Lallemand Animal Nutrition ProTernative milk is a specialized formulation of the active dry yeast probiotic Saccharomyces cerevisiae boulardii CNCM I-1079, which helps reduce the negative impact of stress in pre-weaned calves. ProTernative milk is designed to achieve the highest level of dispersion in milk or milk replacer fed to neonatal calves. S. c. boulardii CNCM I-1079 has been shown to favor beneficial microbes in the lower gastrointestinal tract in cattle and other animals. During periods of stress, this active dry yeast has been shown to help cattle lower levels of morbidity, mortality and improve average daily gain.

Each pouch contains 600 standard feedings. A standard, 5-gram feeding supplies 10 billion colony-forming units (CFU) of S. c. boulardii CNCM I-1079 per head per day. When additional stressors are present, a 10-gram feeding rate that supplies 20 billion CFU per head per day is recommended.