Description
What it is. Fish oil stearin is a fraction of fish oil with a high content of saturated fat. It is obtained during the refining of crude fish oil by winterisation, a process whereby the saturated fats are solidified by cooling and then collected.
What it is for. This raw material supplies energy and fatty acids to compound feed. Due to its high saturated fatty acid content, it is generally used as a concentrated lipid source, particularly when a fat of firmer consistency than standard fish oil is required. It is used by compound feed manufacturers across species, as a partial substitute for or complement to other lipid sources.
Points to watch. Crude fat content must be declared, along with moisture content if above 1 %. Fatty acid composition may vary depending on fish origin and the winterisation process, which warrants control upon receipt. Storage protected from oxidation is advisable given the sensitivity of marine fats.
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