Dietary Intake of Selenoneine Enhances Antioxidant Activity in the Muscles of the Amberjack Seriola dumerili Grown in Aquaculture.

The selenium (Se)-containing imidazole compound selenoneine (2-selenyl-N, N, N-trimethyl-L-histidine) is a strong scavenger of reactive oxygen species (ROS) in the blood and tissues of fish. Intravenous injection of selenoneine into yellowtail has been shown to delay changes in meat color and prevent met-myoglobin formation in red muscle. In this study, to determine whether selenoneine can improve stress tolerance and meat quality in fish, we examined the biological antioxidant functions of selenoneine in fish in vivo.