Isn’t a calf deprived of this rare colostrum when it’s collected?

A cow usually produces around 4 liters of milk (or colostrum) per yield. It is observed that a calf after birth usually consumes about one liter of the volume of milk yield. Our containers for collecting colostrum have a volume of 3 l, thereby leaving a sufficient quantity for a calf’s need. Further milk yields remain solely for the mother’s care to the benefit of her calf.