References
- Freire, J.P.B., Guerreiro, A.J.G., Cunha, L.F., Aumaitre, A., 2000. Animal Feed Science and Technology 87:71–83.
- Groot, J.C.J., Cone, J.W., Williams, B.A., Debersaques, F.M.A., Lantinga, E.A., 1996. Animal Feed Science and Technology 64:77–99.
- Houdijk, J., 1998. PhD Thesis, Wageningen Agricultural University, NL.
- Lowe, S.E., Theodorou, M.K., Hespell, R.B., 1985. Book of General Microbiology 131:2225–2229.
- Williams, B.A., Verstegen, M.W.A., Tamminga, S., 2001. Nutrition Research Reviews 14:207–227.