Anthelmintic activity of Cassia occidentalis L. methanolic leaf extract on Ascaridia galli and Heterakis gallinarum and its acute toxicity
Journal: International Journal of Basic & Clinical Pharmacology (Vol.3, No. 1)Publication Date: 2014-02-01
Authors : John N. Kateregga Maria Nabayunga Patrick Vudriko James G. Ndukui;
Page : 114-119
Keywords : Cassia occidentalis; Heterakis gallinarum; Ascaridia galli; Anthelmintic activity; Acute toxicity;
Abstract
Background: Cassia occidentalis is traditionally used to treat helminth infestations in poultry. We investigated the in-vitro anthelmintic activity of the methanolic leaf extract of this plant against Heterakis gallinarum and Ascaridia galli worms and its acute toxicity. Methods: Leaves of the plant were air dried, ground into powder and extracted with 70% methanol, filtered and dried at 50℃ into a dark green semi-solid mass. The worms were isolated from fresh intestines of local chicken and pheasants or turkeys freshly slaughtered in Kampala markets. They were placed in conical flasks containing Goodwin’s solution, kept in a water bath set at 39°C and exposed to 8, 12, 16, 20 and 24mg/ml extract concentrations. Percent worm mortality was determined for each concentration at 12h intervals. piperazine and ivermectin were used as positive controls. For acute toxicity evaluation, Swiss mice were divided into 5 groups (n=6) and administered per os with extract doses of 5,000, 10,000, 15,000, 20,000 and 25,000mg/Kg. The EC50 was determined by a plot of mortality probits against log extract concentration. Results There was a concentration-dependent relationship with worm mortality. The mean worm mortality for A. galli was significantly higher for the extract than for piperazine at 16 and 20mg/ml.
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Last modified: 2014-02-08 13:36:50