Therapeutic effect of Ivermectin 1% and the use of motor oil in the control of Psoroptes Ovis in Pelibuey sheep

Abstract

Ovine psoroptic mange, caused by the mite Psoroptes ovis, is a highly contagious parasitic disease that affects the health, welfare, and productivity of sheep. The objective of this study was to evaluate the therapeutic efficacy of two alternative treatments for controlling this ectoparasite in Pelibuey sheep at the Awawas Natural Laboratory, located in San Pablo community, municipality of Siuna, North Caribbean Coast Autonomous Region (RACCN), Nicaragua. The study was conducted under an experimental and quantitative approach, using eight naturally infected sheep randomly distributed into two groups. Treatment 1 (T1) consisted of a single subcutaneous application of 1% ivermectin (1 ml/45 kg body weight), while Treatment 2 (T2) consisted of the topical application of recycled used motor oil in five sessions every 72 hours. Both treatments were accompanied by an immunological coadjuvant based on lactose and casein. The evaluated variables included scab detachment, tissue restoration, recovery of alopecic areas, reduction of blepharitis, increase in lesion size, and appearance of new lesions. Data were analyzed using analysis of variance (ANOVA) with Microsoft Excel software. The results showed no significant differences between the treatments, indicating comparable therapeutic efficacy. It is concluded that used motor oil may be considered an accessible and potentially viable alternative for controlling Psoroptes ovis, while also contributing to the reuse of industrial waste and the promotion of sustainable sanitary practices in sheep production systems.