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Table 1 Administered drugs, cleaning and feeding protocols in the case and control farms

From: Effect of antimicrobials administered via liquid feed on the occurrence of sulphonamide and trimethoprim resistant Enterobacteriaceae: case-control study

Farms drug Additive for cleaninga Feed acidificationb Liquid feed component
Case farms
(n = 13)
drug1: 7
drug2: 3
drug3: 3
Acidb: 4
Sodac: 8
No:  1
Yes: 3
No: 10
Wheyd: 3
Water: 10
Control farms
(n = 14)
no drug Acidb: 4
Sodac: 4
Other: 2
(No cleaning: 4)
Yes: 5
No: 9
Wheyd: 5
Water: 9
  1. Drug 1: sulphonamide + trimethoprim; drug 2: chlortetracycline + sulphonamide + tylosin; drug 3: chlortetracycline
  2. aaddition to water for circuit pipeline cleaning or flushing after cleaning
  3. borganic acids
  4. ccaustic soda alone or with sodium hypochlorite
  5. dthe whey was acidified in two case and in two control farms