Table 3.
Different treatments on chickens in the phage STP4-a efficacy evaluation experiment.
| Groups | Number of chickens | Pretreatment | Challenge | Treatment |
|---|---|---|---|---|
| A | 10 | None | S. Typhimurium ATCC 14028 challenged1 | Untreated |
| B | 10 | None | Unchallenged | Untreated |
| C | 10 | None | S. Typhimurium ATCC 14028 challenged1 | STP4-a treated2 |
| D | 10 | None | Unchallenged | STP4-a treated2 |
| E | 10 | STP4-a pre-treated2 | S. Typhimurium ATCC 14028 challenged1 | Untreated |
| F | 10 | STP4-a pre-treated2 | Unchallenged | Untreated |
1
Ten chickens were orally challenged with S. Typhimurium (ATCC 14028) at the concentration of 1 × 108 CFU/bird.
2
Ten chickens were treated with bacteriophages as feed additives at a concentration of 1 × 109 pfu/g feed.