This is going to take me a while, but I noticed this on the first page:I don't know if its that the majority of the research has a bias towards commercial production, or this was aimed at small scale commercial operation deliberately, or the intent was simply not to focus on 'pet' flocks, but his definitely has a "commercial" vibe in some of the numbers for space, light, and age.
Still a good read - I like the chart at p 178 - its an area where my poultry knowledge is particuarly weak.
Legal disclaimer:
This document provides a general description of management and health for keeping
poultry, especially for small producers and hobby flock owners. It should not be viewed as a
substitute for legal advice.