Campylobacter Colonization Phenotypes

Cecal colonization phenotypes for the chickens analyzed in the present study are derived from a published study using the progeny of a backcross [(Line 6₁ x Line N) x Line N] population (Psifidi et al., 2016). This experiment was performed in 2013 in 3 replicate trials. The chickens were inoculated by oral gavage at 3 wk of age with 10⁸ colony-forming units (CFU) of the 11168H strain of C. jejuni. Birds were sacrificed 5 d following inoculation and C. jejuni in the ceca were enumerated as described (Psifidi et al., 2016). The animal experiments were conducted in accordance with the Animals (Scientific Procedures) Act 1986, with the approval of the Ethical Review Committee of The Pirbright Institute (under project license PPL 30/2462) and the Animal Welfare and Ethical Review Body of The Roslin Institute (under PPL 60/4420).