Prevalence and incidence of bovine trypanosomosis in an agro-pastoral area of southwestern Burkina Faso
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..
| Main Authors: | , , , , , , , |
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| Format: | article biblioteca |
| Language: | eng |
| Subjects: | L73 - Maladies des animaux, Trypanosoma vivax, Trypanosoma congolense, immunologie, système agropastoral, zébu, http://aims.fao.org/aos/agrovoc/c_27408, http://aims.fao.org/aos/agrovoc/c_27401, http://aims.fao.org/aos/agrovoc/c_3808, http://aims.fao.org/aos/agrovoc/c_16112, http://aims.fao.org/aos/agrovoc/c_8507, http://aims.fao.org/aos/agrovoc/c_8081, |
| Online Access: | http://agritrop.cirad.fr/558526/ http://agritrop.cirad.fr/558526/1/document_558526.pdf |
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