Oocysts per gram (OPG) of feces with experimentally induced coccidiosis in various treatment groups at day 8, 10, and 13 post infection. Means with different superscripts (a, b) are significantly different (p < 0.05). X-axis represents the numbers of different groups, and y-axis shows the numbers of oocyst in the chicken dropping. PROB6 = L. plantarum (1 × 106 CFU) supplemented group in feed; PROB7 = L. plantarum (1 × 107 CFU) supplemented group in feed; PROB8 = L. plantarum (1 × 108 CFU) supplemented group in feed; NC = infected, non-medicated treatment group; Cont = non-infected, non-medicated group.