What will happen if you fed your chickens a few apple cores with seeds?
My chickens love apple cores with seeds. In fact, my fenced in
chicken run is also my orchard. To reduce the number of insects
attracted to felled fruit, and to clean up the fruit that does
fall, I put my chickens to work. They will eat any and all the
fruit and it benefits them nutritionally. If you are concerned
about arsenic in apple seeds, consider that there is arsenic
naturally in the ground, and because of that there is arsenic in
the plants raised in that soil.