Rimworld Feeding Animals In Pens - crm.catalystglobal.com
Webanimal flaps function the same as regular doors, except they allow pen animals to enter and leave. You could also use a regular door in addition to those. Webtry checking food settings in a pen marker and allow all animals to eat everything, maybe there are some restrictions, also animals that are not kept in pens won't eat food in pen,.
Webi recommend you plant dandelions in the pens of animals. Not only does it look aesthetically quite pleasing, dandelions are really good at providing raw plant food.