I had a white leghorn hen that started on till bag ran out and feathers were more than halfway in at least i think, on co op chick feed. Then was gotten by fam, as was just feeding her people pet of kinds n different things, dumo chick starter, n they suddenly got horrible greasy split feathers n cocci poops etc until free ranged and they stopped eating mainly. hen then starting to lay at four months old, giving me two to three eggs a day (he's scoff if want, as had to look up too that was possible from commercial factory stock, also known only chook to occurrences of parthenogenesis, among other odd occurrences), one super jumbo or whatever one twice or so bigger than fits in jumo carton, or a jumbo and a small, or three varying sizes usually lay two in morn n one at night or vice versa, and had on the chic feed till was gotten wrong bag and was feeding cheapest scratch grain had, recommended by store.. she free ranged around big fenced yard, and ate out of compost pile getting leftovers n kitchen scraps. never problem woth calcium except really hard to open egg shells membranes andthick whites n rich big almost red yolks. she couldn't take the cold at all though.
had OEGBs n American game breeds mainly, and dutch bantams etc bantams, on mainly crushed ol roy red cheapest bag, as no name brown bag feeds at farm market could hoof to only at time just was seemingly way to rich. all games gave me a med egg a day, in big dog pen area they left at times.
i now have Americana bantams that are no fences at all free ranged, and hardly fed in summer and slighty more through winter on and off except more on n off on really cold spurts this winter (key in all is maybe warm water in cold to keep. layin as heard???), on some layer if shells seemed not as really thick as useful, but otherwise stayed with co op chick feed natural. these kind lay all through and best in winter, med egg each every day. i switched them when ducks had babies after ducklings were two weeks old to dumor again as they have a 20% chick/duck line now at
TSC when went for something co op didn't have available at time or something, but still like last time had bad medicine smell and gave nasty smelly runny off colored poops again (not knowing this wasn't normal till now), so swtthed to purina "flock raiser". well they all got cocci bad but got mostly over but still had bad plumage and greasy breaking feathers n hard droppings etc seeming sickly some wobbly n unsteady legs i thought was due to rapid weight gain since it was a natural plant based line said great all breed feed.. so went to
TSC again and had gotten some KC ducklings, thinking nothing of much at time except maybe too rich like not known name of feeds tried that were way too rich for games had). Well the woman there warned me that dumor duckling feed was best there for them (though everyone there says co op brands best. lol), but id gotten bulk of flock raiser on deal there before so thought nothing of it.. well found out why and what she kept trying to hint at when went back to complain that the feed had kept causing now bad problems. The free range Americana banties wouldn't eat, as didn't any non penned birds, and penned birds hardly, even brooder KCs. me thinking it was all the nutrition , but was because poisoning them! well after the ducklings in brooder had been stuffing selves with shavings and barfing back up and eating more, necks twisting, legs not working n bowing, someone told me was serious vit and mineral deficiencies.. so called the store armed with vet n breeders statements, n they said wasn't their business if feed wasn't moldy or pest infested. called purina mills n went through hoops being assured this was completely news to them and never happened yet. They said were very curious to look further into matter and wanted to look further and way back into matter, and refund me for problem and loss of birds due to trouble they continued to deny fault to saying they investigated all bag tag info id kept (and still have btw..), and let me know. well nothing back after while, that rep wouldn't take my calls asking about and saying about others having same and worse probs, n then found out was lawsuits paid off, n major recalls. the rep said that purina mills makes yhe lines of dumor too. so using co op cheap natural feeds, n birds are fine except slight trouble from layer calcium sourse too rich again, so mostly just feed chick feed again.,
ALWAYS READ TAGS OF FEED BAGS, N DO NOT GO BY BAG!!! WAS TOLD THIS BY MILLING COMPANIES I CALLED, AND FEED COMPANIES, AS APPARENTLY TWO VARY DIFFERENT BUSINESSES, THAT MILLERS PUT WHAT ACTUALLY IS AND FOR, WHILE COMPANIES PUT WHAT THEY WANT TO BE IN AND FOR OR SOMETHING .. purina all floxk n floxk raiser only for short term rapid weight gain at and up to butchering broiler weight at six weeks. individual private studies show severly bad results in many cases since asked around personally more and called places, even though heard great things from some online sourses, including duck thred here.