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Year : 1999
Tome : 150
Volume : 11
Pages : 899-904
Title : The Trypanosoma evansi infection of camel in Chad : epidemiological factors and effects on some blood components, protein and energy constituents
Authors : G. NDOUTAMIA, B.O. BRAHIM, A. BRAHIM, G. DJIMGANG, M. SABOUN et A.A. DOUTOUM
Summary : The latex agglutination antigen test (Suratex) in conjunction with parasitological examination of blood smears were used to study the epidemiolgy of camel trypanosomiasis in Chad. The results showed an overall infection rates of approximately 6.01 % and 24.68 % for the parasitological examination and serological technique, respectively. The survey indicated that the infection rate varied according to the geographical region and management practices. While the infection rates was 0 % for Zouar (Region I) and Faya-Tigui-Couba (Region II) using parasitological examination, the serological test indicated a prevalence of 6 % and 10 %, respectively. The infection rates for Kalait-Oumchalouba-Fada (Region III) were 12.08 % with the detection by parasitological technique and 38.34 % by Suratex. Using parasitological examination, Biltine (Region IV) and Kanem (Region V) revealed prevalences of 12.29 % and 8.23 % however, the serological test gave 40.98 % and 31.37 %, respectively. The infection rates were significantly higher (p < 0.001) among nomadic camel herds compared to that of sedentary ones. The prevalence was low (P < 0.001) among young camels, reached the maximum at 5 to 10 years old and tended to decrease from 10 years old. The survey indicated that the surra infection had a significant negative effect in the blood components and protein constituents of camels imponding their productivity
Keywords : epidemiology, Trypanosoma evansi , Tchad, hematology, protein, dromedary.
Correspondence : G. NDOUTAMIA
Adress : Laboratoire de Recherches Vétérinaires et Zootechniques de Farcha, B.P. 433, NDjamena, Tchad

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