How would you suggest increasing the microbial production in in vitro rumen.? We are currently working with a 5,000 liter reactor using sugar beets as a feed stock processing about one ton per day. The value of the process is driven by the amount of microbial protein produced as this material has the same nutritional profile as fish pulled from the sea. The project objective is to produce a replacement for fish meal derived from waste paper, food waste, and/or low value crop residue.