Table 1 Proportions of Campylobacter jejuni BfR-CA-14430 isolates in the experimental group with reduced phage susceptibility (%).

From: Combined application of bacteriophages with a competitive exclusion culture and carvacrol with organic acids can reduce Campylobacter in primary broiler production

Phages*

Campylobacter isolates with reduced phage susceptibility (%) from

Cloacal swabs

Dissection

30 dph**

31 dph

32 dph

33 dph

34 dph

Cecum (34 dph)

Colon (34 dph)

NCTC 12673a

0.0

26.7

47.8

28.3

26.1

10.9

23.9

LmqsCPL1/1b

0.0

0.0

0.0

0.0

0.0

0.0

0.0

  1. *Phages were administered via drinking water 30, 31, and 32 dph (day post hatch).
  2. **Isolates were collected prior to the first phage application.
  3. aReduced plaque counts in overlays by a minimum of 2.4 log10 compared with the original Campylobcater target strain.
  4. bReduced plaque formation determined by spot testing by a minimum of 2.7 log10 compared with the original Campylobacter target strain.