Gonzalo Busso Foster, D. M., Smith, G. W., Sanner, T. R., & Busso, G. V. (2006). Serum IgG and total protein concentrations in dairy calves fed two colostrum replacement products. Journal of the American Veterinary Medical Association, 229(8), 1282–1285. https://doi.org/10.2460/javma.229.8.1282