16S rRNA metabarcoding sequencing of caecal laying hens content.
We performed 16S V3V4 region sequencing of the caecal content of 57 laying hens. These birds are divided in four groups from 2 lines divergently selected on their residual feed intake:  R+ (non efficient) and R- (efficient), fed 2 diets :CTR as a control diet ( a commercial diet based on wheat and soybean), and LE, a low-energy high fibre diet (based on corn and sunflower).