
Beyond Day 1: A Practical Guide to Colostrum and Transition Feeding
Mother Nature designed transition milk to support the calf during a highly vulnerable period after birth. Transition milk is still high in fat, natural antimicrobials, and bioactives, less concentrated than colostrum but more than conventional milk, and provides the calf with the energy, protection, and physiological signals that encourage cells to grow and differentiate, key to calf early life development. However, in most modern dairy systems, this natural phase is largely lost due to early separation of the calf from the dam and the lack of a practical way to consistently manage transition milk. As a result, an important nutritional and functional window is missing, leaving calves more susceptible and less likely to reach their genetic potential. Researchers and industry understand the value of this phase and aim to recreate it in practice by using colostrum powder to produce a low-labor intensive, consistent, and safe transition milk. In this way, producers can mimic the natural process in a standardized fashion, extending the benefits of colostrum beyond day 1 and supporting the calf during this critical window.




