Original Research

Some observations on ticks (Acari : Ixodidae) infesting sheep in River Nile Province of Northern Sudan

B.M. Ahmed, A.M. El Hussein, A.O. El Khider
Onderstepoort Journal of Veterinary Research | Vol 72, No 3 | a201 | DOI: https://doi.org/10.4102/ojvr.v72i3.201 | © 2005 B.M. Ahmed, A.M. El Hussein, A.O. El Khider | This work is licensed under CC Attribution 4.0
Submitted: 15 September 2005 | Published: 15 September 2005

About the author(s)

B.M. Ahmed,
A.M. El Hussein,
A.O. El Khider,

Full Text:

PDF (36KB)


Five species of ixodid ticks were found in a cross-sectional survey in which 200 sheep were examined for ticks in River Nile Province, Sudan. Hyalomma anatolicum anatolicum was the predominant species (73.6 %), whereas ticks belonging to the Rhipicephalus sanguineus group (14.7 %), Rhipicephalus evertsi evertsi (9.1 %), Rhipicephalus simus (2 %) and Hyalomma dromedarii (0.5 %) were also found. The mean tick load was 11.2 per animal. In a subsequent longitudinal survey ticks were collected on a monthly basis from eight sentinel sheep that were introduced into the area. It was found that H. a. anatolicum almost disappeared during the hot period between April and August, whereas it's highest numbers were present in winter between November and February. It is concluded that there is only one generation of H. a. anatolicum per year, which may explain the yearround appearance of clinical cases of malignant ovine theileriosis indicating endemic instability of this disease in River Nile Province.


No related keywords in the metadata.


Total abstract views: 4292
Total article views: 3883


Crossref Citations

1. Tick Fauna and Associated Rickettsia, Theileria, and Babesia spp. in Domestic Animals in Sudan (North Kordofan and Kassala States)
Andrea Springer, Yassir Adam Shuaib, Makarim Habib Isaa, Malaz Isam-Eldin Ezz-Eldin, Abdinasir Yusuf Osman, Idris Ahmed Yagoub, Mohamed Abdalsalam Abdalla, Amel Omer Bakiet, Saad El-Tiab Mohmed-Noor, Sabine Schaper, Ramona Rieß, Gerhard Dobler, Christina Strube, Deon K. Bakkes, Lidia Chitimia-Dobler
Microorganisms  vol: 8  issue: 12  first page: 1969  year: 2020  
doi: 10.3390/microorganisms8121969