Results
The A. sisalana extract inhibited the egg hatching of the sheep
gastrointestinal nematodes. The average inhibition percentage in
the EHT increased significantly (p < 0.05) with the extract’s concentration,
varying from 1.93% to 100% in the wells. There was
no statistical difference between the treatments with 30 and
15 mg/mL and that with albendazole. The mean egg hatching inhibition
in the negative control was 4.2% (Table 1). The LC50 and LC95
in the EHT were 6.90 (6.36–7.51) and 24.79 (21.17–30.02) mg/mL,
respectively (Fig. 2).
The efficacy of the A. sisalana extract in the LDT ranged from0% to 100%.
The highest concentrations (0.06–1 mg/mL) differed statistically fromthe lowest ones (0.007–0.03 mg/mL).
No L3 were observed at concentrations of 0.12–1 mg/mL, demonstrating larvicidal action.
The average inhibition percentage in the LDT in the negative control was 13.2% (Table 2). The LC50 and LC95 in the LDT were 0.041 (0.034–0.049) and 0.067 (0.055–0.099) mg/mL, respectively (Fig. 3).
The feeding inhibition after 2 h of exposure of the L1 to the treatments ranged from 0% to 100%. At the four highest concentra