ABSTRACT
This study was conducted to evaluate the effect of lignocelloses materials (rice straw and banana
leaves) on animal nutrition. The tested rations included combination of banana leaves at different rates
(5 , 10, 15, 20, 25 and 30 g water hyacinth leaves (WHL) plus 100 gm rice straw or banana leaves). All
rations gave good results, but rations included 30 g WHL / 100g rice straw or banana leaves was better
than all others. The increase (P≤0.05) in protein content from 2.30 and 12.50 for control to 10.00 and
17.10 % and decrease (P≤0.05) in fiber fraction, (cellulose and lignin), where. cellulose decreased
(P≤0.05) from 33.30 and 26.30% to 22.00 and 19.35% and lignin decreased (P≤0.05) from 11.60 and
8.50 to 5.95 and 5.35% in rice straw and banana leaves, respectively. In vitro digestibility studies
indicated significant (P< 0.05) higher values for treatment included 30% WHL with rice straw or
banana leaves, respectively.
Pleurotus ostreatus was used to treat by- products of rice straw, banana leaves and WHL by
using different amounts of Pleurotus ostreatus inoculum, using solid state fermentation technique. All
treatments gave good results, but treatment of added 12g Pleurotus ostreatus inoculum/100g rice straw
or banana leaves was better than other treatments. The protein content increased from (2.30 & 12.50)
for control to (7.80 & 16.04%) while there was decrease (P<0.05) in hemicellulose and lignin.
Hemicelluloses decreased (P< 0.05) from (27.50, 16.25) to (19.00, 12.80%) in rice straw and banana
leaves, respectively. DMD, OMD digestibility increased form (26.74 and 29.68) for control to (55.55
and 59.10%) for rice straw and from (29.55 and 31.60) for control to (50.20 and 56.20%) for banana
leaves, respectively. Cellulose, hemicellulose and lignin showed gradual decrease (P< 0.05) with
increasing inoculums of Pleurotus ostreatus, however, in vitro disappearance increased.