One of the obstacles for ex situ conservation of wild and exotic animals are the diseases that affect them in captivity and, among them, the endoparasitoses, which are very frequent. The objective of this study is to report the occurrence of endoparasites in the fecal samples of animals from the Arruda Câmara Zoobotanical Park, at João Pessoa, Paraiba State, Brazil, as well as to identify significant statistical differences between the percentages of each parasite species found. To this end, 66 fecal samples were obtained from 50 species of animals including mammals, birds, and reptiles. Statistical differences between the percentages of each parasite species were obtained using the binomial test at 5% significance level. A total of 54.5% (36/66) of the fecal samples were positive (p=0.539), among which 80.5% (29/36) presented nematodes, followed by cestodes 19.4% (07/36), protozoans 13.9% (05/36), and mites 16.7% (06/36). This study reports for the first time the association of Balantidium sp. with Tapirus terrestris, Bertiella sp. with Alouatta caraya, Hymenolepis spp., and Aspiculuris spp. as spurious parasites in reptiles; and Entamoeba coli and Eimeria spp. with Iguana iguana in the northeastern part of the country. This study provides knowledge about some of the endoparasites that may occur in zoos in the northeastern region of the country, as well as in expanding the ecological data on wild and exotic animals.

Productivity in small ruminants can be compromised due to lice infestations. This pest infestation is controlled by the administration of insecticides, and their excessive use causes resistance. New control alternatives are being investiga-ted, especially the use of phytotherapeutics. Research using the oil from Carapa guianensis (andiroba) has shown insecticidal action on feline and goat lice specimens. The present study aimed to evaluate the efficacy of C. guianensis seed oil, in vitro, on Damalinia (Bovicola) ovis.Nine hundred specimens of D. (Bovicola) ovis were randomly assigned into groups and were subjected to different treatments: (G1) 1,000 to 15.6 mg/mL of C. guianensis oil; (G2) 3% Tween 80 (negative control); and (G3) amitraz 1.25 g/mL (positive control). Data presentation was expressed as mean efficacy ± standard deviation using the statistical program SPSS version 23.0 and statistical differences of the experimental groups were obtained by Kruskal-Wallis and Friedman. Probit Regression was performed to obtain CI50 and CI90, with a significance level of p < 0.05. The oil with a concentration of 1,000 mg/mL had an efficacy of 94% after 24 hours of exposure, differing statistically from the positive and negative control (p < 0.05). The IC50 and IC90 values were 439.21 mg/mL and 807.09 mg/mL, respectively. The action of the oil on the specimens was independent whether it was an adult female, male, or nymph. It is concluded that C. guianensis oil showed in vitro insecticidal effect against D. (Bovicola) ovis.

Esta obra está licenciada com uma Licença Creative Commons Atribuição 4.0 Internacional (CC BY 4.0).O conteúdo desta obra e seus dados em sua forma, correção e confiabilidade são de responsabilidade exclusiva dos autores. Permitido o download da obra e o compartilhamento desde que sejam atribuídos créditos aos autores, mas sem a possibilidade de alterá-la de nenhuma forma ou utilizá-la para fins comerciais.

Esta obra está licenciada com uma Licença Creative Commons Atribuição 4.0 Internacional (CC BY 4.0).O conteúdo desta obra e seus dados em sua forma, correção e confiabilidade são de responsabilidade exclusiva dos autores. Permitido o download da obra e o compartilhamento desde que sejam atribuídos créditos aos autores, mas sem a possibilidade de alterá-la de nenhuma forma ou utilizá-la para fins comerciais.

Esta obra está licenciada com uma Licença Creative Commons Atribuição 4.0 Internacional (CC BY 4.0). O conteúdo desta obra e seus dados em sua forma, correção e confiabilidade são de responsabilidade exclusiva dos autores. Permitido o download da obra e o compartilhamento desde que sejam atribuídos créditos aos autores, mas sem a possibilidade de alterá-la de nenhuma forma ou utilizá-la para fins comerciais.