Are insects a solution for feeding ruminants? Legislation, scientific evidence, and future challenges

Summary

Insects are promising alternatives to conventional protein and fat sources for ruminants.
Legislation is more restrictive for the use of protein-rich insect meals than for insect oils.
Insect meals seem to have lower in vitro digestibility than conventional plant meals.
Insect products may modulate the ruminal environment (e.g., CH4 emissions and biohydrogenation).