I have 17 layers that are about 12 weeks old, when should I start offering these birds calcium supplements ?
I would and I do at that age. I sift oyster shell out of the bad with a strainer I bought that is used in the kitchen. I put the fines in a salt shaker and sprinkle it on their food. I am of course more concerned with the hens than the roos but they can all us it. After they get a bit older I use the next size up and just but in one of those round plastic feeders that you mount on a bottle without using the bottle. i just let them pick at it as they choose. I do the same thing with grit. In total I sift it into about 4 different sizes depending on the bird. I use the finest of the fine oyster shell also like salt starting at about 3 weeks. Seems to work for me and I very seldom if any have a sick bird. Good Luck!!!
I keep all the egg shells, let them dry out, crush them up, and feed it with the scratch. They think its a treat and its free!
