I was being polite Fred. My farm is a historical farm and it has been in the family for more than 100 years. We have a chicken house that was used extensively; there was an egg route, a brooder house for hatching, and meat, of course for selling and making a profit. The quest for dual purpose birds was everyday life on our farm. The chicken house was built to utilize solar energy -- grandpa was well before his time on ideas about concrete. So, without sounding like "all that" I'm reasonably familiar with the history of our farm and caring for animals. We also have a hog house, a "crib" where grain was stored (and on a good year still used) and a seed house for the next years planting; coal house, smoke house, etc. The walnut tree was used to hang the hogs for slaughter -- the pulley is still in the tree. I'm not planning on slaughtering any hogs in the near future, but the buildings have all been well cared for and we could easily begin historic farming if the need arises.
I have some interesting ag books on poultry, original to our farm, that I would like to share but I can't seem to find a way to upload pdf files. Education, university education, was very important to the family. Feeding chickens so they would produce a profit was important then, as it is now. If you raised chickens to make money on a farm you looked carefully at how you fed your chickens, how the feed related to egg production, health, and overall flock management. Increasing your profit margin through good farm management was always factor on this farm. While, yes, there was a pecking order for animal feed, there was also the "bottom line" -- even 100 years ago. Thus, the "Poultry Handbooks" of the day. They didn't let the chickens run around the farm "free ranging" there was a strict flock management. Interesting enough, that deep yellow/orange yolk we try to get with natural free range chickens, they tried to get rid of -- strange how things come full circle.