1Johnson, KA & Johnson, DE (1995) Methane emissions from cattle. J Anim Sci 73, 2483–2492.
2Ungerfeld, EM & Kohn, RA (2006) The role of thermodynamics in the control of ruminal fermentation. In Ruminant Physiology: Digestion, Metabolism and Impact of Nutrition on Gene Expression, Immunology and Stress, pp. 55–85 [Sejrsen, K, Hvelplund, T and Nielsen, MO, editors]. Wageningen: Wageningen Academic Publishers.
3Moss, AR, Jouany, JP & Newbold, J (2000) Methane production by ruminants: its contribution to global warming. Ann Zootech 49, 231–253.
4Morgavi, DP, Forano, E, Martin, C, et al. (2010) Microbial ecosystem and methanogenesis in ruminants. Animal 4, 1024–1036.
5McSweeney, CS & McCrabb, GJ (2002) Inhibition of rumen methanogenesis and its effects on feed intake, digestion and animal production. In Greenhouse Gases and Animal Agriculture, pp. 129–137 [Takahasi, J and Young, BA, editors]. Amsterdam: Elsevier Science.
6Itabashi, H (2002) Reducing ruminal methane production by chemical and biological manipulation. In Greenhouse Gases and Animal Agriculture, pp. 139–144 [Takahasi, J and Young, BA, editors]. Amsterdam: Elsevier Science.
7Wood, JM, Kennedy, FS & Wolfe, RS (1968) The reaction of multi-halogenated hydrocarbons with free and bound reduced vitamin B12. Biochemistry 7, 1707–1713.
8Chalupa, W (1977) Manipulating rumen fermentation. J Anim Sci 46, 585–599.
9May, C, Payne, AL & Stewart, PL, et al. (1995) .
10McCrabb, GJ, Berger, KT, Magner, T, et al. (1997) Inhibiting methane production in Brahman cattle by dietary supplementation with a novel compound and the effects on growth. Aust J Agric Res 48, 323–329.
11Tomkins, NW & Hunter, RA (2004) Methane reduction in beef cattle using a novel antimethanogen. Anim Prod Aust 25, 329.
12Goel, G, Makkar, HP & Becker, K (2009) Inhibition of methanogens by bromochloromethane: effects on microbial communities and rumen fermentation using batch and continuous fermentations. Br J Nutr 101, 1484–1492.
13Janssen, PH (2010) Influence of hydrogen on rumen methane formation and fermentation balances through microbial growth kinetics and fermentation thermodynamics. Anim Feed Sci Technol 160, 1–22.
14Sakurai, K, Ohkura, S, Matsuyama, S, et al. (2004) Body growth and plasma concentrations of metabolites and metabolic hormones during the pubertal period in female Shiba goats. J Reprod Dev 50, 197–205.
15Bhatta, R, Enishi, O, Takusari, N, et al. (2008) Diet effects on methane production by goats and a comparison between measurement methodologies. J Agric Sci 146, 705–715.
16Playne, MJ (1985) Determination of ethanol, volatile fatty acids, lactic and succinic acids in fermentation liquids by gas chromatography. J Sci Food Agric 36, 638–644.
17Demeyer, DI (1991) Quantitative aspects of microbial metabolism in the rumen and hindgut. In Rumen Microbial Metabolism and Ruminant Digestion, pp. 217–237 [Jouany, JP, editor]. Paris: INRA.
18Faichney, GJ, Graham, NM & Walker, DM (1999) Rumen characteristics, methane emissions, and digestion in weaned lambs reared in isolation. Aust J Agric Res 50, 1083–1089.
19Denman, SE & McSweeney, CS (2006) Development of a real-time PCR assay for monitoring anaerobic fungal and cellulolytic bacterial populations within the rumen. FEMS Microbiol Ecol 58, 572–582.
20Denman, SE, Tomkins, NW & McSweeney, CS (2007) Quantitation and diversity analysis of ruminal methanogenic populations in response to the antimethanogenic compound bromochloromethane. FEMS Microbiol Ecol 62, 313–322.
21Kang, S, Denman, SE, Morrison, M, et al. (2010) Dysbiosis of faecal microbiota in Crohn's disease patients as revealed by a custom phylogenetic microarray. Inflamm Bowel Dis 16, 2034–2042.
22Livak, KJ & Schmittgen, TD (2001) Analysis of relative gene expression data using real-time quantitative PCR and the 2(-Delta Delta C(T)) Method. Methods 25, 402–408.
23Ogimoto, K & Imai, S (1981) Atlas of Rumen Microbiology. Tokyo: Japan Scientific Societies Press.
24Shinkai, T, Ueki, T & Kobayashi, Y (2010) Detection and identification of rumen bacteria constituting a fibrolytic consortium dominated by Fibrobacter succinogenes. Anim Sci J 81, 72–79.
