Review on Heart Water Disease in Ruminants at Suro District
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Heart water is a tick borne infectious disease of ruminants affecting cattle, sheep, goats and antelope which is caused by the rickettsia organism cowdria ruminatium. The objective of this seminar is to review on heart water disease (cowdrosis) with the successful control of the disease. Heart water occurs only where vector ticks of the genus amblyomma are active and was limited in its occurrence to Africa, Madagascar and three countries in the West Indies. It is one of the main causes of death in imported breeds of cattle, sheep and goats in Africa south of the Sahara desert. A tentative diagnosis of heart water is based on the presence of amblomma vectors, of clinical nervous signs, and of transudates in the pericardium and thorax at postmortem examination, which must then be confirmed by demonstration of the causative organism or its DNA. Methods of control and prevention of cawdriosis is through chemotherapy, vaccination and vector control. Therefore calves of less than 4 weeks and lambs in the first week of life should be immunized.
Achenef M, Basaznew B, Mersha C, Wassie M and Gizat A, (2013).Veterinary Pharmacy and Biomedical Sciences Department.
Allsopp, B.A., Bezuidenhout, J.D., Prozesky, L. (2005). Heartwater, in: Infectious diseases of livestock, edited by Coetzer, J.A.W. & Tustin, and R.C. Cape Town: Oxford University Press Southern Africa.
Bath G, van A, Pettey K. Control measures for some important and unusual goat diseases in southern Africa. Small Rumin Res. 2005; 60: 127-140.
Blood, D.C. and Radostitis (1994): Veterinary Medicine; A textbook of the diseae of cattle, sheep, pigs, goats and horses 8 ed., ELBS. BaillierTindasll.pp 1155-1156.
Brown and Skowronck, A. J. (1990).Histologic and immunochemical study of Pathogenesis of HW (Cowdriaruminantium infection) in goats and mice. American Journal of Veterinary Research, 51 (9): 1476-1480:17 Ref.
Brown.C and Torres .A. (2008). Foreign Animal Diseases, Seventh Edition.Committee of Foreign and Emerging Diseases of the US Animal Health Association.
Chamboko, T., Mukhebi, A.W., Callaghan, C.J.O., Peter, Kruska, R.L., Medley, G.F., Mahan, S.M., Perry, B.D. 1999. The control of heartwater on large-scale commercial and smallholder farms in Zimbabwe. Preventive Veterinary Medicine, 39: 191-210.
Coetzer .J and Tustin.R.(2004). - Infectious Diseases of Livestock, 2nd Edition.
De Castro J. Sustainable tick and tick-borne disease control in livestock improvement in developing countries (1997).
Mahan S, Smit G, Kumbula D, Burridge, M, Barbet A, (2001). Reduction in mortality from heart water in cattle, sheep and goats exposed to field challenge using an inactivated vaccine. Veterinary Parasitology 97: 295-308.
Mahan, S.M., Smith, G.E., Kumbula, D., Burridge, M.J., Barbet, A.F. 2001. Reduction in mortality from heart water in cattle, sheep and goats exposed to field challenge using an inactivated vaccine. Veterinary Parasitology97: 295-308.
Mekonnen S, Hussein I, Bedane B (2001). The distribution of ixodid ticks in central Ethiopia. Under.J. Vet. Res. 68 (4):243-251.
Shkap, V., De Vos, A.J., Zweygarth, E., Jongejan, F. 2007. Attenuated vaccines for tropical theileriosis, babesiosis and heartwater: the continuing necessity. Trends in Parasitology23: 420426.
World Organisation for Animal Health, (2008). - Terrestrial Animal Health Code. OIE, Paris.
World Organisation for Animal Health, (2009). - Terrestrial Animal Health Code. OIE, Paris.
World Organization for Animal Health (OIE, 2014). – Chapter 8.8. Heartwater.In Terrestrial Animal Health.
World Organization for Animal Health, (OIE, (2015).Manual of diagnostic tests and vaccines for terrestrial animals.
Yonow, T., Brewster, C.C., Allen, J.C., Meltzer, M.I. 1998. Models for heartwater epidemiology: practical implications and suggestions for future research. Onderstepoort Journal of Veterinary Research 65: 263-273
