Three stages in the life cycle of the tick Amblyomma hebraeum : male and female adults, a nymph and three larvae
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Abstract
Amblyomma hebraeum is one of the tick vectors of heartwater which is an acute disease of cattle, goats, sheep and some wild ruminants caused by the rickettsia, Ehrlichia ruminantium (formely Cowdria ruminantium). Heartwater is one of the mayor diseases of livestock in sub-saharan Africa. (Source: Allsopp, BA, Bezuidenhout, JD & Prozesky, L,'Heartwater', Infectious Diseases of Livestock'/ edited by JAW Coetzer & RC Tustin, Cape Town : Oxford University Press, 2004.)
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Colour photo. Original document size: (w)7 x (h)4.97 cm. Original scanned size: 370 kb JPEG, 600 dpi. Final web-ready size: 34.93 kb. Estimate download time: 13 sec. @ 28.8 kbps. Original TIFF file housed at the Dept. Veterinary Tropical Diseases, University of Pretoria. Metadata assigned by Prof. R.C. Tustin, Professor Emeritus: DVTD. His academic and professional experience includes: veterinarian for 54 years,
senior lecturer at UP for 7 years, head of Department at UP for 17 years and Veterinary Council for 3 years.
Keywords
Ticks, Heartwater, Amblyomma hebraeum