Liu, J.-X., Ørskov, E.R. and Chen, X.B. 1999. Optimization of steam treatment as a method for upgrading rice straw as feeds. Animal Feed Science Technology 76, 345-357
Ørskov, E.R., Meehan, D.E., MacLeod, N.A. and Kyle, D.J. 1999. Effect of glucose supply on fasting nitrogen excretion and effect of level and type of volatile fatty acid infusion on response to protein infusion in cattle. British Journal of Nutrition 81, 389-393.
Fonseca, A.M., Dias da Silva, A.A. and Ørskov, E.R. 1999. In sacco degradation characteristics as predictors of digestibility and voluntary intake of roughages by matiure ewes. Animal Feed Science and Technology72, (3-4) 205-219.
Long, R.J., Apori, S.O., Castro, F.B and Ørskov, E.R. 1999. Feed value of native forages of the Tibetan Plateau of China. Animal Feed Science and Technology 80, 101-113.
Chen, X.B., Subba, D.B., Ørskov, E.R. and Jayasuriya, M.C.N. 1999. Purine nitrogen index, potentially a new parameter for rapid feed evaluation in ruminants. Nuclear based technologies for estimating microbial protein supply in ruminant livestock. International Atomic Energy Agency. Final research Cordination Meeting of the FAO/IAEA Coordinated Research Programme. 24-28 August, Vienna. pp 97-110
Ørskov, E.R. 1999. New challenges for livestock research and production in Asia. Outlook on Agriculture, 28, No.3, pp 179-185
Teguia, A., Ørskov, E.R. and Kyle, D.J. 1999. A note on ruminal in situ degradability and in vitro gas production of some West African grass species and multipurpose tree leaves. Journal of Animal Feed Sciences 8, No.3, 415-424
Ørskov, E.R. 1999. Is present day science in ruminant nutrition relevant to clients' problems with emphasis on developing countries? In: "Recent Advances in Ruminant Nutrition Research and Development". 6th Biennial Symposium on Ruminant Nutrition. ARC, Animal Nutrition and Animal Products Institute (Irene), October 15, 1999, South Africa. pp 104.
Ørskov, E.R. 1999. Animal feeds and waste recycling. Landmark, Edition No. 31, Aug./Sept. 1999, p7.
Verbic, J., Ørskov, E.R., Zgajnar, J., Chen, X.B. and Znidarsic-Pongrac, V. 1999. The effect of method of forage preservation on the protein degradability and microbial protein synthesis in the rumen. Animal Feed Science and Technology 82, 195-212.
Blummel, M., Mgomezulu, R., Chen, X.B., Makker, H.P.S., Becker, K. and Ørskov, E.R. 1999. The modification of an in vitro gas production test to determine roughage related differences in in vivo microbial protein as estimated by the excretion of purine derivatives. Journal of Agricultural Science 133, 427-431.
Long, R.J., Dong, S.K., Chen, X.B. and Ørskov, E.R. 1999. Preliminary studies on urinary excretion of purine derivatives and creatinine in yaks. Journal of Agricultural Science 133, 427-431.
Ørskov, B. 1999. Technique of in vivo determination of intake and digestibility of forages. Options mediteraneennes. Serie B, Etudes et Reserches 18: 37-38
Ørskov, E.R. 1999. Supplement strategies for ruminants and management of feeding to maximise utilization of roughages. Preventative Veterinary Medicine 38: 179-185