I meant to comment before but did not want to go down another tangent then. I was an HVAC Technician repairing furnaces ACs and the like. I was in a 3 story condo that was filled with aquariums with boas pythons and one croc. Also lizards and such. He was trying to interbreed them to get a certain color which would have made him a lot of money. Is that what you are doing?Know this much. The liver is full of vitamins and best way to feed that is whole foods. For example, my boas get fed whole rodents. Understanding being the internal organs needed. These are frozen therefore not sure about them deriving any benefits from live gut bacteria although my source kills and freezes to order and usually dead only four days from when I get them and usually consumed within two months of receiving them. Still considering perhaps occasional treat with fresh kill.
Saw a documentary on lost at sea and apparently when starving we revert to targeting internal organs as disgusting as that now seems.
Orcas target the liver of Great Whites tossing the rest away. Rather wasteful therefore good to know we aren't the only animals that produce waste although won't see an Orca at McDonald which we had last night