030 Ovicidal effect of the fruit and leaf of Caesalpinia coriaria against Haemonchus contortus and Haemonchus placei

Abstract

The effect of hydroalcoholic extracts of fruits and leaves from Caesalpinia coriaria on the egg hatching inhibition of Haemonchus contortus and Haemonchus placei was evaluated. The tested concentrations were 25.0, 12.5, 6.2, 3.1, and 1.5 mg/mL; likewise, a 4% methanol solution and albendazole were used as negative and positive controls, respectively. The results were analyzed under a 2 × 2 × 6 factorial arrangement of treatments under a completely randomized design, and for the mean comparison, Tukey’s test was used. The mean (LC₅₀) and maximum (LC₉₀) lethal concentrations were estimated with Probit analysis of SAS. The hydroalcoholic leaf extract as well as the fruit extract had ovicidal activity (Table 030; P < 0.05), inhibiting hatching in around 100% with the concentration of 25.0 mg/mL. The fruit extract had better egg hatching inhibition (P < 0.001) in H. contortus and H. placei than the leaf extract. The LC₅₀ for the fruit extract were 1.63 and 3.91 mg/mL and for the leaf were 3.98 and 11.68 mg/mL for H. contortus and H. placei, respectively. The main compounds contained in both extracts were tannins, flavonoids, gallic acid, and ethyl gallate. It is concluded that the hydroalcoholic extracts from mature fruits and leaves of C. coriaria have the ability of inhibit the egg hatching of H. contortus and H. placei. Copyright © 2017. American Society of Animal Science .