OH, the rabbit holes one can fall into. Started doing a little digging and found a new thread on a chicken forum, Not sure about posting a link, but it has to do with raising chickens in your back yard. It seems someone did a spread sheet back in 2018 listing all the nutrient contents in different brands of feed and comparing to feed being sold today. While protein levels seem to have remained the same, other nutrients are down by as much as 0.005%. Now that might not seem like a lot, but when feeds are milled with just the bare minimum levels and those levels are .03%-.05% to start with, losing another .005% is a big deal. It makes me wonder if feeding a bowl of pinto beans might be enough to make up for that loss of 0.005% of what appears to be necessary nutrients. I also noticed that other types of feeds such as chick starter, and flock raiser had above the .03-.05% levels of the missing nutrients. Now my simple thoughts are that instead of buying pinto beans, cooking them and supplementing into the regular feed, why not just buy a bag of the chick starter or flock raiser and mix it into the regular layer feed. I'll let BillG do the math if he is inclined to do so. See just how much per lb would need to be added to make up for the missing .005%, I have already fell to far down this rabbit hole.
On another note, I made another feeder for my chickens so I could use two different kinds of feed at the same time without mixing. My problem with the mixing is the birds would flip out all the layer pellets to get to the livestock feed. They would clean up the pellets off the ground but not what I want to see. Its only been a week but I have already noticed a slow down in my already dismal egg production. One feed type is the Nutrenia layer pellets, 18% protein and the other is the bulk milled livestock feed, 15% protein. I got one egg out of 9 hens yesterday, none the day before. I see a bowl of pinto beans in my birds future and if that doesnt help I see a pot of dumplins. Maybe 2 or 3 pots.