YOHANA NAINAIF Pengarang Catootjie L. Nalle, S.Pt, M.Agr.St., Ph.D Dosen Pembimbing 1 drh. Novianti N. Toelle, M.Sc. Dosen Pembimbing 2 Helda, S.Pt., M.Si Penguji 1 Dr. Redempta Wea, S. Pt., MP Penguji 2 Catootjie L. Nalle, S.Pt, M.Agr.St., Ph.D Penguji 1 drh. Novianti N. Toelle, M.Sc. Penguji 2 AHMAD FADIL Contributor

Broiler is a type of bird that is easily reared and efficiently converts feed to meat. The harsvesting time of broilers is about 28 to 45 days with the range of body weight around 1.2 to 1.9 kg/bird. The fast growth of broilers should be supported by the healthy and well development of gut. The morphology and histology of gut and its function are affected by a number of factors such as feed. The aim of the present study was to evaluate the development of broiler gut fed diets containing moringa leaf meal supplemented with synthetic amino acid. A total of 180 unsexed broilers were randomly distributed into 18 pens (10 birds/pen). The experiment was designed using a 2 x 2 factorial design. The first main factor was the level of moringa leaf meal (MLM, 0%, 5%, and 7,5%) and the second main factor was synthesis amino acid (AA, with and without). The results showed that the level of MLM affected (p <0,05 – 0,01) the weight of liver, spleen and pancreas as well as the absolut empty weight and length of ventriculus, gizzard, small intestine, caecum and colon. The supplementation of AA (lysine and methionine) and MLM x AA did not significantly affected (p>0,05) all variables measured. In conclusion, the inclusion level of MLM up to 7.5% without lysine and methionine resulted in positive impact on the growth performance of broilers during 42 days experiment.