Supplement (g DM/day/animal) Treatment Hay NSC RB MB CB T 1 ad libitum 50 - - - T 2 ad libitum 50 300 - - T 3 ad libitum 50 - 300 - T 4 ad libitum 50 - - 300 NSC:Noug Seed Cake; RB:Raw Barley; MB:Malted Barley; CB:Cracked Barley

Table 1: Experimental treatments.