| Title | Description | Host | Host Type | Outcomes |
|---|---|---|---|---|
| Zinc Use | Feed was supplemented with zinc at 50 mg/kg (referent), and 2500 mg/kg (exposed). The zinc level was adjusted by supplementation of corn starch with analytical grade zinc oxide. E. coli was isolated from ileum and colon digesta post-euthanasia. | Swine | Weaners | 4 |
| Zinc Use | Feed was supplemented with zinc at 50 mg/kg (referent), and 2500 mg/kg (exposed). The zinc level was adjusted by supplementing corn starch with analytical grade zinc oxide. E. coli isolated from ileum/colon digesta. Recorded as sulfonamide/trimethoprim. | Swine | Weaners | 1 |