ME = 2.20 + 0.136* Gv + 0.057* CP + 0.0029*CF;
OMD = 14.88 + 0.88Gv + 0.45CP +0.651XA;
SCFA = 0.0239*Gv – 0.0601;
Where Gv, CP, CF and XA are net gas production (ml/200mg, DM) at 24 h incubation time crude protein, crude fibre and ash of the incubated sample respectively.