Table 5. Differences in the relative abundance (%) of bacterial genera in intestinal digesta and feces of low and high residual feed intake (RFI) female broiler chickens raised at two geographical locations (L).
L1d | L2d | P-Value | ||||||
---|---|---|---|---|---|---|---|---|
Genusc | Low RFI | High RFI | Low RFI | High RFI | SEM | RFI | L | RFI × L |
Ileum | ||||||||
Turicibacter | 55.37aA | 24.78abB | 9.32b | 21.94abB | 12.281 | 0.472 | 0.058 | 0.091 |
Escherichia/Hafnia/Shigella | 15.91b | 44.98a | 35.49ab | 14.85b | 9.923 | 0.675 | 0.601 | 0.019 |
Lactobacillus | 12.05 | 4.68 | 35.29 | 39.11 | 11.225 | 0.876 | 0.016 | 0.623 |
Streptococcus | 0.69b | 8.05a | 0.46b | 0.30b | 1.548 | 0.029 | 0.016 | 0.023 |
Unclassified Clostridiaceae 2 | 0.16 | 0.31 | 0.80 | 1.08 | 0.364 | 0.551 | 0.064 | 0.864 |
Methylobacterium | 0.004 | 0.01 | 1.22 | 0.65 | 0.509 | 0.584 | 0.081 | 0.573 |
Bacillus | 0.006 | 0.02 | 0.46 | 0.16 | 0.173 | 0.412 | 0.096 | 0.371 |
Clostridium | 0 | 0 | 0.07 | 0.06 | 0.021 | 0.849 | 0.020 | 0.503 |
Corynebacterium | 0 | 0 | 0.02 | 0.07 | 0.016 | 0.059 | 0.025 | 0.169 |
Ceca | ||||||||
Unclassified Ruminococcaceae | 21.46 | 19.20 | 18.73 | 10.59 | 3.238 | 0.123 | 0.094 | 0.377 |
Anaerotruncus | 7.29 | 8.39 | 0.63 | 1.75 | 2.016 | 0.590 | 0.003 | 0.999 |
Unclassified RF39 | 1.60b | 1.28b | 2.25b | 7.94a | 0.911 | 0.007 | <0.001 | 0.003 |
Ruminococcus | 1.92 | 2.15 | 4.60 | 4.32 | 0.529 | 0.967 | <0.001 | 0.633 |
Unclassified Lachnospiraceae 2 | 0.63 | 0.56 | 2.36 | 1.29 | 0.545 | 0.311 | 0.034 | 0.370 |
Faecalibacterium | 0.21 | 0.18 | 0.84 | 1.82 | 0.339 | 0.180 | 0.003 | 0.152 |
Bacillus | 0.47 | 0.61 | 0.08 | 0.39 | 0.176 | 0.216 | 0.096 | 0.636 |
Streptococcus | 0.32 | 0.64 | 0 | 0 | 0.160 | 0.061 | 0.059 | 0.980 |
Unclassified Clostridiaceae 2 | 0.004 | 0.005 | 0.23 | 0.03 | 0.069 | 0.157 | 0.079 | 0.150 |
Clostridium | 0.03 | 0.04 | 0.004 | 0.009 | 0.011 | 0.441 | 0.020 | 0.744 |
Feces | ||||||||
Turicibacter | 7.99 | 3.39 | 17.16 | 32.19 | 7.653 | 0.503 | 0.020 | 0.212 |
Unclassified Clostridiales 1 | 18.18 | 12.73 | 4.11 | 0.89 | 5.337 | 0.426 | 0.022 | 0.837 |
Unclassified Ruminococcaceae | 9.65 | 9.28 | 1.88 | 0.23 | 4.229 | 0.814 | 0.058 | 0.882 |
Streptococcus | 4.12 | 5.88 | 0.45 | 1.29 | 1.853 | 0.491 | 0.035 | 0.807 |
Unclassified Clostridiales 2 | 0.15b | 0.67b | 6.57a | 0.77b | 1.817 | 0.159 | 0.085 | 0.094 |
Unclassified Clostridiaceae 2 | 0.09 | 0.17 | 2.79 | 1.30 | 0.514 | 0.185 | <0.001 | 0.139 |
Ruminococcus | 1.51 | 1.48 | 0.74 | 0.07 | 0.483 | 0.480 | 0.033 | 0.510 |
Acinetobacter | 0.02b | 1.74a | 0.15b | 0.12b | 0.511 | 0.111 | 0.158 | 0.099 |
Oscillospira | 0.82 | 0.76 | 0.29 | 0.04 | 0.272 | 0.566 | 0.028 | 0.731 |
Anaerotruncus | 0.44 | 0.76 | 0.05 | 0.01 | 0.304 | 0.653 | 0.074 | 0.557 |
Unclassified Lachnospiraceae 2 | 0.28 | 0.19 | 0.41 | 0.02 | 0.124 | 0.060 | 0.883 | 0.243 |
Unclassified Peptostreptococcaceae | 0.002 | 0.005 | 0.06 | 0.15 | 0.050 | 0.374 | 0.060 | 0.401 |
Pseudomonas | 0.005b | 0.004b | 0.02a | 0.003b | 0.003 | 0.037 | 0.091 | 0.042 |
Data are presented as least-square means and pooled standard error of the mean (SEM).
a,b Different superscript letters within a row indicate significant difference (P ≤ 0.05).
A,B Different superscript capital letters within a row indicate a tendency (P ≤ 0.10).
c The coverage of analyzed bacterial genera accounted for 99.02% of all sequences.
d L1, University of Veterinary Medicine Vienna (Vienna, Austria); L2. Agri-Food and Biosciences Institute (Hillsborough, Northern Ireland, UK).