A few weeks ago dh went to get layer feed and they were all out. So he got multi flock which is pellets (we usually feed crumble) plus he got some oyster shell. A week or so later we got the layer feed but not wanting to waste the pellets, he started to alternate. So he would fill the feeder one time with multi flock pellets (30# feeder) and the next time with layer crumbles. Coincidentally we've had quite a slow-down in egg production in the past week or two. Related? In case it matters our pullets are about 9 mos old and we've never given supplemental light. Out of 11 pullets we've mostly gotten 7-9 eggs with an occasional ten-egg day. If we got 7 eggs one day it was usually 8 or 9 the next and if we happened to get only 5 or 6, there would be at least 8 but usually 9 eggs the next couple of days (and the day before). Now it's usually 5-6 eggs every day. I give a little scratch some days (maybe a cup or so for all 12 chickens) and also kitchen scraps. That has not changed ever since before they started laying.