Citation | Nha PT, Thuy LT (2022). Effect of fermented feed addition and crude protein level on performance of local chickens in the south of vietnam. Adv. Anim. Vet. Sci. 10(12): 2596-2601. DOI | http://dx.doi.org/10.17582/journal.aavs/2022/10.12.2596.2601