I read your article and thank you for putting it together. There is a lot of really good information in there. I have no doubt that your chickens eat better than most. I think the struggle for most people is they have limitations that prevent them from duplicating this.you may find an article I wrote on it recently of some use, https://www.backyardchickens.com/ar...eat-tears-a-calculator-or-deep-pockets.78655/
The biggest limitation is that a lot of us don't have the ability to free range our birds in a nutritionally diverse environment. Whether it is space, predator load, or too poor/dry an environment, most of the people on this forum are keeping their chickens in conditions where very few calories are coming from forage. Although that doesn't preclude making your own food, it increases and complicates the effort. I think free range chickens are eating a lot more animal protein in the form of insects, snakes, and even road kill than people suspect. Making sure your chickens get the right amount of high quality protein and complete amino acids will be the biggest challenge and expense.
The second limitation is the amount of work involved in sourcing ingredients and crafting the daily meals. Particularly, if you expect to travel and have someone else tending your chickens from time to time. Even with family and good friends, I can only ask or expect them to do so much.
I think what is realistic for most of us it to use commercial feed as a base, and then give them some supplemental, unprocessed food. If your chickens have access to quality free range, plus commercial food they are probably doing pretty good. But otherwise people can sprout grains/peas/seeds, raise insects, and give appropriate garden and kitchen scraps. If done correctly, I think supplementing your chicken's diet with real food can improve their physical and mental health.
The trick is that once you start giving supplemental food that is more than a de minimus amount, you must make sure that, in the aggregate, it is nutritionally balanced. That may mean opening a can of tuna, or saving meat scraps from your kitchen, that you give once or twice a week. This is where I'm at. Depending on the season and what I have available to give them, I'd guesstimate that anywhere between 10 to 40 percent of my chickens' diet is from what they find in their yard, plus supplemental items I give.
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