Myiasis in sheep farms in Riyadh region, Saudi Arabia

ABSTRACT

During a survey for myiasis in Riyadh Region, 3712 sheep were examined. Seventy-three animals were infested with different dipterous larvae. Out of the 115 recovered larvae, 100 larvae were recovered from Chrysomya bezziana, 10 were C. Albiceps and 5 were Wohlfahrtia nuba. The prevalence rate of larval myiasis among young sheep was 60% and 40% among adults. The myiasis incidences were highest during the period from March to May [60%] and from September to November [31.5%], where temperature and RH were optimum. In the dry hot season [June-August] and cold season [December-February], infestation incidences were low [5% and 1.5%, respectively]. Temperature and RH are conductive in controlling myiasis in other regions of the Kingdom