Purina Farm to Flock 18% Protein Layer hen food actively supports and fortifies your flock's immunity and gut health, thanks to a unique blend of antioxidants, probiotics, and beneficial plant extracts. It also gives you peace of mind by helping defend against viruses like bird flu. Every hen in your flock will enjoy this complete whole-food goodness, featuring a medley of high-protein pellets, ancient grains, seeds and veggies that'll keep your ladies happy, healthy and pecking the day away.