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Year : 2008
Tome : 159
Volume : 8-9
Pages : 455-461
Title : Part II: Prevalences of major skin diseases in cattle, sheep and goats at Adama Veterinary Clinic, Oromia regional state, Ethiopia
Authors : H. T. YACOB, B. NESANET, A. DINKA
Summary : This study was conducted during the period between December 2006 and May 2007, to identify the major skin diseases of ruminants from the Oromia region. A total of 584 cattle, 377 sheep and 295 goats of both sexes (811 females and 445 males) divided in young and adult animals (266 and 990 respectively) were examined. The overall prevalences for skin diseases were 15.41% (90 cases) in cattle and 25% (168 cases) in small ruminants, males or young animals being significantly more susceptible in the 3 species studied. In cattle, skin diseases were mainly due to ectoparasites (77/90 cases) which infested males and young animals in a significantly privileged way whereas ectoparasitism was responsible for only 44.6% cases in affected small ruminants and was notably low in goats (prevalence: 7.78%). The main ectoparasites identified in the Oromia area were ticks (Ambylomma, Boophilus and Hyalomma) in cattle and in sheep (respective prevalences: 6.34% and 4.77%), lice (Damalina and Linognathus) (respective prevalences: 3.94% in cattle and 6.40% in small ruminants) and Demodex at a lesser extend (1.88% in cattle and 1.19% in small ruminants). Pediculosis preferentially affected young ruminants (p < 0.05) and bovine crossbreeds (p < 0.001). Other skin diseases were scarcely observed in cattle (prevalence: 2.20%) contrary to the small ruminants (93/168 cases) in which the infection risk was increased for males and young animals (particularly young sheep). While lumpy skin disease was rare in cattle, the pox virus prevalences were relatively high in sheep (10.34%) and in goats (12.88%). Contagious ecthyma was registered in 1.79% small ruminants and the dermatophilosis prevalence remained low, ranged from 0.53% in goats to 1.20% in cattle. This study demonstrates that skin diseases are among the most important health constraints of ruminants in the Oromia region leading to important economic losses and they urgently require some control interventions.
Keywords : Cattle, sheep, goats, skin diseases, prevalence, oromia, Ethiopia
Correspondence : H. T. YACOB
Adress : Faculty of Veterinary Medicine, Addis Ababa University, P.O.Box 34, Debre Zeit, ETHIOPIA. E-mail : yamilaya@yahoo.com
Link : pdf

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