Key Features:
The microbiome is influenced from the very beginning and prebiotics in colostrum help kickstart the calf’s digestive and immune system, followed by transition milk. The gut is also very porous at birth, which allow colostrum antibodies to be absorbed whole but is also a site for bad bugs to enter the calf’s system. It takes several days for the gut to become much less porous, leaving the calf highly vulnerable to pathogens for quite some time.
Feeding transition milk (milk produced by the cow from day 2-4) is key to encouraging the production of acid and enzymes in the calf and the full closure of the gut wall.