You know, I was interested in the topic of broiler poultry, I studied this question, so far, I come to the conclusion that this makes it possible to obtain an environmentally friendly product without antibiotics, minimized, but in the absence of profit as such due to the high cost of feed and the increased consumption of these fodder. The only option is to have your own hatching eggs, you need broiler hens, then maybe you can see some kind of marginality. :)