Not all feeds are the same, but the feeds Purina has for high growth are using highly digestible ingredients.
Through my work with the WV Extension Service, we actually got a conversion of 0.7 with a particular feed from a company in Pennsylvania. That is, for every 0.7 lbs., of fish feed, we got 1 lb., of flesh. These were rather extreme circumstances. Some of it had to do with the level of dehydration, but ...
