Populations of Select Cultured and Uncultured Bacteria in the Rumen of Sheep and the Effect of Diets and Ruminal Fractions

Table 3

Populations of bacteria (cultured and uncultured) and archaea.

	H-Ad	H-Lq	C-Ad	C-Lq	SEM	P value
Total bacteria	3.6×10^9	8.3×10^9	5.3×10^9	4.8×10^9	1.0×10^9	0.123
F. succinogenes	2.7×10^5 (a) (0.01%)	5.6×10^4 (a,b) (0.00%)	1.3×10^5 (a,b) (0.00%)	2.1×10^4 (b)(0.00%)	5.6×10^4 (0.001%)	0.025 (0.004)
R. albus	6.5×10^8 (17.94%)	1.5×10^7 (0.18%)	4.9×10^7 (0.94%)	3.1×10^7 (0.65%)	1.5×10^8 (0.43%)	0.477 (0.398)
R. flavefaciens	5.9×10^7 (1.63%)	4.3×10^7 (0.52%)	5.3×10^7 (1.01%)	5.0×10^7(1.05%)	3.2×10^6 (0.23%)	0.984 (0.307)
Butyrivibrio	8.7×10^7 (a) (2.42%)	8.7×10^7 (a) (1.05%)	6.3×10^6 (b) (0.12%)	2.5×10^6 (b) (0.05%)	2.4×10^7 (0.55%)	0.003 (0.001)
Prevotella	9.7×10^8 (26.97%)	2.3×10^9 (26.95%)	2.8×10^9 (53.65%)	2.9×10^9 (60.67%)	4.5×10^8 (8.83%)	0.459 (0.255)
R. amylophilus	8.6×10^3 (0.00%)	1.6×10^4 (0.00%)	8.2×10^4 (0.00%)	1.0×10^4(0.00%)	1.8×10^4 (0.00%)	0.131 (0.231)
S. ruminantium & M. multacida	2.8×10^6 (a) (0.08%)	4.7×10^7 (a,b) (0.56%)	6.1×10^7 (a,b) (1.15%)	1.5×10^7 (b) (0.30%)	1.4×10^7 (0.23%)	0.051 (0.060)
Ad-H1-75-1	5.0×10^6 (0.14%)	9.2×10^6 (0.11%)	2.3×10^6 (0.04%)	3.4×10^6 (0.07%)	1.5×10^6 (0.02%)	0.072 (0.334)
Ad-H2-90-2	1.2×10^7 (a) (0.33%)	4.6×10^7 (b) (0.56%)	1.0×10^7 (a) (0.19%)	5.4×10^6 (a) (0.11%)	9.4×10^6 (0.10%)	0.007 (0.196)
Ad-H1-14-1	4.5×10^7 (1.24%)	4.5×10^7 (0.54%)	1.3×10^7 (0.25%)	9.9×10^6 (0.21%)	9.6×10^6 (0.24%)	0.327 (0.095)
Lq-C2-16-3	2.5×10^7 (0.68%)	2.4×10^7 (0.28%)	4.9×10^7 (0.94%)	2.7×10^7 (0.57%)	6.1×10^6 (0.14%)	0.518 (0.320)
Lq-C2-58-2	8.9×10^6 (0.25%)	1.9×10^7 (0.23%)	2.9×10^7 (0.55%)	4.6×10^6 (0.10%)	5.5×10^6 (0.10%)	0.095 (0.094)
Methanogens	4.0×10^5	2.5×10^6	1.7×10^6	2.4×10^6	4.9×10^5	0.068

Note: Means within a row with different superscripts differ (𝑃<0.05). Values in parentheses are relative abundance (%) of total bacteria.