Table 1.

Number of E. coli isolates per matrix and hatchery.

Sampled Matrices	Hatcheries (H)										Total
	H1	H2	H3	H4	H5	H6	H7	H8	H9	H10
Day-old hatchling meconium	4/45 (8.9%)	4/45 (8.9%)	4/45 (8.9%)	5/45 (11.1%)	3/45 (6.7%)	5/45 (11.1%)	5/45 (11.1%)	0/45 (0.0%)	0/45 (0.0%)	0/45 (0.0%)	30/450 (6.7%)
Air tunnels	0/3 (0.0%)	0/3 (0.0%)	0/3 (0.0%)	1/3 (33.3%)	0/3 (0.0%)	1/3 (33.3%)	1/3 (33.3%)	0/3 (0.0%)	0/3 (0.0%)	0/3 (0.0%)	3/30 (10.0%)
Incubators	0/3 (0.0%)	0/3 (0.0%)	3/3 (100%)	1/3 (33.3%)	1/3 (33.3%)	1/3 (33.3%)	1/3 (33.3%)	0/3 (0.0%)	0/3 (0.0%)	0/3 (0.0%)	7/30 (23.3%)
Hatchery machines	0/3 (0.0%)	0/3 (0.0%)	2/3 (66.6%)	1/3 (33.3%)	0/3 (0.0%)	1/3 (33.3%)	1/3 (33.3%)	0/3 (0.0%)	0/3 (0.0%)	0/3 (0.0%)	5/30 (16.7%)
Infertile eggs	2/3 (66.6%)	2/3 (66.6%)	0/3 (0.0%)	1/3 (33.3%)	0/3 (0.0%)	1/3 (33.3%)	1/3 (33.3%)	0/3 (0.0%)	0/3 (0.0%)	0/3 (0.0%)	7/30 (23.3%)
Water	0/3 (0.0%)	2/3 (66.6%)	1/3 (33.3%)	0/3 (0.0%)	1/3 (33.3%)	0/3 (0.0%)	0/3 (0.0%)	0/3 (0.0%)	0/3 (0.0%)	0/3 (0.0%)	4/30 (13.3%)
Workers’ hands	1/3 (33.3%)	1/3 (33.3%)	0/3 (0.0%)	0/3 (0.0%)	1/3 (33.3%)	0/3 (0.0%)	0/3 (0.0%)	0/3 (0.0%)	0/3 (0.0%)	0/3 (0.0%)	3/30 (10.0%)
Egg refrigerators	0/3 (0.0%)	1/3 (33.3%)	0/3 (0.0%)	1/3 (33.3%)	0/3 (0.0%)	1/3 (33.3%)	0/3 (0.0%)	0/3 (0.0%)	0/3 (0.0%)	0/3 (0.0%)	3/30 (10.0%)
Floors	0/3 (0.0%)	1/3 (33.3%)	0/3 (0.0%)	1/3 (33.3%)	0/3 (0.0%)	1/3 (33.3%)	0/3 (0.0%)	0/3 (0.0%)	0/3 (0.0%)	0/3 (0.0%)	3/30 (10.0%)
Total	7/69 (10.1%)	11/69 (15.9%)	10/69 (14.5%)	11/69 (15.9%)	6/69 (8.7%)	11/69 (15.9%)	9/69 (13.0%)	0/69 (0.0%)	0/69 (0.0%)	0/69 (0.0%)

H1–H10 = Hatcheries 1 to 10; Hatchery samples were obtained from two visits. A total of 45 hatchling samples and 3 samples per environmental site were obtained per a hatchery.

Number of E. coli isolates/number of samples (percentage of isolates).