Influence of seasons on Oestrus ovis L. infection in sheep
Abstract
Seasonal dynamics of Oestrus ovis L. infection in sheep in conditions of Chechen Republic based on monthly dissections of frontal and paranasal sinuses in 394 sheep are studied. During the whole year the adult sheep stock was being infected with gadfly larvae. A significant difference in invasion of sheep with Oe. ovis in various months is determined. Two peaks of Oe. ovis infection are defined: June-July and September- October. The maximum infection level (76,0 %) has been reached in July by infection intensity 12,4±0,6 expl./head. The medium infection level (52,58 %) has been reached by infection intensity 7,0±0,37 expl./head. In the winter-spring season the sheep were infected to a lesser degree. The infection intensity was reducing from Mach to May (from 4,9±0,34 up to 2,8±0,18 expl./head) what was caused by development of Oe. ovis larvae in spring time and their pupation. It was found that during the pasture sea- son two generations of Oe. ovis are developed
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Review
For citations:
Mahauri A.A. Influence of seasons on Oestrus ovis L. infection in sheep. Russian Journal of Parasitology. 2014;(2):34-36. (In Russ.)
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