Prevalence and incidence of bovine trypanosomosis in an agro-pastoral area of southwestern Burkina Faso

Dayo Guiguigbaza-Kossigan, Bengaly Zakaria, Messad Samir, Bucheton Bruno, Sidibé Issa, Cene Bila, Cuny Gérard, Thevenon Sophie. 2010. Prevalence and incidence of bovine trypanosomosis in an agro-pastoral area of southwestern Burkina Faso. Research in Veterinary Science, 88 (2) : 470-477.

https://doi.org/10.1016/j.rvsc.2009.10.010

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Quartile : Q2, Sujet : VETERINARY SCIENCES

Résumé : 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..

Mots-clés Agrovoc : Trypanosoma vivax, Trypanosoma congolense, immunologie, système agropastoral, zébu

Mots-clés géographiques Agrovoc : Burkina Faso

Classification Agris : L73 - Maladies des animaux

Champ stratégique Cirad : Axe 4 (2005-2013) - Santé animale et maladies émergentes

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