Tuah et al., 1996. Livest. Res. Rural Dev., 8 (1)

The feeds comprised cocoa pod husk, coffee pulp, oil palm fruit bracts, untreated and NaOH-treated maize cobs (Group 1) and whole stover, stem, tassels, leaves and husk of two varieties of maize (Group 2). The nutritive index values of these feeds were also calculated. The relationship between the in sacco dry matter degradability and in vitro gas production values of the feeds in each group at 24, 48, 72 and 96h incubation periods was determined using linear regression analysis. The nutritive index values of the feeds in Group 1 ranged from 28 to 50 and for feeds in Group 2 from 25 to 43. The relationship between the in sacco dry matter degradability and the in vitro gas production values at the various incubation periods for the feeds in Groups 1 and 2 was high, positive, and significant (r = 0.58 to 0.95).