Trout. They raise about 1 million rainbow and brown a year in the cold water hatchery to release in local waters, mostly Taneycomo lake. It is quite the production since the trout wouldn’t naturally live here. Millions of gallons of the coldest water are drawn from the bottom of the dam and pass through the hatchery ponds each day. Sometimes it isn’t cold enough so they refrigerate it. Sometimes it is too high in nitrogen so they bounce it off baffles to release the N2. Sometimes it is too low in oxygen so they inject liquid O2. They seem to have it figured out though. Survival rates are in the 90+ percent and this is claimed to be some of the very best trout fishing in the US. The blue colored one is a Rainbow variant that can not make yellow so it shows blue.  Weird!