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| Distribution of Ixodid Ticks on cattle in Great Bahr El Ghazal Region, South Sudan |
Al Shaekh, A.I.; Mohammed, A. A.; Ahmed, E. A. and Salih, D.A.
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Abstract:
A cross sectional survey was conducted during June to November, 2015 in localities of Northern and Western Bahr El Ghazal and Warrap States, South Sudan to investigate the distribution and population dynamics of ixodid ticks infesting indigenous zebu (Nilotic) cattle kept under traditional management system. A total of 7088 ticks were collected from 600 heads of cattle of three age groups; < 1 year, 1-3 years and > 3 years. The result revealed that the mature ticks represented 83.9% and immature tick stages 16.1%. Eight tick species belonged to three genera of the family Ixodidae, namely Amblyomma, Hyalomma and Rhipicephalus were identified. These included A. variegatum (58.4%), R. e. evertsi (13.9%), R. decoloratus (13.5%), Hyalomma rufipes (5.1%), R. annulatus (4.8%), H. truncatum (3.4%), R. sanguineus group (0.6%) and R. praetextus (0.3%). The mean ticks load was 17.8, 6.2 and 5.7% in Northern Bahr El Ghazal, Western Bahr El Ghazal and Warrap States, respectively. The study concluded that three tick genera and eight species were prevalent in Great Bahr El Ghazal Region.
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