Investigation of comparative efficacy of eugenol and benzyl benzoate in therapy of sheep mange
2010
Jezdimirović Milanka | Aleksić Nevenka | Radojičić Biljana
The acaricide efficacy, tolerance and safety of eugenol (10 and 20 %) in the treatment of sarcoptic mange in sheep have been investigated. The results were compared with those corresponding for benzyl benzoate (25 %), which was applied to sheep in the same way. The treatment was applied on sheep three times in one-week intervals. Skin scrapings were sampled seven days after each treatment, as well as twenty-eight days following the third one. The changes on the skin were quantified and the mean recovery response (MRR) was calculated. The clinical efficacy was assessed according to the MRR and the number of mites in the samples. Following the first treatment 10%eugenol was not significantly less efficacious in comparison with the higher concentration. Having been applied twice 20% eugenol was significantly more efficacious when compared to the lower concentration, which remained the same seven and twenty-eight days after the third application. The efficacy of 10% eugenol in the therapy of mange was significantly higher in comparison with benzyl benzoate following one, two or three administrations. The efficacy of benzyl benzoate four weeks after the third treatment was still significantly lower in comparison with 10% eugenol. The efficacy of 20% eugenol was significantly higher in comparison with its lower concentration as well as that of benzyl benzoate, following the second, and seven and twenty-eight days after the third one. No signs of local or systemic intolerance were observed in sheep treated with either 10 or 20% eugenol, or 25 % benzyl benzoate. .
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