| Title | Description | Host | Host Type | Outcomes |
|---|---|---|---|---|
| None | None | None | None | 6 |
| Organic production | USA Study comparing 10 organic and 10 conventional farms, and 503 organic and 200 conventional isolates | Swine | Not Specified | 12 |
| Organic production | USA Study comparing 2 organic and 2 conventional brands, and 33 organic and 43 conventional isolates | Chicken | Broilers | 1 |
| Organic production | USA Study comparing 35 organic and 60 conventional farms, and 498 organic and 883 conventional isolates | Swine | Not Specified | 5 |
| Organic production (2004) | USA Study comparing 3 organic and 2 conventional brands, and 188 organic and 141 conventional isolates | Chicken | Broilers | 1 |
| Organic production (2006) | USA Study comparing 3 organic and 2 conventional brands, and 188 organic and 141 conventional isolates | Chicken | Broilers | 1 |