Colostrum isn't just about antibodies, it's also carrying oligosaccharides, compounds increasingly linked to gut health and immune function in newborns. This study measured how oligosaccharide levels shift across colostrum, transition milk, and mature milk in the first week of lactation, comparing cows on their first lactation against more experienced cows. For producers thinking about colostrum quality beyond just IgG, this adds another layer to what "good colostrum" actually means nutritionally.
"Oligosaccharide concentrations in colostrum, transition milk, and mature milk of primi- and multiparous Holstein cows during the first week of lactation" — A.J. Fischer-Tlustos, K. Hertogs, J.K. van Niekerk, M. Nagorske, D.M. Haines, M.A. Steele. J Dairy Sci. 2020 Apr;103(4):3683-3695.