Table 3.
Item | FTOPF level (%)1) | SEM | |||
---|---|---|---|---|---|
| |||||
0 | 33 | 67 | 100 | ||
Digestibility (%) | |||||
DM | 63.44b | 71.56a | 70.75a | 70.59a | 0.99 |
OM | 65.06b | 72.92a | 72.23a | 72.31a | 0.96 |
CP | 64.95b | 75.14a | 74.37a | 73.79a | 1.81 |
NDF | 55.21b | 66.00a | 64.11a | 61.81a | 1.29 |
ADF | 34.23b | 49.09a | 46.46a | 48.83a | 2.69 |
ADL | 20.67b | 38.15a | 33.88a | 31.28a | 2.40 |
Estimated energy intake2) | |||||
ME (Mcal/d) | 2.56 | 3.14 | 2.96 | 2.82 | 0.15 |
ME (Mcal/kg DM) | 2.31b | 2.58a | 2.56a | 2.56a | 0.03 |
SEM, standard error of the means (n = 4); DM, dry matter; OM, organic matter; CP, crude protein; NDF, neutral detergent fiber; ADF, acid detergent fiber; ADL, acid detergent lignin; ME, metabolizable energy; OPF, oil palm frond.
Level of FTOPF in diets: 0%, 33%, 67%, and 100% replacement of OPF with FTOPF.
1 kg DOM = 3.8 Mcal ME/kg [30].
Mean within rows followed with different superscript letters are statistically different (p<0.05).