A.S. Series 75-30
Molds develop in feed in response to the nourishment they get from the feed. They develop only in the presence of air and as the result of favorable moisture conditions, which must be above a relative water vapor pressure equivalence of 65 to 70%. They develop very slowly at near-freezing temperatures and rapidly as temperatures rise. By enzyme action, they convert the energy components of the feed (carbohydrates, fats and proteins) into their own body structure with loss to the air mainly of metabolically-generated heat, water, carbon dioxide, ammonia and of fragments of their body as spores. They may or may not produce chemicals toxic to animals, which will remain with the mold in the feed. Their overall effect is to lower the total energy content of the feed, replacing some of it with their own body structure and by-products.
Number of Pages
Department of Animal Science, Agricultural Experiment Station, South Dakota State University
Semeniuk, George and Carlson, C. W., "Moldy Feed - Good or Bad" (1975). South Dakota Poultry Field Day Proceedings and Research Reports, 1975. 5.