Feed grade refined sunflower oil v.s. Food grade sunflower oil

Feed grade refined sunflower oil is a lot less clear than food grade oil and the mainly used it to add nutritional value to feeds prepared for young chickens and pigs. Mainly feed manufacturers were producing it and bought in to enrich the feed materials, but by now most of the feed-grade oil manufacturers went out of business as feed manufacturers are using different methods to enrich their products.