I have an old sow that I would like to get bred one last time. The problem is that about a week before she comes in heat she has a large discharge that is pure white, and now she won't settle. Her cycles are always 21 days, and 21 days ago was the first time I bred her in a couple of months hoping it would go away, but I can see she is repeating again. When I breed her the discharge is clear. Any Idea or tricks I could use to get her bred would be greatly appreciated. Thankyou for any help.