초록
The prevalence of warbles (Przhevalskiana silenus Brauer) and efficacy of ivomec against naturally occurring warble infestation in goats in Pothowar area of Pakistan was investigated. About 58.4% of the examined goats (total 301), were infedted by the warbles. The number of warbles per animal ranged from 1 to 23 (mean 5.1). Ivomec (ivermectin 1% w/v, Merck Sharp and Dhome, Netherlands) at the dose of 1 ml/50 kg of body weight proved excellent against this pest. The larvae of all the stages died inside the warbles after treatment and no skin perforations were observed in the treated animals. No side-effects of the drug were observed in the treated animals, except 2-3 minutes of bleating in a few animals at the time of injection.