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. 2024 Aug 10;13(8):753. doi: 10.3390/antibiotics13080753

Table 1.

Antibiotic resistance levels in the E. coli isolates.

Origin No.
of Tested Isolates
Number of Resistant Isolates (%)
AMP CTX CAZ CIP NA C CN S TE
Box bottoms
One-day old
68 68 (100) 28 (41.2) 7 (10.3) 0 0 0 39 (57.4) 45 (66.2) 67(98.5)
Feces
Pullets 90 72 (80) 0 0 0 9 (10) 0 2 (2.2) 7 (7.8) 63 (70)
Adults 80 59 (73.8) 3 (3.8) 2 (2.5) 2 (2.5) 9 (11.3) 3 (3.8) 0 36 (40) 45 (56.3)
% of resistant isolates 76.9 1.9 1.2 1.2 10.7 1.9 1.1 23.9 63.1
Boot swabs
Pullets 80 42 (52.5) 4 (5) 1 (1.3) 2 (2.5) 15 (18.8) 6 (7.5) 7 (8.8) 4 (5) 11 (13.8)
Adults 65 45 (69.2) 5 (7.7) 1 (1.5) 1 (1.5) 21(32.3) 6 (9.2) 0 13 (20) 34 (52.3)
% of resistant isolates 60.9 6.4 1.4 2.0 25.6 8.4 4.4 12.5 33.1
TOTAL % of resistant isolates 74.7 10.4 2.9 1.3 14.1 3.9 12.5 27.4 57.4

AMP—ampicillin; CTX—cefotaxime; CAZ—ceftazidime; CIP—ciprofloxacin; NA—nalidixic acid; C—chloramphenicol; CN—gentamicin; S—streptomycin; TE—tetracycline.