Figure 2
From: Anticoccidial activities of Piper betle L essential oil on Eimeria tenella oocysts

Formalin and Piper bettle L essential oil (PBEO) effects on Eimeria tenella sporulation process. (A) Sporulated E. tenella oocysts (%) treated with 20% PBEO, 20% formalin, and 4% K2Cr2O7 control in a time-dependent manner. (B) Sporulated E. tenella oocysts (%) treated with different concentrations of PBEO, formalin, and 4% K2Cr2O7 control. (C) Dose-response curve of the sporulation assays by PBEO and formalin incubations at 72 h. * significant (P ≤ 0.05).