According to one estimate, Europe’s farm animals have a bigger carbon footprint than its cars.

According to another estimate, leisure cruise ships had a 10x bigger footprint than all Europe's cars...

But still, it's great news to reduce farm animal carbon footprint. Not sure whether feeding larvae to piglets will achieve that though (they provide "stimulation"? ugh...), there seem to be better —direct— uses like insect flour, no need to even chew on them whole, although that's also an option.