Cecal microbiota of lines 61 and N that received homologous or heterologous microbiota transplants are not significantly different. No significant differences were detected in the average bacterial abundance at the phylum (A) or family (B) level in the cecal microbiota of inbred lines 61 and N given a homologous or heterologous microbiota transplant. Five birds were sampled per group for the donor birds, 2 to 4 birds per group at days 1, 7, and 21, and 10 birds per group at day 30. For groups noted on the x axis, the first letter denotes the recipient line and the second letter denotes the donor line.