1[2]Sutton J D,Dhanoa M S,Morant S V,et al.Rates of production of acetate,propionate,and butyratein the rumen of lactating dairy cows given normal and low-roughage diets [J ].J Dairy Sci,2003,86:3620～3633.
3[1]Weston R H,Hogan J P.The digestion of pasture plants by sheep.I.Ruminal production of volatile fatty acids by sheep offered diets of ryegrass and forage ats [J].Australian J Agric Res,1968,19:419～432.
4[2]Williams V J,Hutchings T R,Archer K A.Absorption of volatile fatty acids from the reticulorumen and abomasums of sheep [J].Aust Biol Sci,1968,21:89.
5[3]Peters J P,Shen R Y W,Robinson J A,Chester S T.Disappearance and passage of propionic acid from the rumen of the beef steer [J].J Anim Sci,1990a,68:3337～3349.
6[4]Peters J P,Shen R Y W,Chester S T.Propionic acid disappearance from the foregut and small intestine of the beef steer [J].J Anim Sci,1990b,68:3905～3913.
7[5]Peters J P,Shen R Y W,Robinson J A.Disappearance of acetic acid from the bovine reticulorumen at basal and elevated concentrations of acetic acid[J].J.Anim.Sci,1992,70:1509.
8[6]Bergman N N,Reid R S,Murray M G,Brockwayand J M,Whitelaw F G.Interconversions and production of volatile fatty acids in the sheep rumen[J].Biochem J 1965,97:53～58.
9[7]Dijkstra J.Mathematical Modelling and Integration of Rumen Fermentation Processes [D].Wageningen Agricultural University,Wageningen,The Netherlands.1993,222.
10[8]Sutton J D,Morant S V.Measurement of the rate of volatile fatty acid production in the rumen.Agriculture Research Council,London,1978.1～10.
