Comment by temporalparts

My understanding (no sources) is that better treated chickens have:

- Fewer hormones for growth

- Fewer antibiotics (diseases spread rapidly in confined spaces)

- Higher quality meat (Chicken gets more exercise and movement, as well as increased quality of feed)

- Higher nutritional value (increased exercise and sunlight, potentially)

In terms of calories though, it's probably a wash, and more inefficient from calories/money.

edit: formatting