Machado, M.Engrola, SofiaColen, R.Conceicao, L. E. C.Dias, J.Costas, B.2020-07-242020-07-242019-081050-46481095-9947http://hdl.handle.net/10400.1/14287Methionine is the first limiting AA in fish diets, particularly in those containing high levels of plant protein sources (e.g. soybean). It is also important to highlight that methionine presents a key role in the immune system of many vertebrate animal models, including fish.engconference object10.1016/j.fsi.2019.04.251