25Muyzer, G, de Waal, EC & Uitterlinden, AG (1993) Profiling of complex microbial populations by denaturing gradient gel electrophoresis analysis of polymerase chain reaction-amplified genes coding for 16S rRNA. Appl Environ Microbiol 59, 695–700.
26DeSantis, TZ, Hugenholtz, P, Larsen, N, et al. (2006) Greengenes, a chimera-checked 16S rRNA gene database and workbench compatible with ARB. Appl Environ Microbiol 72, 5069–5072.
27Altschul, SF, Gish, W, Miller, W, et al. (1990) Basic local alignment search tool. J Mol Biol 215, 403–410.
28Cole, JR, Chai, B, Marsh, TL, et al. (2003) The Ribosomal Database Project (RDP-II): previewing a new autoaligner that allows regular updates and the new prokaryotic taxonomy. Nucleic Acids Res 31, 442–443.
29Ludwig, W, Strunk, O, Westram, R, et al. (2004) ARB: a software environment for sequence data. Nucleic Acids Res 32, 1363–1371.
30Tomkins, NW, Colegate, SM & Hunter, RA (2009) A bromochloromethane formulation reduces enteric methanogenesis in cattle fed grain-based diets. Anim Prod Sci 49, 1053–1058.
31Trei, JE, Parish, RC, Singh, YK, et al. (1971) Effect of methane inhibitors on rumen metabolism and feedlot performance of sheep. J Dairy Sci 54, 536–540.
32Trei, JE, Scott, GC & Parish, RC (1972) Influence of methane inhibition on energetic efficiency of lambs. J Anim Sci 34, 510–515.
33Derwent, RG, Simmonds, PG, O'Doherty, S, et al. (2006) Global environmental impacts of the hydrogen economy. Int J Nuclear Hydrogen Prod Appl 1, 57–67.
34Solomon, S, Qin, D, Manning, M, et al. (2007) Technical summary. In Climate Change 2007: The Physical Science Basis. Contribution of Working Group I to the Fourth Assessment Report of the Intergovernmental Panel on Climate Change, pp. 19–91 and 214–215 [Solomon, S, Qin, D, Manning, M, Chen, Z, Marquis, M, Averyt, KB, Tignor, M and Miller, HL, editors]. New York: Cambridge University Press.
35Hungate, RE (1967) Hydrogen as an intermediate in the rumen fermentation. Arch Microbiol 59, 158–164.
36Wolin, MJ, Miller, TL & Stewart, CS (1997) Microbe–microbe interactions. In The Rumen Microbial Ecosystem, 2nd ed., pp. 467–491 [Hobson, PN and Stewart, CS, editors]. New York, NY: Blackie Academic and Professional.
37Williams, AG, Withers, SE & Joblin, KN (1994) The effect of cocultivation with hydrogen-consuming bacteria on xylanolysis by Ruminococcus flavefaciens. Curr Microbiol 29, 133–138.
38Pavlostathis, SG, Miller, TL & Wolin, MJ (1990) Cellulose fermentation by continuous cultures of Ruminococcus albus and Methanobrevibacter smithii. Appl Microbiol Biotechnol 33, 109–116.
39Bauchop, T & Mountfort, DO (1981) Cellulose fermentation by a rumen anaerobic fungus in both the absence and the presence of rumen methanogens. Appl Environ Microbiol 42, 1103–1110.
40Bryant, MP, Small, N, Bouma, C, et al. (1958) Bacteroides ruminicola N. sp. and Succinimonas amylolytica; the new genus and species; species of succinic acid-producing anaerobic bacteria of the bovine rumen. J Bacteriol 76, 15–23.
41Strobel, HJ (1992) Vitamin B12-dependent propionate production by the ruminal bacterium Prevotella ruminicola 23. Appl Environ Microbiol 58, 2331–2333.
42Purushe, J, Fouts, DE, Morrison, M, et al. (2010) Comparative genome analysis of Prevotella ruminicola and Prevotella bryantii: insights into their environmental niche. Microb Ecol 60, 721–729.
43Hungate, RE (1966) The rumen bacteria. In The Rumen and its Microbes, pp. 8–90 [Hungate, RE, editor]. New York, NY: Academic Press.
44Marounek, M, Fliegrova, K & Bartos, S (1989) Metabolism and some characteristics of ruminal strains of Megasphaera elsdenii. Appl Environ Microbiol 55, 1570–1573.
45Stewart, CS, Flint, HJ & Bryant, MP (1997) The rumen bacteria. In The Rumen Microbial Ecosystem, 2nd ed., pp. 10–72 [Hobson, PN and Stewart, CS, editors]. London and New York: Elsevier.