The effect of incomplete colostrum milking on its content and on trypsin inhibitor level

Analyses on variability of trypsine inhibitor content in cow colostrum and its composition during first 5 milkings after parturition, in dependence with method of milking were performed. Cows were distributed into 3 groups: I - complete colostrum milking in successive milkings after parturition - control (18 cows); II - leaving approx. 30% of colostrum (more complete milking) in first 5 milkings after parturition (18 cows); III - leaving approx. 60% of colostrum (less complete milking) in first 5 milkings after parturition (18 cows).