3Intergovernment Panel on Climate Change (IPCC). Climate Change 2007: The physical science basis. Working Group I contribution to the fourth assessment report of the intergovernmental panel on climate change [ M ]. Cambridge: Cambridge University Press, 2007: 23 -25.
8Leadbetter J R, Schmidt T M, Graber J R, et al. Acetogenesis from H2 plus CO2 by spirochetes from termite guts [ J]. Science, 1999, 283 (5402) : 686-689.
9Ouwerkerk D A, Maguire J, Klieve A V. Hydrogen utilising bacteria from the forestomach of eastern grey (Macropusgiganteus) and red ( Macropus rufus ) kangaroos [ J ]. Animal Production Science, 2009, 49 ( 11 ) : 1043-1051.
10Mutsvangwa T, Edwards I E, Topps J H, et al. The effect of dietary inclusion of yeast culture (Yea-Sacc) on patterns of rumen fermenta- tion, food intake and growth of intensively fed bulls [ J ]. Animal Production, 1992, 55 : 35-40.
