| Title | Description | Host | Host Type | Outcomes |
|---|---|---|---|---|
| In-feed Tylosin | Cattle were fed 11ppm tylosin phosphate in feed for the first 125 days of the 161-days feeding period (FIRST-78%). Samples were cultured on a combination of both non-selective and erythromycin selective media. | Cattle | Beef Heifers and Steers | 8 |
| In-feed Tylosin | Cattle were fed 11ppm tylosin phosphate in feed for the last 120 days of the 161-days feeding period (LAST-75%). Samples were cultured on a combination of both non-selective and erythromycin selective media. | Cattle | Beef Heifers and Steers | 8 |