“…Plant‐derived substances have been employed as functional feed supplements for commercial fish to improve growth performance (Acar, Kesbiç, Yilmaz, Gültepe, & Türker, ; Giri et al., ; Zeppenfeld et al., ; Zheng et al., ), antioxidant activity (Pês, Saccol, Ourique, Londero, Gressler, Finamor et al., ; Pês, Saccol, Ourique, Londero, Gressler, Golombieski et al., ; Saccol et al., ) and storage and to produce a delay in the deterioration of fillets (Álvarez, García, Jordan, Martínez‐Conesa, & Hernández, ), thereby not only improving fish health but also increasing productivity and the value of the commercial product produced. Our results reveal that the inclusion of EOMS in feed did not affect growth rates after 90 days of experimentation, which has been also shown by Saccol et al.…”