Table 1.

Antagonistic activity of potential lactic acid bacteria (LAB) probiotic strains from broiler GIT against pathogenic bacteria by agar well diffusion technique

Zone of inhibition (mm)
Strain	Escherichia coli	Escherichia coli O157: H7	Enterococcus faecalis	Salmonella Typhimurium	Salmonella Enteritidis	Listeria monocytogenes
I1	19.5 ± 0.71	17 ± 0	16 ± 1.41	16 ± 0	15.5 ± 0.71	17 ± 1.41
I2	19 ± 1.41	17.5 ± 0.71	16.5 ± 0.71	15.5 ± 0.71	14.5 ± 0.71	16 ± 1.41
I4	19 ± 0	14.5 ± 0.71	16.5 ± 0.71	14.5 ± 0.71	15 ± 0	17 ± 0
I5	20 ± 0	16 ± 0	17 ± 1.41	17 ± 1.41	16 ± 0	19 ± 1.41
I6	18 ± 0	17 ± 0	16 ± 1.41	16.5 ± 2.12	17 ± 0	17.5 ± 4.95
I8	18.5 ± 0.71	15.5 ± 2.12	16 ± 1.41	17 ± 1.41	16 ± 0	20 ± 4.24
I9	17 ± 0	14.5 ± 0.71	17 ± 0	15.5 ± 0.71	14.5 ± 0.71	15.5 ± 3.54
I12	18.5 ± 0.71	15 ± 2.83	18.5 ± 0.71	16.5 ± 0.71	15.5 ± 0.71	17 ± 4.24
I13	19 ± 0	15.5 ± 0.71	17 ± 0	17 ± 0	15 ± 0	17.5 ± 0.71
c1	18.5 ± 2.12	14.5 ± 0.71	15.5 ± 0.71	15 ± 0	15.5 ± 0.71	14 ± 0
c2	18.5 ± 0.71	15 ± 1.41	15.5 ± 0.71	16 ± 1.41	15.5 ± 0.71	14.5 ± 0.71
c3	19.5 ± 0.71	14.5 ± 0.71	15 ± 0	14.5 ± 0.71	15.5 ± 0.71	14 ± 0
c5	18.5 ± 2.12	17 ± 1.41	17 ± 1.41	15 ± 0	14.5 ± 2.12	15.5 ± 2.12
c9	20 ± 0	14 ± 1.41	16 ± 1.41	17 ± 0	14.5 ± 0.71	15 ± 1.41
c12	17.5 ± 0.71	14 ± 1.4	16.5 ± 0.71	15.5 ± 0.71	15 ± 0	14 ± 0
c13	17 ± 1.41	11.5 ± 2.12	15.5 ± 2.12	16.5 ± 0.71	12.5 ± 0.71	14 ± 1.41
c14	17.5 ± 0.71	14 ± 1.41	17 ± 1.41	14.5 ± 0.71	14 ± 1.41	15 ± 0
c19	20 ± 0	13.5 ± 0.71	18 ± 1.41	13.5 ± 0.71	14.5 ± 0.71	15 ± 1.41

Data are mean values ± SD of independent experiments (n = 3)