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Table 2 Effect of replacing soybean meal with dried distillers grains with solubles on relative abundance of major ruminal bacterial phylum (each with a relative abundance ≥0.5% in at least one treatment) in different ruminal ecological niches of growing Hu lambs

From: Effects of dietary replacement of soybean meal with dried distillers grains with solubles on the microbiota occupying different ecological niches in the rumen of growing Hu lambs

Phylum Protein source (PS) Ruminal ecological niche (REN) P-value
SBM DDGS SEM Solid Liquid Epithelial SEM PS REN PS× REN
Bacteroidetes 47.80 41.92 2.779 52.15a 55.01a 27.41b 3.404 0.15 < 0.01 0.83
Firmicutes 40.65 45.21 3.034 41.75 41.41 45.63 3.716 0.30 0.68 0.78
Proteobacteria1 1.42 (6.05) 1.45 (7.04) 0.111 0.88b (0.93) 0.84b (0.64) 2.58a (18.06) 0.120 0.68 < 0.01 0.47
Spirochaetes 3.10 3.20 0.859 2.45b 0.76b 6.23a 0.941 0.90 < 0.01 0.59
Fibrobacteres 0.49 0.56 0.214 1.16a 0.12b 0.30b 0.254 0.82 < 0.01 0.94
Actinobacteria 0.59 0.85 0.115 0.65 0.85 0.66 0.141 0.11 0.55 0.84
  1. a-bMeans with different superscripts within a row of REN differ (P < 0.05)
  2. 1Data were cubic root transformed to ensure normality of residuals. Value in parenthesis is the mean of untransformed data in each treatment