Betaine Modulates Rumen Archaeal Community and Functioning during Heat and Osmotic Stress Conditions In Vitro

Table 8

Pearson’s correlation coefficient analysis for archaea genera in solid phase compared to fermentation parameters and gas production in vitro.

	Methanimicrococcus	Methanobacterium	Methanobrevibacter	Methanosaeta	Methanosarcina	Methanosphaera	Vadin CA11
Total fermentation gas	0.27	0.19	-0.28	-0.21	0.03	0.17	-0.08
CH4	0.22	0.26	-0.29	-0.18	-0.01	0.17	-0.08
CO2	0.06	-0.12	-0.02	0.03	0.00	0.07	-0.14
CH4/g OM	0.12	0.30	-0.26	-0.19	0.00	0.19	-0.03
CH4/g DM	0.11	0.30	-0.26	-0.19	0.00	0.19	-0.03
MCR (%GE intake)	0.22	0.26	-0.29	-0.18	-0.01	0.17	-0.08
[2H] produced acetate	-0.05	-0.05	-0.09	0.16	0.03	0.16	-0.08
[2H] produced butyrate	0.06	-0.10	0.18	-0.05	-0.08	-0.18	0.10
[2H] produced caproate	0.30	-0.08	-0.05	-0.09	-0.11	-0.12	0.01
[2H]^+ produced (pathway 1)	-0.03	-0.09	-0.02	0.14	0.0002	0.09	-0.04
[2H] produced (pathway 2)	0.03	-0.11	-0.03	0.12	-0.02	0.06	-0.03
[2H] utilized propionate	-0.26	-0.07	0.10	0.09	0.02	0.03	0.02
[2H] utilized valerate	0.23	0.01	-0.20	-0.08	-0.16	0.11	-0.12
[2H] utilized caproate	0.30	-0.08	-0.05	-0.09	-0.11	-0.12	0.01
[2H] utilized CH4	0.21	0.26	-0.29	-0.18	0.00	0.17	-0.08
[2H] utilized (pathway 1)	0.25	0.11	-0.24	-0.16	-0.10	0.08	-0.06
[2H] utilized (pathway 2)	0.03	0.18	-0.22	-0.10	-0.02	0.19	-0.07
[2H] gain (pathway 1)	-0.19	-0.17	0.12	0.25	0.06	0.04	0.00
[2H] gain (pathway 2)	0.02	-0.23	0.09	0.20	-0.01	-0.04	0.00
[2H] recovery (pathway1)	0.28	0.15	-0.21	-0.24	-0.10	0.00	-0.05
[2H] recovery (pathway2)	0.04	0.26	-0.22	-0.18	-0.01	0.16	-0.05

Bold cells show a significant correlation (). ¹Propanyl CoA as intermediate in caproate formation. ²Acetyl CoA as intermediate in caproate formation.