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Table 10 The relative abundances of microbiota at phyla level and Firmicutes/Bacteroidetes ratio in feces of sows during gestation (%)

From: Inclusion of purified dietary fiber during gestation improved the reproductive performance of sows

 ItemGestation StageDietsSEMP-value
Day 30Day 60Day 90Day 110CONDF1DF2DF3DF4DF5StageDietsS × DLinearQuadratic
Firmicutes80.15a73.98b67.09a64.57a71.1574.7171.7770.9669.2670.823.6< 0.010.290.0310.660.47
Bacteroidetes10.67a15.76b21.09a20.63a16.6615.6418.0018.0017.5616.351.9< 0.010.41< 0.010.800.43
Euryarchaeota1.06b2.02a2.09a1.86ab2.470.701.722.001.612.060.70.020.33< 0.010.560.57
Proteobacteria1.21b1.25b2.13b5.01a1.731.651.562.313.813.341.5< 0.010.170.0430.120.17
Spirochaetes2.06b2.34ab3.24a2.66ab3.392.332.572.382.32.470.50.020.080.0220.510.08
Tenericutes3.47a3.21a2.53b1.92b2.943.282.532.382.782.780.37< 0.010.15< 0.010.780.19
Cyanobacteria0.08b0.04b0.06b0.32a0.240.180.050.070.090.120.09< 0.010.130.500.580.03
Actinobacteria0.35b0.37b0.6ab0.87a0.420.470.490.580.770.550.22< 0.010.510.120.650.06
Acidobacteria0.02b0.01b0.06b0.3a0.02b0.02b0.02b0.06ab0.29a0.16ab0.17< 0.01< 0.01< 0.010.0170.07
Planctomycetes0.14b0.16b0.17b0.32a0.250.140.190.190.180.250.08< 0.010.31.< 0.010.300.33
Verrucomicrobia0.550.650.580.740.470.60.680.760.660.610.090.100.130.730.84< 0.01
Fibrobacteres0.03b0.05b0.1ab0.17a0.060.10.130.090.060.060.06< 0.010.870.0300.520.73
Firmicutes/
Bacteroidetes
8.29a5.35b3.39ab3.31a5.055.584.954.545.464.931.27< 0.010.28< 0.010.830.95
  1. Data are expressed as mean ± largest SEM. Sows were regarded as the experimental units, n = 6 for each treatment. a, b, c denote P < 0.05. CON, basal corn-soybean diet; DF1, wheat bran-rich diet; DF2, DF3, DF4 and DF5 were wheat bran diet supplemented with 1%, 2%, 3% and 4% of FIBER MIX (guar gum and cellulose, 1:4) at the expense of wheat bran. Linear contrasts (OPC) analysis was used to test the linear and quadratic effects of dietary fiber levels on microbial parameters of sows