In general, smaller animals with a shorter lifespan are more efficient at their conversion ratio of "plant calories vs meat calories", so if someone worries abo

In general, smaller animals with a shorter lifespan are more efficient at their conversion ratio of "plant calories vs meat calories", so if someone worries about the use of lots of farmland to grow stuff to feed animals instead of using a smaller amount of farmland to feed humans directly, then cattle production (unless we reduce so much that we keep only the number of cattle which are grazing on non-arable land) is worse than chicken farms. In terms of climate change, cattle-produced methane makes cattle production worse than chicken farms. In terms of animal welfare...... it's hard to say, both are bad in different ways that are not directly comparable especially given the idea of comparing the suffering of single "more capable mind" versus many "less capable minds", there's no consensus on that.