Fulvic Acid from Oil Palm Empty Fruit Bunches As Feed Additive Improves Digestive Tract and Intestinal Morphology in Broilers: Aditif Pakan Asam Fulvat Tandan Kosong Kelapa Sawit Untuk Memperbaiki Saluran Pencernaan Dan Morfologi Usus Pada Ayam Pedaging. JINTP 2025, 23 (2), 138-145. https://doi.org/10.29244/jintp.23.2.138-145.