References
- Agricultural research council . 1980 . The Nutrient Requirements of ruminant Livestock , Farnham Royal, , UK : Commonwealth Agricultural Bureaux .
- Cheng , K.-J. and Costerton , J. W. 1980 . Digestive Physiology and Metabolism in Ruminants , Edited by: Ruckebusch , Y. and Thivend , P. 227 Lancaster, , UK : MTP Press .
- Clarke , R. J. T. and Bauchop , T. , eds. 1977 . Mierobial Ecology of the Gut. , N. Y. : Academic Press .
- Demeyer , D. I. 1981 . Agric. Environ , 6 : 295
- Forest , W. W. and Walker , D. J. 1971 . Adv. Mierob. Physiol. , 5 : 213
- Graham , N. M. 1967 . Austrol. J. Agric. Res. , 18 : 467
- Harrison , D. G. and McAllan , A. B. 1980 . Digestive Physiology and Metabolism in Ruminants , Edited by: Ruckebusch , Y. and Thivend , P. 205 Lancaster, , UK : MTP Press .
- Harrison , D. G. , Beever , D. E. and Osbourn , D. F. 1979 . Brit. J. Nutrit. , 41 : 521
- Hartnell , G. F. and Satter , L. D. 1979 . J. Anim. Sci. , 48 : 381
- Isaacson , H. R. , Hinds , F. C. , Bryant , M. P. and Owens , F. N. 1975 . J. Dairy Sci. , 58 : 1645
- Leng , R. A. 1982 . Nutritional Limits to Animal Production from Pastures , Edited by: Hacker , J. B. 427 Farnham Royal, , UK : Commonwealth Agricultural Bureaux .
- McRae , J. C. , Ulyatt , M. J. , Pearce , P. D. and Hendtlass , J. 1972 . Brit. J. Nutrit. , 27 : 39
- Stouthammer , A. H. and Bettenhausen , C. 1973 . Biochem. Biophys. Acta , 301 : 53
- Tamminga , S. 1981 . Ph. D. Thesis Wageningen Univ. .