I moved a cow to another pasture and within 10 minutes of her being in pasture the bull mounted her multiple times, before this I seen the bull in the other pasture mount her once then again a few weeks later and havent seen him on her since so I assumed she was bred and that was about 5 months ago and now I put her in a new pasture and the bull and other cows is riding her so is it possible for cows to heat cycle after being bred