Dayo Guiguigbaza-Kossigan auteur aut IRD Bengaly Z. auteur aut IRD Messad S. auteur aut IRD Bucheton Bruno auteur aut IRD Sidibé I. auteur aut IRD Cene B. auteur aut IRD Cuny Gérard auteur aut IRD Thevenon S. auteur aut IRD text journalArticle eng text/pdf born digital access 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. specialized Trypanosomosis Prevalence Incidence PCV Cattle Burkina Faso 052 080 88 3 470-477 2010 0034-5288 https://www.documentation.ird.fr/hor/fdi:010049553 10.1016/j.rvsc.2009.10.010 0034-5288 [F B010049553] https://www.documentation.ird.fr/hor/fdi:010049553 https://www.documentation.ird.fr/intranet/publi/2010/06-2/010049553.pdf Accès réservé (Intranet de l'IRD) IRD - Base Horizon / Pleins textes 2010-07-02 2017-08-23 fdi:010049553 fre