The best approach to separate does from bucks is to develop a secure buck pasture. The buck pasture should be far enough from the breeding doe herd, otherwise scent emitted by glands located behind the base of the bucks' horns will induce estrous in does. Does will come into heat approximately 7 to 10 days after the introduction of the buck. During the breeding season, goats come into heat or estrus approximately every 18 to 22 days. Does in heat become vocal and some bleat very loudly as if in pain.
Constant tail wagging from side to side is another sign of heat.
In addition, the vulva will appear slightly swollen and reddened and the area around the tail may look wet and dirty because of vaginal discharge. Other signs of heat include decreased appetite and an increased frequency of urination. Does in heat also are easily identified if a mature and smelly buck is nearby. They will pace restlessly along their enclosure for a way to get to the buck or stand close to the fence. Finally, a doe in heat may mount another doe as if she were a buck or let another doe mount her.