Looks like the protein can be consumed by humans as well, since many people eat roaches. Can't the protein powder be used like whey isolate powder? If yes, that's a massive industry to tap.
But if the roaches are farmed to produce food that is given to animals that are consumed by humans, the extra level of indirection makes everything more easy.
"poultry litter or broiler litter is a mixture of poultry excreta, spilled feed, feathers, and material used as bedding in poultry operations ... it is now also used as a livestock feed as a cost-saving measure compared with other feedstock materials, particularly for beef animals."
https://en.wikipedia.org/wiki/Poultry_litter#Use_as_cattle_f...
And yes, disgusting. Also a workaround for organic designations. You can have an "organic" milk production operation that uses waste from chickens not raised under "organic" standards. Because there's a loophole for using waste as food. I also remember experiments feeding newspaper waste to cows, but I don't think that worked very well.
[1] https://www.snopes.com/fact-check/do-farmers-feed-cows-skitt...
[2] https://money.cnn.com/2012/10/10/news/economy/farmers-cows-c...
[3] http://fortune.com/2017/01/23/farmers-cows-red-skittles/
Through skimming some pages on the FDA website I see regulations based on preventing contamination to animal feed, and that the center for veterinary medicine supplies guidelines and recommendations, but can you point me to some regulation of what ranches are allowed to feed their cows? I'd be curious, I don't see any reason that cattle feed supplements couldn't toss in some insect protein powder, I'm sure the only reason they don't is there are cheaper sources like whey.
It is ok to give the cattle insect (roach) power.
It is not ok to give them the waste from the restaurant that may included good food, rotten fruit, paper napkins (did one of the clients had flu?), something brown that was in the fridge, a piece of meat (did the butchered cow had the mad cow disease? let's break the cicle), some leftovers of the food of the dog of the owner, a rat (can I put the dead rat here? it was a natural dead after it was hit with a stick), some roaches that were unsuspectingly eating some leftovers, some flies and maggots, and some nasty stuff.
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[1] https://griloprotein.com.au/product/cricket-protein-powder-c...