Occurrence and Characterization of Salmonella Isolated from Large-Scale Breeder Farms in Shandong Province, China
Table 6
Susceptibility profiles of the in Salmonella isolated from breeder farms.
Antibiotic
No. of Salmonella isolates (n=63)
Resistant
Intermediate
Susceptible
Ampicillin (AMP)
62 (98.41%)
0 (0.00%)
1 (1.58%)
Cefotaxime (CTX)
1 (1.59%)
0 (0.00%)
62 (98.41%)
Ceftriaxone (CRO)
1 (1.59%)
1 (1.59%)
61 (96.82%)
Gentamicin (GEN)
0 (0.00%)
0 (0.00%)
63 (100.00%)
Streptomycin (STR)
63 (100.00%)
0 (0.00%)
0 (0.00%)
Erythromycin (EM)
60 (95.24%)
3 (4.76%)
0 (0.00%)
Tetracycline (TET)
23(36.51%)
34 (53.97%)
6 (9.52%)
Polymyxin (PB).
0 (0.00%)
0 (0.00%)
63 (100.00%)
Norfloxacin (NOR)
0 (0.00%)
1 (1.59%)
62 (98.41%)
Ciprofloxacin (CIP)
0 (0.00%)
63 (100.00%)
0 (0.00%)
Nalidixic acid (NAL)
63 (100.00%)
0 (0.00%)
0 (0.00%)
Sulfamethoxazole (SXT)
0 (0.00%)
0 (0.00%)
63 (100.00%)
Chloramphenicol (CHL)
0 (0.00%)
0 (0.00%)
63 (100.00%)
(a) Resistant, the antibiotic may be totally off limits under the circumstances; Intermediate, it implies clinical applicability in body sites where drugs are intermediate categories and also indicates “buffer zone”, which prevent small uncontrolled technical factors from causing major discrepancies, especially for drugs with narrow pharmacotoxicity margins; Susceptible, the infection due to the strain tested may be expected to respond to usual dosage of this antimicrobial agent.
