Testing of artificial feed by using raw material from Euthynnus affinis waste flour for gourami (Osphronemus gourami)Suraiya Nazlia, Ismarica Ismarica, Muhammad Alfarizy, Hatfan Aufari, Muhammad Syauqi, Suri Purnama Febri, Ika Rezvani Aprita and Virna MuhardinaBIO Web Conf., 156 (2025) 03031DOI: https://doi.org/10.1051/bioconf/202515603031