In vitro ovicidal effect of a Senecio brasiliensis extract and its fractions on Haemonchus contortus

BMC Veterinary Research

Table 2 Mean (SE) of effective concentration to inhibit 50% (EC₅₀) of egg hatching or larval migration and to kill 50% of the cells

Extract	In vitro test^b	EC₅₀ (mg.mL⁻¹)
Dried plant	EHT	0.660 (0.506 to 0.859)
	LMIT	10.150 (8.022 to 12.840)
	CT	45.430 (37.580 to 54.920)
Alkaloids from dried plant	EHT	2.435 (2.143 to 2.765)
Non-polar fraction from dried plant	EHT	4.356 (0.434 to 43.760)
Fresh plant	EHT	2.596 (2.139 to 3.086)
Fresh plant	LMIT	1712 (44.020 to 66.560)
Alkaloids from fresh plant	EHT	^a
Non-polar fraction from fresh plant	EHT	^a

^aIt was not possible to estimate
^bEHT Egg Hatching Test, LMIT Larval Migration Inhibition Test, CT Cytotoxicity Test

ISSN: 1746-6148