Comparison of methane produced by straw fed sheep in open-circuit respiration with methane predicted by fermentation characteristics measured by an in vitro gas procedure

Aiple, K.-H., 1993. Vergleichende Untersuchungen mit Pansensaft und Kot als Inoculum im Hohenheimer Futterwerttest. Dissertation. Universität Hohenheim, Stuttgart, Germany. Beever, 1993, Ruminant animal production from forages—present position and future opportunities Blaxter, 1965, Prediction of the amount of methane produced by ruminants, Brit. J. Nutr., 19, 511, 10.1079/BJN19650046 Blümmel, 2000, Predicting the partitioning of fermentation products by combined in vitro gas volume and true substrate degradability measurements: opportunities and limitations, 48 Blümmel, 2001, Predicting ruminal microbial efficiency of dairy rations by in vitro techniques, Livest. Prod. Sci., 68, 107, 10.1016/S0301-6226(00)00241-4 Blümmel, 1997, The degradability characteristics of 54 roughages and roughage neutral detergent fibre as described by in vitro gas production and their relationship to voluntary feed intake, Brit. J. Nutr., 77, 757, 10.1079/BJN19970073 Blümmel, 1997, In vitro gas production—a technique revisited, J. Anim. Physiol. Anim. Nutr., 64, 24, 10.1111/j.1439-0396.1997.tb00734.x GraphPad Prism, 1994. GraphPad Software, San Diego, CA, USA. Goering, 1970 Leng, 1993, Quantitative ruminant nutrition—a green science, Aust. J. Agric. Res., 44, 363, 10.1071/AR9930363 Menke, 1979, The estimation of the digestibility and metabolizable energy content of ruminant feedstuffs from the gas production when they are incubated with rumen liquor, J. Agric. Sci., 93, 217, 10.1017/S0021859600086305 Moss, 1994, The effect of alkali treatment of cereal straws on digestibility and methane production by sheep, Anim. Feed Sci. Technol., 49, 245, 10.1016/0377-8401(94)90050-7 Statistical Analysis System, 1999. SAS Institute Inc. Release 6.03. SAS, Cary, NC, USA. Van Soest, 1994 Wolin, 1960, A theoretical rumen fermentation balance, J. Dairy Sci., 43, 1452, 10.3168/jds.S0022-0302(60)90348-9