Table 6. Differences in the relative abundance (%) of bacterial genera in intestinal digesta and feces of low and high residual feed intake (RFI) male 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 | ||||||||
Lactobacillus | 16.78b | 48.70ab | 57.13a | 34.36ab | 13.658 | 0.740 | 0.348 | 0.054 |
Turicibacter | 37.96a | 7.51b | 6.22b | 28.58ab | 9.499 | 0.673 | 0.578 | 0.009 |
Streptococcus | 3.88 | 5.04 | 0.08 | 0.71 | 1.835 | 0.631 | 0.034 | 0.886 |
Klebsiella | 1.88a | 0.19b | 0.05b | 0.57ab | 0.559 | 0.302 | 0.206 | 0.056 |
Methylobacterium | 0.006 | 0.003 | 0.40 | 0.39 | 0.225 | 0.976 | 0.091 | 0.985 |
Pseudomonas | 0 | 0 | 0.08 | 0.06 | 0.036 | 0.713 | 0.091 | 0.844 |
Ceca | ||||||||
Unclassified Clostridiales 1 | 45.62 | 59.38 | 60.66 | 63.48 | 3.878 | 0.040 | 0.019 | 0.168 |
Unclassified Ruminococcaceae | 23.01a | 15.99bA | 9.66bB | 10.59b | 2.327 | 0.199 | <0.001 | 0.097 |
Anaerotruncus | 8.72 | 11.32 | 1.36 | 1.26 | 2.010 | 0.538 | <0.001 | 0.506 |
Unclassified RF39 | 1.10 | 2.42 | 7.34 | 6.09 | 1.043 | 0.972 | <0.001 | 0.226 |
Ruminococcus | 2.83 | 1.47 | 4.28 | 3.57 | 0.460 | 0.031 | <0.001 | 0.479 |
Faecalibacterium | 0c | 0c | 2.29a | 1.06b | 0.313 | 0.120 | <0.001 | 0.026 |
Bacillus | 1.20 | 0.83 | 0.15 | 0.21 | 0.296 | 0.594 | 0.008 | 0.466 |
Streptococcus | 1.05a | 0.35b | 0b | 0b | 0.165 | 0.024 | <0.001 | 0.074 |
Unclassified Christensenellaceae | 0.26 | 0.20 | 0.64 | 0.48 | 0.101 | 0.280 | 0.002 | 0.653 |
Coprococcus | 0.24 | 0.16 | 0.17 | 0.12 | 0.032 | 0.050 | 0.131 | 0.626 |
Unclassified Clostridiales 2 | 0.24 | 0.17 | 0.11 | 0.12 | 0.031 | 0.358 | 0.006 | 0.190 |
Clostridium | 0.03 | 0.04 | 0.006 | 0.03 | 0.009 | 0.142 | 0.076 | 0.361 |
Feces | ||||||||
Lactobacillus | 10.09 | 16.10 | 7.39 | 28.56 | 7.918 | 0.096 | 0.542 | 0.346 |
Unclassified Ruminococcaceae | 8.53 | 5.45 | 2.55 | 1.88 | 2.563 | 0.471 | 0.072 | 0.642 |
Acinetobacter | 0.51b | 4.51a | 0.12b | 0.12b | 0.955 | 0.044 | 0.018 | 0.044 |
Unclassified RF39 | 0.45 | 0.10 | 3.60 | 0.51 | 0.873 | 0.058 | 0.051 | 0.130 |
Klebsiella | 2.10 | 2.18 | 0.04 | 0.05 | 1.089 | 0.967 | 0.063 | 0.973 |
Unclassified Clostridiales 2 | 0.19 | 0.09 | 1.30 | 1.91 | 0.509 | 0.618 | 0.007 | 0.488 |
Unclassified Clostridiaceae 2 | 0.20b | 0.05b | 0.16b | 1.11a | 0.272 | 0.154 | 0.070 | 0.050 |
Faecalibacterium | 0 | 0 | 0.74 | 0.61 | 0.300 | 0.967 | 0.046 | 0.704 |
Anaerotruncus | 0.57 | 0.53 | 0.12 | 0.08 | 0.193 | 0.844 | 0.025 | 0.993 |
Unclassified Lachnospiraceae 1 | 0.42 | 0.12 | 0.41 | 0.23 | 0.131 | 0.078 | 0.700 | 0.668 |
Blautia | 0.04 | 0.02 | 0.14 | 0.16 | 0.067 | 0.994 | 0.087 | 0.747 |
Dorea | 0.04 | 0.02 | 0.07 | 0.02 | 0.017 | 0.026 | 0.277 | 0.527 |
Unclassified Peptostreptococcaceae | 0 | 0 | 0.01 | 0.03 | 0.006 | 0.493 | 0.009 | 0.169 |
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).