Pig production systems

International publications

Olsen, A.W., Vestergaard, E. M., Dybkjær, L., 1999. Different kinds of roughage as additional rooting substrates for slaughter pigs. Anim. Sci. In press.

Olsen, A.W., 2000: Behaviour of slaughter pigs kept in pens with outdoor runs: I. Effect of access to roughage and shelter on oral activities. Livestock Production Science, Submitted February 2000.