This will tickle you.


Can you spot the fish feeding predominantly on feed? All from same pond.


Top are on feed. Note very large and pale livers plus lost of visceral fat. No digesta in GIT. Lower are on natural forage. Note darker and smaller liver with much less visceral fat. Stomach loaded with invertebrate prey.




My keyboard now smells like fish guts.


Aquaculture
Cooperative Research / Extension
Lincoln University of Missouri