ISA Brown Warren medium heavy layer hens were divergently selected for 25 generations on their primary immune response. Two selection chicken lines were established: chickens with a high natural antibody response (H) and chicken with a low natural antibody response (L). Besides a control line of randomly bred chickens was included (C) (Parmentier et al.
de Greeff, A. (Creator) (16 Sep 2009). Transcription profiling of jejunum from chickens with either a high or low natural antibody response which were fed an organic or conventially produced diet. Wageningen UR.