I guess I'd summarize the feed conversion part as follows:
- Crickets are slightly better than poultry at converting poultry feed into protein.
- Crickets are great at converting processed grocery store waste into protein; poultry can't do this at all.
- Both species are awful at converting low quality food waste (a mix of chicken poop and straw) into protein.
- The efficient feed conversion of modern poultry comes only after years of research, development and breeding; the efficient feed conversion of insects comes "out of the box" and will only improve over time.