PurinaÂ® Calf StartenaÂ® Feed delivers the right balance of protein and energy for maximum growth through the first two months. A complete ration fortified with vitamins & minerals for feeding calves from 4 days through 2 months of age. Up to 15% faster growth rate in calves in the first 60 days, compared to conventional starters. Helps improve feed efficiency up to 12% – cost per pound of gain goes down. Fortified with vitamins & minerals – helps promote growth & development.