I am having the same problem with my chickens except for one. All but one have naked butts. I give lots of extra stuff for protein, but can I give them it every day and how much? If I gave a can or two of cat food a day, kibble , fish , tuna what ever a day would that be enough? Can you feed the chick food in the winter to your layers as long as you make sure they have oyster shell all the time? I just am at my wits end with this. I just am not sure if (because the one does not have any thing missing) it is a bully thing or a protein thing. I have tried the blue kote and the plucker stuff with no results. So any help would be appreciated as far as how much and how often can I give something.