FIG. 3.

Gas chromatography fatty acid profiles of the 94 L. reuteri strains from the four farms F1, F2, F3, and F4 and two ages, 1- and 5-week-old chickens, marked as 1 and 5, respectively. Fatty acid data, with ED referring to the same species when the ED was <25 and the same strain when the ED was <10, are shown. L. reuteri isolates inhibited by nisin concentrations of ≤50 IU ml⁻¹ are in lightface type, and those between 50 to 500 IU ml⁻¹ are in italic type, whereas those resistant to >500 IU ml⁻¹ are in boldface type.