%0 Journal Article %9 ACL : Articles dans des revues avec comité de lecture répertoriées par l'AERES %A Dayo, Guiguigbaza-Kossigan %A Bengaly, Z. %A Messad, S. %A Bucheton, Bruno %A Sidibé, I. %A Cene, B. %A Cuny, Gérard %A Thevenon, S. %T Prevalence and incidence of bovine trypanosomosis in an agro-pastoral area of southwestern Burkina Faso %D 2010 %L fdi:010049553 %G ENG %J Research in Veterinary Science %@ 0034-5288 %K Trypanosomosis ; Prevalence ; Incidence ; PCV ; Cattle ; Burkina Faso %M ISI:000278177300023 %N 3 %P 470-477 %R 10.1016/j.rvsc.2009.10.010 %U https://www.documentation.ird.fr/hor/fdi:010049553 %> https://www.documentation.ird.fr/intranet/publi/2010/06-2/010049553.pdf %V 88 %W Horizon (IRD) %X The present study was conducted to determine the prevalence and incidence of trypanosomosis and to investigate some factors influencing them in an agro-pastoral area of southwestern Burkina Faso. A total of 363 crossbred cattle (Baoule-zebu peul), which were bred under natural trypanosomosis challenge, were monitored monthly for parasitaemia, packed cell volume (PCV) and serological analyses over 2 years. The parasitological prevalence estimated at the beginning of the survey using the buffy coat technique (BCT) was 7.54%. As much as 66.7% of all trypanosome infections were due to Trypanosoma vivax, 23.8% due to Trypanosoma congolense and 9.5% due to T. vivax/T. congolense mixed infections. The monthly serological incidence varied from 0.29% to 19.29%. The season was the most important factor influencing the serological prevalence and incidence and the animal PCV. The dry hot season is associated with increasing seroprevalences and incidences and consequently a decreasing average of PCV. In addition, an important spatial heterogeneity was observed. %$ 052 ; 080