicine, Debrezeit, Ethiopia.
Fivaz B. H., Waal D. T. and Lander K. (1992) Indigenous and crossbred cattle. A comparison of resistance to ticks and implications for strategic control in Zimbabwe. Trop. Anim. Hlth.Prod. 24, 81–89.
Gulilat A.(1987) Survey of ticks on domestic animals in Hararge Administrative region. DVM thesis, Faculty of Veterinary Medicine, Addis Ababa University, Debrezeit, Ethiopia.
Hoogstraal H. (1956) African Ixodoidea, 1. Ticks of the Sudan. Bureau of Medicine and Survey, Department of the Navy, Washington DC.
Jewaro A. (1986) A survey of ticks and tick-borne diseases in Gamogofa administrative region. DVM, thesis, Faculty of Veterinary Medicine, Addis Ababa University, Debrezeit, Ethiopia.
Kaiser M. N. (1987) Consultancy report for Eth./83/ 023, “Tick survey project” on tick taxonomy and biology. FAO, Rome.
Kaiser M. N., Bourne R. W., Gorissen L. and Floyd R. B. (1988) Population dynamics of ticks on Ankole cattle in 5 ecological zones in Burundi and strategies for their control. Prev. Vet. Med. 6, 199–222.
Kaiser M. N., Sutherst R. W. and Bourne A. S. (1982) Relationship between ticks and Zebu cattle in Southern Uganda. Trop. Anim. Hlth. Prod. 14, 63–74.
Katende J. M., Goddieries B. M., Morzaria S. P., Nkonge C. G. and Musoke A. J. (1990) Identification of a Theileria mutans specific antigen for use in the antibody and antigen detection ELISA. Parasite Immunol. 12, 419–433.
Latif A.A. and Pegram R. G. (1992) Naturally acquired host resistance in tick control in Africa. Insect Sci. Applic. 13, 505–513.
Macleod J., Colbo M. H., Madbouly M. H. and Mwanaumo B. (1977) Ecological studies of Ixodid ticks in Zambia. III. Seasonal activity and attachment sites on cattle, with notes on other hosts. Bull. Ent. Res. 67, 161–173.
Manueri K. K. and Tilahun J. (1991) A survey of ecto-parasites of cattle in Harar and Diredawa Districts, Harargahe administrative region of Ethiopia. Bull. Anim. Hlth. Prod. Afr. 39, 15–24.
Mathysee J. E. and Colbo M. H. (1987) Ixodid ticks of Uganda. Entomol. Soc. Am., College parad. MD.
Mohamed A. N. (1977) The seasonal incidences of ixodid ticks of cattle in Northern Nigeria. Bull. Anim. Hlth. Prod. Afr. 24, 211–342.
Morel P. C. (1980) Study of Ethiopian ticks (Acarina: Ixodidae). Ministry of Foreign Affairs, France, IFMVT.
Morzaria S., Ketende J., Kairo A., Nene V. and Musoke A. (1992) New methods for the diagnosis of Babesia bigemina infection. Memb. Inst. Osvaldo Cruz, Rio de Janeiro, Vol. 87, Suppl. 11, 201–205.
Osman O. M., Hussein A. M., Ahmed N. and Abdulla H. S. (1982) Ecological studies on ticks of Kordofan region. Sudan Bull. Anim. Hlth. Prod. 30, 45–53.
Pegram R. G. and Lemche J. (1985) Observations on the efficacy of ivermectin in the control of cattle ticks in Zambia. Vet. Res. 117, 551–554.
Pegram R. G., Hoogstral H. H. and Wassef H. V. (1981) Ticks of Ethiopia. I. Distribution, ecology and the host relationships of tick species infesting livestock. Bull. Ent. Res. 71, 339–359.
Sebsibe B. (1988) A preliminary survey of tick distribution in the southern Sidamo. DVM thesis, Faculty of Veterinary Medicine, Addis Ababa University, Debrezeit, Ethiopia.
Sutherst R. W., Wharton R. H. and Utech K. B. W. (1978) Guide to studies on tick ecology. Commonwealth Scientific and Industrial Research Organisation. Division of Entomology, Australia. Technical Bulletin No. 14, Melbourne, 59 pp.
Tatchell R. J. and Easton E. (1986) Tick ecological studies in Tanzania. Bull. Ent. Res. 76, 229–246.
Walker J. B. (1974) The Ixodid Ticks of Kenya. A Review of Present Knowledge of Their Hosts and Distribution. 220 pp. Commonwealth Institute of Entomology, London.
Wilkinson P. R. (1972) Sites of attachment of “Praire” and “Montane” Dermacentor andersoni (Acarina: Ixodidae) on cattle. J. Med. Entomol. 9, 133–137.
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Solomon, G., Kaaya, G.P., Gebreab, F. et al. Ticks and Tick-Borne Parasites Associated with Indigenous Cattle in Didtuyura Ranch, Southern Ethiopia. Int J Trop Insect Sci 18, 59–66 (1998). https://doi.org/10.1017/S1742758400007475
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DOI: https://doi.org/10.1017/S1742758400007475
Key Words
- tick species
- Bos indicus
- Rhipicephalus pulchellus
- Amblyomma variegatum
- A. gemma
- Boophilus decoloratus
- anaplasmosis
- babesiosis
- theileriosis