Nurture your backyard flock from day one through week 18 with Purina Start And Grow Medicated Chick Feed Crumbles, an expertly formulated complete starter-grower poultry nutrition. Designed specifically for replacement laying hens, this feed delivers an optimal balance of thirty-eight essential nutrients to support steady, healthy development without requiring extra supplements. It features eighteen percent protein enhanced with lysine and methionine to promote robust muscle and skeletal growth. To protect your young birds during their vulnerable developmental stages, the feed includes amprolium, a safe, non-antibiotic medication that aids in the prevention of coccidiosis in unvaccinated flocks. Digestive and immune health are actively supported through added prebiotics and probiotics, while natural marigold extract ensures your growing chicks develop brightly colored beaks and vibrant plumage. This twenty-five pound bag provides a reliable, high-quality nutritional foundation for your developing layers right up until they start laying their first eggs.