Liner in vitro growth inhibition curves of Theileria equi (A, D, G) and cytotoxicity assay on horse's peripheral blood mononuclear cells (PBMCs; B, E, H) and red blood cells (RBCs; C, F, I) after treatment with different concentrations of decamethonium bromide (DMB), dodecyl trimethyl ammonium bromide (DDTAB) and decyl trimethyl ammonium bromide (DTAB). Each value in the individual graph (A, D, G) represents percent parasitaemia (Mean ± SEM) observed at different time interval. ‘+’; ‘- ‘numeral on right hand side of the graph represented viability status of the T. equi parasite after 96 h of viability test.