Evaluación del aceite esencial de paico (Chenopodium ambrosioides) como antiparasitario gastrointestinal en conejos (Oryctolagus cuniculus) bajo crianza traspatio

Abstract

The present investigation evaluated the antiparasitic efficacy of paico essential oil (C. ambrosioides) in rabbits (O. cuniculus) under backyard rearing, which required 36 rabbits of two months of age, with an average weight of 1352.97 g, distributed in groups of three, with a completely randomized design in three treatments. These were composed of paico essential oil, which was obtained by steam distillation, establishing T0: control (physiological serum), T1: paico essential oil 2.5%, and T2: paico essential oil 5%. All at a dose of 0.1 ml/kg applied only once. For the study, coproparasite examinations were performed: diagnosis, also at 7, 15 and 21 days post-treatment, by means of the flotation technique for identification and McMaster for parasite quantification, and data were collected on the productive performance of the animals. The results identified Passalurus ambiguus and Eimeria spp. The T2 treatment was effective against P. ambiguus while T1 helped in its control. However, the two protocols were ineffective for Eimeria spp. In terms of productive indexes, T1 and T2 had significant differences in relation to the control treatment, improving the indexes of feed conversion, weight gain and feed consumption, with T2 being numerically superior. There was no mortality in the experiment. In conclusion, paico essential oil can represent an alternative to the use of antiparasitic drugs, since parasitic pathologies can represent a loss in rabbit farms.