TABLE 2.

Host range activity of the 22 phages against 23 prevalent poultry isolates examined in this study.

Confluent bacterial cultures of representative Salmonella chicken strains were prepared in 4 mL of 0.7% LB agar medium. Approximately, 10 μL of 10⁸ PFU/mL of phage lysate was applied to the lawn and zones of lysis were observed after incubation at 37°C aerobically for 18–24 h. Key: red = no infection, mustard = cloudy lysis, green = lysis with some resistant colonies observed on zones of clearance, and blue = complete lysis with no resistance.