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. 2013 Aug;19(8):1253–1259. doi: 10.3201/eid1908.120879

Table 3. Phylogenetic group distribution of extended spectrum β-lactamases– and AmpC-producing Escherichia coli in broiler chickens, Germany, 2010.

Phylogenetic group At farm, no. (%)
At slaughter, no. (%)
Total, no. (%)
Ceca
Carcass
Farm A Farm B Farm A Farm B Farm A Farm B
A 4 (44) 1 (25) 4 (22) 0 9 (30) 10 (40) 28 (32)
B1 2 (22) 2 (50) 5 (28) 0 8 (27) 1 (4) 18 (20)
B2 1 (11) 0 2 (11) 2 (67) 3 (10) 4 (16) 12 (14)
D 2 (22) 1 (25) 7 (39) 1 (33) 10 (33) 10 (40) 31 (35)