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Table 1 Copy numbers, and relative abundance of total bacteria in each fraction *

From: Quantitative comparisons of select cultured and uncultured microbial populations in the rumen of cattle fed different diets

Taxon Lq-H (Jersey) Lq-C (Holstein) Ad-H (Jersey) Ad-C (Holstein) P value
Total bacteria 1.71×108 ± 1.00×108 5.19×108 ± 5.65×107 1.86×108 ± 2.85×107 4.98×108 ± 5.00×107 0.031
Total archaea 2.62×104 ± 1.87×104 7.22×102 ± 7.60×101 3.16×104 ± 3.75×103 3.43×103 ± 2.07×103 0.183
F. succinogenes 3.32×106 ± 1.32×106 3.56×106 ± 4.50×105 5.76×106 ± 1.15×106 5.20×106 ± 1.75×106 0.503
(2.27 ± 0.56%)ab (0.68 ± 0.01%)b (3.09 ± 0.14%)a (1.09% ± 0.46)ab (0.031)
R. albus 7.59×104 ± 4.41×104(b) 5.31×105 ± 1.90×104(a) 3.60×105 ± 1.44×105(ab) 5.87×105 ± 4.15×104(a) 0.033
(0.05 ± 0.00%) (0.10 ± 0.01%) (0.19 ± 0.05%) (0.12 ± 0.00%) (0.067)
R. flavefaciens 2.56×106 ± 8.24×105(c) 8.27×106 ± 4.31×105(b) 8.58×106 ± 1.88×105(b) 2.07×107 ± 4.10×105(a) <0.001
(1.86 ± 0.61%)b (1.60 ± 0.09%)a (4.71 ± 0.62%)a (4.20 ± 0.34%)a (0.020)
Butyrivibrio 1.91×106 ± 8.65×105 3.46×106 ± 7.65×105 3.56×106 ± 6.95×105 3.43×106 ± 1.20×105 0.374
(1.25 ± 0.23%) (0.66 ± 0.08%) (2.02 ± 0.68%) (0.70 ± 0.09%) (0.156)
P. ruminicola 1.94×105 ± 1.58×105(b) 6.31×106 ± 1.35×106(a) 9.40×105 ± 1.91×105(b) 3.88×106 ± 6.20×105(ab) 0.014
(0.09 ± 0.04%)b (1.26 ± 0.40%)a (0.50 ± 0.03%)ab (0.78 ± 0.05%)ab (0.059)
Prevotella 4.40×107 ± 2.96×107(b) 1.88×108 ± 2.60×107(a) 5.95×107 ± 5.45×106(b) 1.20×108 ± 1.00×106(ab) 0.022
(23.83 ± 3.35%) (37.19 ± 9.06%) (33.25 ± 8.01%) (24.43 ± 2.63%) (0.458)
S. ruminantium 1.33×105 ± 1.08×105 8.05×105 ± 2.57×105 1.82×105 ± 2.15×104 6.51×105 ± 1.68×105 0.098
(0.06 ± 0.03%) (0.16 ± 0.07%) (0.10 ± 0.00%) (0.13 ± 0.02%) (0.394)
R. amylophilus 8.18×104 ± 3.61×104 8.43×105 ± 3.48×105 1.04×105 ± 5.86×104 3.02×104 ± 2.46×104 0.084
  (0.05 ± 0.01%) (0.17 ± 0.09%) (0.05 ± 0.02%) (0.01 ± 0.00%) (0.198)
Ad-C1-74-3 7.32×104 ± 4.27×104(b) 1.00×105 ± 2.05×103(b) 1.86×105 ± 2.95×104(ab) 3.16×105 ± 4.75×104(a) 0.027
(0.04 ± 0.00%) (0.02 ± 0.00%) (0.10 ± 0.03%) (0.06 ± 0.02%) (0.104)
Lq-C2-16-3 4.55×105 ± 6.05×104(b) 9.79×105 ± 4.90×104(b) 1.42×106 ± 6.50×104(ab) 3.24×106 ± 7.75×105(a) 0.003
(0.38 ± 0.18%) (0.19 ± 0.03%) (0.79 ± 0.16%) (0.67 ± 0.22%) (0.180)
Lq-C2-58-2 1.22×106 ± 7.89×105(b) 3.08×106 ± 8.40×105(b) 4.35×106 ± 9.50×104 (b) 9.43×106 ± 1.15×106(a) 0.008
(0.68 ± 0.06%)b (0.62 ± 0.23%)b (2.40 ± 0.42%)a (1.89 ± 0.04%)ab (0.015)
Ad-H1-14-1 1.45×106 ± 2.15×105 (b) 2.62×106 ± 2.25×105(b) 2.53×106 ± 2.95×105 (b) 6.07×106 ± 5.40×105 (a) 0.003
(1.18 ± 0.57%) (0.51 ± 0.01%) (1.37 ± 0.05%) (1.22 ± 0.01%) (0.288)
Ad-H1-75-1 2.22×105 ± 4.30×104 (b) 1.11×104 ± 7.00×102 (b) 8.59×105 ± 2.65×104 (a) 1.61×105 ± 7.36×104 (b) 0.001
(0.18 ± 0.08%)ab (0.00 ± 0.00%)b (0.48 ± 0.09%)a (0.03 ± 0.02%)b (0.015)
Ad-H2-90-2 9.26×105 ± 6.73×105 2.03×106 ± 2.50×105 1.77×106 ± 2.60×105 3.72×106 ± 6.50×105 0.067
  (0.48 ± 0.11%) (0.40 ± 0.09%) (1.00 ± 0.29%) (0.77 ± 0.21%) (0.256)
  1. *Values represent means ± standard errors.
  2. Note: Values in parentheses indicate relative abundance of total bacteria.