Purina 3005330-245 Layena Pelleted Layer Chicken 10 lbs. Bag Adult Poultry Feed Features: High level of xanthophyll in the chicken feed, a coloring agent derived from marigolds, produces deep yellow egg yolks Oyster Strong System with calcium manganese and trace minerals for strong shells Enhanced with lysine and methionine to give birds nutrients they need to produce plenty of wholesome and delicious eggs; also promotes beautiful feathering High level of vitamin A in the poultry feed helps birds grow into healthy adult birds Prebiotics, probiotics and yeast support immune and digestive health Simple ingredients with no artificial by-products or fillers added, no artificial preservatives added, and no antibiotics or growth hormones added 16% protein and high calcium ration formula Ideal feed for top-producing laying hens once they reach 18 weeks of age Larger particle size than limestone so oyster shell will stay in digestive tract longer