I am not very familiar with 'how the sausage is made' lol but have seen a few things out there.
Difference between wet/dry extrusion: https://www.quora.com/What-are-the-...et-extrusion-when-producing-fish-feed-pellets
This is from NortfFin "Double screw Steam Extrusion is a gentle form of cooking which means beneficial nutrients are kept intact right through to the finished product
unlike conventional dry extruding process that degrades and destroys significant percentage of nutrients and vitamins."
Not saying I support NorthFin at all, just quoting from their website the process they say they use. http://www.canadian-aquatic-feed.com/
Difference between wet/dry extrusion: https://www.quora.com/What-are-the-...et-extrusion-when-producing-fish-feed-pellets
This is from NortfFin "Double screw Steam Extrusion is a gentle form of cooking which means beneficial nutrients are kept intact right through to the finished product
unlike conventional dry extruding process that degrades and destroys significant percentage of nutrients and vitamins."
Not saying I support NorthFin at all, just quoting from their website the process they say they use. http://www.canadian-aquatic-feed.com/
Rd would best answer. Tjat being said ive fed almost exclusively NLS products and have no regrets....i do mix in some OO but as far as the polys they get tilapia and nls mega fish. Worms as a treat