Figure 4. Bacterial composition of the different communities.

Relative read abundance of different bacterial genus within the different communities. Sequences that could not be classified into any known group were assigned as “unclassified bacteria”. The ETEC K88-challenged pigs and unchallenged pigs with same breed and age, and similar weight were not from the same litter and were assigned to the four treatments in a randomized complete block design. All pigs were housed in stainless steel pens (three piglets per pen) in the same unit.