BHA, butylated hydroxyanisole, is a synthetic antioxidant that may be added to fish oil to limit rancidity of the fat.
BHT, butylated hydroxytoluene, is a synthetic antioxidant that may be added to fish oil to limit rancidity of the fat.
Brominated flame retardants
Brominated flame retardants are a group of different substances that contain the chemical element bromine. They are used in a variety of products, including textiles and electronics, to prevent products from catching fire.
Dioxins, furans and dioxin-like PCBs
Polychlorinated dibenzodioxins (PCDD) and polychlorinated dibenzofurans (PCDF) are generally referred to as dioxins and furans. They are both organic environmental toxins that contain chlorine.
Ethoxyquin is a synthetic antioxidant used to protect fat in feed against rancidity. It is a legal requirement to add either of the synthetic antioxidants ethoxyquin or BHT to fishmeal prior to shipping to ensure safe transportation and storage