Studies on milk yield and milk composition of Korean cows. IV. Fractionation of whey protein in colostrum and normal milk from Korean heifers and cows by Sephadex gel filtration
Lim, J.W.; Yu, J.H.
Korean Journal of Animal Sciences 26(3): 282-287
Whey proteins from colostrum and milk smples taken from cows and 1st calf heifers gave 4 peaks, detectable at 280 nm, on gel filtration on Sephadex G-100 using 0.02 M phosphate buffer (pH 7.0). The mean proportions of the 4 fractions in colostrum taken on the 1st day after calving were 90.1, 6.8, 2.3 and 0.8% for heifers and 78.1, 11.5, 7.7 and 2.7% for cows.