MARIA YVETTE Z. REYES, AND JAN ZIMMER ZAMORA. July 2022. EFFECT OF SOURSOP (Annona muricata) AND AVOCADO (Persea americana) LEAF MEAL ON THE PERFORMANCE OF COBB BROILER (Gallus = galua domesticus). Bachelor of Science in Agriculture major in Animal Science. Pampanga State Agricultural University, PAC, Magalang, Pampanga. Adviser: FRANCISCO B. SIMBULAN JR., M.S.A. The study was conducted to determine the growth performance of broiler chicken as affected by different levels of soursop and avocado leaf meal in growing performance. The study was conducted from May 15, 2022 to June 17, 2022 at Brgy. Talaga, Capas, Tarlac. One hundred eighty broilers were randomly assigned to one of six treatments, which were replicated three times after the two (2) factorial experiments were set up in a completely randomized design (CRD). Each treatment was composed of thirty heads. The treatments were Factor A-A1B1-control/pure commercial feeds, A1B2-5% of soursop leaf meal + 95°o of commercial feeds, and A1B3-10°o of soursop leaf meal + 90% of commercial feeds. Factor B-A2B1 control/pure commercial feeds, A2B2-5% of avocado leaf meal + 95°» of commercial feeds, and A2B3 10°%o of avocado leaf meal + 90% of commercial feeds.