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Year : 2007
Tome : 158
Volume : 12
Pages : 627-632
Title : Seasonal abundance of ticks (Acari: Ixodidae) infesting sheep in the southern area of Benin
Authors : S. FAROUGOU, M. KPODEKON, H. ADAKAL, P. SAGBO1, C. BOKO
Summary : A study carried out in the meridional area of Benin from September 2005 to August 2006 on sheep’s parasitic ticks. The aim was to follow the seasonal dynamics of the various species met in sheep and to determine their abundance as well as the variations of the infestation level related to the sheep’s age and sex. Thus, ticks were taken away on 24 sheep coming from two breedings of the work area. At the end of the research, nine species of ticks belonging to the genera Amblyomma, Boophilus, Hyalomma and Rhipicephalus were identified. Amblyomma variegatum were dominant with a relative abundance of 89.70 % (p<0.05). The other species, met in smaller proportion, were: Boophilus annulatus (1.19 %), Boophilus decoloratus (1.22 %), Boophilus geigyi (3.86 %), Hyalomma marginatum rufipes (1.22 %), Hyalomma truncatum (0.08 %), Rhipicephalus sanguineus (0.76 %), Rhipicephalus senegalensis (0.32 %) and Rhipicephalus sulcatus (1.62 %). Concerning the variations of the infestations related to age and sex, the more than one year male sheep were more infested than the females and the young ones of less than one year (p<0.05). The ticks being much more abundant during the wintering, acarids’ control should be organized in that period against Amblyomma variegatum, species identified as dominant by the present study. This control is justified by mortality, the weight losses, the serious wounds caused by this tick species on the sheep as well as the diseases which can be transmitted to them.
Keywords : ticks, abundance, seasonal dynamics, sex, age, sheep, Benin
Correspondence : S. FAROUGOU
Adress : Laboratoire de Recherche en Biologie Appliquée, Ecole Polytechnique d’Abomey-Calavi, 01 BP 2009, Cotonou, BENIN - E. mail : farougou_s@yahoo.fr
Link : pdf

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