• Archer JA, Richardson EC, Herd RM & Arthur PF (1999) Potential for selection to improve efficiency of feed use in beef cattle: a review. Aust J Agric Res 50: 147161.
  • Avrahami S, Liesack W & Conrad R (2003) Effects of temperature and fertilizer on activity and community structure of soil ammonia oxidizers. Environ Microbiol 5: 691705.
  • Bano N, Ruffin S, Ransom B & Hollibaugh JT (2004) Phylogenetic composition of Arctic Ocean archaeal assemblages and comparison with Antarctic assemblages. Appl Environ Microbiol 70: 781789.
  • Basarab JA, Price MA, Aalhus JL, Okine EK, Snelling WM & Lyle KL (2003) Residual feed intake and body composition in young growing cattle. Can J Anim Sci 83: 189204.
  • Brockman RP (1993) Glucose and short-chain fatty acid metabolism. Quantitative Aspects of Ruminant Digestion and Metabolism (ForbesJM & FranceJ, eds), pp. 249265. CAB International, London.
  • Edwards JE, Bequette BJ, McKain N, McEwan NR & Wallace RJ (2005) Influence of flavomycin on microbial numbers, microbial metabolism and gut tissue protein turnover in the digestive tract of sheep. Br J Nutr 94: 6470.
  • Fromin N, Hamelin J, Tarnawski S, Roesti D, Jourdain-Miserez K, Forestier N, Teyssier-Cuvelle S, Gillet F, Aragno M & Rossi P (2002) Statistical analysis of denaturing gel electrophoresis (DGE) fingerprinting patterns. Environ Microbiol 4: 634643.
  • Guan LL, Hagen KE, Tannock GW, Korver DR, Fasenko GM & Allison GE (2003) Detection and identification of Lactobacillus species in crops of broilers of different ages by using PCR-denaturing gradient gel electrophoresis and amplified ribosomal DNA restriction analysis. Appl Environ Microbiol 69: 67506757.
  • Kamra DN (2005) Rumen microbial ecosystem. Curr Sci 89: 124135.
  • Knarreborg A, Simon MA, Engberg RM, Jensen BB & Tannock GW (2002) Effects of dietary fat source and subtherapeutic levels of antibiotic on the bacterial community in the ileum of broiler chickens at various ages. Appl Environ Microbiol 68: 59185924.
  • Krause DO & Russell JB (1996) How many ruminal bacteria are there? J Dairy Sci 79: 14671475.
  • Krause DO, Denman SE, Mackie RI, Morrison M, Rae AL, Attwood GT & McSweeney CS (2003) Opportunities to improve fiber degradation in the rumen: microbiology, ecology, and genomics. FEMS Microbiol Rev 27: 663693.
  • Kobayashi Y (2006) Inclusion of novel bacteria in rumen microbiology: need for basic and applied science. Anim Sci J 77: 375385.
  • Ley RE, Turnbaugh PJ, Klein S & Gordon JI (2006) Microbial ecology: human gut microbes associated with obesity. Nature 444: 10221023.
  • McEwan NR, Abecia L, Regensbogenova M, Adam CL, Findlay PA & Newbold CJ (2005) Rumen microbial population dynamics in response to photoperiod. Lett Appl Microbiol 41: 97101.
  • Muyzer 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: 695700.
  • Nicol GW, Glover LA & Prosser JI (2003) Spatial analysis of archaeal community structure in grassland soil. Appl Environ Microbiol 69: 74207429.
  • Nkrumah JD, Okine EK, Mathison GW, Schmid K, Li C, Basarab JA, Price MA, Wang Z & Moore SS (2006) Relationships of feedlot feed efficiency, performance, and feeding behavior with metabolic rate, methane production, and energy partitioning in beef cattle. J Anim Sci 84: 145153.
  • Stewart CS, Flint HJ & Bryant MP (1997) The rumen bacteria. The Rumen Microbial Ecosystem, 2nd edn (HobsonPN & StewartCS, eds), pp. 1072. Springer-Verlag, New York.
  • Tannock GW (2002) Analysis of the intestinal microflora using molecular methods. Eur J Clin Nutr 56: (suppl 4): S44S49.
  • Turnbaugh PJ, Bäckhed F, Fulton L & Gordon JI (2008) Diet-induced obesity is linked to marked but reversible alterations in the mouse distal gut microbiome. Cell Host Microbe 3: 213223.
  • Van Hannen EJ, Zwart G, Van Agterveld MP, Gons HJ, Ebert J & Laanbroek HJ (1999) Changes in bacterial and eukaryotic community structure after mass lysis of filamentous cyanobacteria associated with viruses. Appl Environ Microbiol 65: 795801.
  • Walter J, Tannock GW, Tilsala-Timisjarvi A, Rodtong S, Loach DM, Munro K & Alatossava T (2000) Detection and identification of gastrointestinal Lactobacillus species by using denaturing gradient gel electrophoresis and species-specific PCR primers. Appl Environ Microbiol 66: 297303.