Fig. 1

Effects of essential oils on intestinal lesion score of Clostridium perfringens challenged broiler chickens. Values are means of eight replicates per treatment and pooled standard error of the mean. Bars not sharing a common letter differ significantly (P ≤ 0.05). EO, essential oils; P (linear), polynomial contrasts were conducted to determine the linear response of lesion score to dietary EO dosages