%0 Conference Proceedings %T Effect of lucerne hay particle size and physical effectiveness factor of diet on utilisation of soya hulls by dairy cows %A Behgar, Mehdi %A Valizadeh, Reza %A Naserian, Abbas Ali %A EFTEKHARI SHAHROUDI, Feradoun %A Nassiri, Mohammadreza %J British Society of Animal Science %D 2008