How often should a female Border Collie be mated?

To improve a female Border Collie’s mating success, mate her again 1-2 days after the first. The best mating is days 9-11 of heat, with the highest success; if planning a litter, arrange mating with a suitable male on those days, let them spend time together first to become familiar, and avoid disturbance during mating to raise the success rate.