References
- Bittante, G., Ramanzin, M., Schiavon, S., 1990. Rivista di suinicoltura 4:115–121.
- Carazzolo A., Schiavon S., Bittante G., 2001. Proc. 14th Nat. Cong. of ASPA, 12-15 June, Firenze: 326–328.
- Edwards, S.A., Riddoch, I., Fordyce, C., 1994. Proc. 45th EAAP Annual Meeting, Edinburgh.
- Eriksen, J., 2001. Grass and forage science. 56:317–322.
- E.R.M., 1999. Draft final report n. 5765, E.C. Directorate General XI, Bruxelles.
- Giardini, L., 1992. Agronomia generale, ambientale e aziendale, Patron editore, Bologna, Italy.
- Le Denmat, M., Dagorn, J., Aumaitre, A., Vaudelet, J.C., 1995. Pig News and Information, 16 (1):13N-16N.
- Mortensen, B., Ruby, V., Pedersen, B.K., Smidth, J., Larsen, V.A., 1994. Pig news and informations, 15:117N-120N.