Star fruit leaf (Averrhoa bilimbi) in this study were extracted making use of the maceration method and the solvent was absolute ethanol. This study aims to see the effect on free-range chicken meat due to the administration of wuluh starfruit leaf extract. Histological description of the meat was taken from the chest muscle (M. pectoralis) and thigh muscle (M. femoralis) which had previously been treated with starfruit leaf extract. The analysis was carried out descriptively by looking at the histology of free-range chicken meat and compared with the normal picture. The results indicated there is no effect between the administration of starfruit leaf extract on the histology of native chicken meat. It can be seen that the muscle structure is normal, there are no dimensions and shape-changing of the muscle fibers and connective tissue. Conclusions can be drawn that the antibacterial ability of starfruit leaf, shows no effect on the chest and thigh muscles structure of native chickens.

This research aimed to evaluate the nutrient digestibility and the growth performance of broilers fed a different type of diet (TD) and feed additives (FA). A total of 264 day-old chicks (male, Lohmann) were randomly distributed into 24 pens (11 birds/pen). The experiment was designed by using a 2 x 4 factorial completely randomized design with the main factors TD and FA. The result shows that TD x FA interaction was significant (p<0.05-0.001) for feed intake (FI) and body weigt gain (BWG) of starter broilers. The TD, FA, and TD x FA affected (p<0.01-0.001) growth performance (GP) of growing broilers. TD and TD x FA interaction affected liver weight and the length of proventriculus and gizzard (p<0.05 to 0.001). Except for starch, the TD did not affect (p>0.05) nutrient digestibility (ND) and energy values (EV). Except for crude protein, FA did not affect (p>0.05) on ND and EV. The TD x FA interaction did not affect ND and EV. TD affected (p<0.05–0.001) on FI and BWG)of starter broilers. Except for day 7, FA influenced (p<0.01–0.001) FI and BWG of starter broilers. In conclusion, 1) The addition of Synbiotics and Allzyme SSF-E on Rice bran-sago diet (RSD) improved the GP of birds; and 2) The complex and multi enzymes work well in the rice bran-sago diet  3) RSD produced better growth performance of broiler starter.