I've been feeding them Nature's Best from TSC starter and now they're laying and won't eat the layer version. The starter is light tan in color and the layer is green. They just hate it. I have four different flocks and only one flock will slightly tolerate it. There's nothing wrong with the feed. I've tried multiple different bags. I have one hen who has developed an impaction from stuffing up on grass bc she refuses to eat it. She just started laying again and I don't have any other feed out there that I can use. I really feel strongly about organic as their feed source. Is there any way to still feed her the starter and supplement the calcium? She's got access to oyster shells but won't eat them. She really is a stubborn gal. I would rather not go with GMO feed but at the same time I don't want her to have egg issues. Thanks for any help.