well you need to go to
lions grip and study nutrition and feed recipes
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the way the things were fed was to produce healthy chickens and healthy feed
the old timey study books would have educated you and others in having healthy protein eggs
thus many people because meat was slaughtered on farms for humans then went to using the meat for chicken feed
with the anount of grains that the farmers had on hand
they then went to studying protein levels
and consequently got to todays commercial crumbles or pellets
I never was a believer in getting something for mothing
and the use of cereals instead of grains is a very expensive way to feed chickens properly
Do take somew time and study what the protein levels need to be
protein levels need to be at least 16% for layers
if the chicks are old enough to be put on grower do so
then put them on layer crumbles when they start to lay
you will need to feed oyster shell to laying hens no matter what you feed them
85% of daily calcium eaten daily by a chicken is for egg shells and if they do not get that
the egg shells makeup takes calcium out of the chickens bones
So there is no amount of trivial feed stuffs supplies laying hens with complete protein and vit and minerals as does CRUMBLES OT PELLETS