I have a 5-month-old heifer calf and a year old bull as well as a 2-year-old heifer. I will be breeding the bull and the 2-year-old heifer. Right now I have the three of them together in one pasture. Should I separate the heifer calf from the bull? I should also point out that the bull and 2 yr old are Dexters and the calf is an Angus/Hereford. My vet also advised that I may want to separate the 2 yr old heifer from the bull for a while so the bull and heifer will want to be together. Your expert advice is appreciated and as I am sure you can tell – I am a new to raising cows. Thank You.