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Table 4 Potency parameters of the three plants extracts and successive extracts and fractions of Vernonia amygdalina

From: In vitro effect of three tropical plants on adult Haemonchus placei, an haematophagous nematode from cattle

Assay parameters

VA

GK

LL

CE

AE

FA

FB

FC

FD

LC50 (mg/mL)

6.51

NA

NA

2.46

27.01

NA

2.38

5.21

NA

Standard error

0.04

–

–

0.06

0.07

–

0.06

0.02

–

95% CI

5.32–7.75

–

–

1.87–3.28

21.32–48.57

–

1.76–3.28

4.40–5.79

–

R2

0.83

–

–

0.93

0.81

–

0.97

0.97

–

  1. VA Vernonia amygdalina, GK Garcinia kola, LL Leucaena leucocephala, CE Chloroform extract of Vernonia amygdalina; AE Acetone extract Vernonia amygdalina, Chromatographic fractions of CE (FA, FB, FC, FD)