Layer Mash Label Contents: Key Benefits Complete source of all-natural nutrition that laying ducks and chickens over 5 months old need to thrive. Certified organic by the USDA, Non-GMO Project Verified, and made in the USA at family-owned facilities. Grains are left in their whole, natural state, giving feed a shelf-life of 6 months after being milled. Wholesome recipe is enriched with vitamins, minerals and omega-3s, while also being free from corn and soy. Contains higher levels of calcium and the ideal amount of protein needed for producing strong eggshells.