he present study was to evaluate the effects of nano-encapsulated Phaleria
macrocarpa fruit extract (NEPM) in drinking water on the digestive organs and carcass
characteristic of broiler chickens. A total number of two hundred male broiler chicks
were randomly divided into five treatments with four replicates, each replicate contained
ten chickens. Broiler chickens have received a basal diet supplemented with or without
experimental treatments. Five experimental treatments were: control diet (T0; negative
control), diet with tetracycline (T1; positive control), diet with 2.5% of Phaleria
macrocarpa fruits extract (T2), diet with 2.5% NEPM (T3), and diet with 5.0% NEPM
(T4). The diets were based on yellow corn and soybean meal and contained 20.44%
crude protein, 2,917.47 kcal/kg metabolizable energy, 0.84% Calcium, and 0.51%
available Phosphorus. On the 35th day, one bird from each replicate pen was
slaughtered. Carcass characteristics and weights of digestive organs were measured.
Data were statistically analyzed using ANOVA in a completely randomized design. The
orthogonal contrast test was used to separate the mean when the P-value was less than
5%. Results showed that the use of nano-encapsulated Phaleria macrocarpa fruits
extracts up to 5.0% in the diet did not give any significant effect on the carcass,
digestive organs, heart and liver weights of broiler chickens. It can be concluded that the
supplementation of Phaleria macrocarpa fruits extracts whether nano-encapsulated or
not, did not affect carcass weight, weights of digestive organs and weights of the heart
and liver of broiler chickens.