Table 2: Diameters (mean ± SD; mm) of clear zones formed by S. typhimurium NCCP10812 and S. enteritidis NCCP12243 to single concentrations (0, 2, and 4%) of NaCl and sequentially increased NaCl concentrations up to 4%.

Salmonella strainsAntibioticSingle concentration of NaCl (%)Sequential increase of NaCl (%)
0240→00→4

S. typhimurium NCCP10812Amoxycillin28.0 ± 0.827.5 ± 0.627.3 ± 0.5
Chloramphenicol31.8 ± 1.033.3 ± 1.534.0 ± 1.2
Ciprofloxacin47.0 ± 1.249.5 ± 3.448.0 ± 2.3
Gentamicin26.3 ± 1.026.8 ± 1.026.8 ± 1.0
Neomycin22.0 ± 0.822.0 ± 0.822.3 ± 0.5
Oxytetracycline26.8 ± 4.927.0 ± 4.727.0 ± 3.6
Streptomycin19.0 ± 0.019.3 ± 0.519.3 ± 1.0
Tigecycline25.5 ± 1.025.8 ± 1.026.3 ± 0.5

S. enteritidis NCCP12243Amoxycillin27.8 ± 0.528.0 ± 0.026.8 ± 2.2
Chloramphenicol10.8 ± 2.29.8 ± 0.511.0 ± 1.6
Ciprofloxacin44.5 ± 6.444.0 ± 4.639.3 ± 2.2
Gentamicin13.3 ± 0.513.5 ± 1.312.5 ± 0.6
Neomycin20.5 ± 0.621.0 ± 0.021.0 ± 0.8
Oxytetracycline8.0 ± 0.08.0 ± 0.08.0 ± 0.0
Streptomycin16.8 ± 0.515.0 ± 2.015.0 ± 0.8
Tigecycline25.0 ± 1.225.3 ± 1.026.8 ± 1.0

Means within the same row with different superscript letters are different ( ).