How many days does the Border Collie go into estrus for breeding? The best breeding time for a Border Collie is on the third day after the female dog goes into estrus. At this time, the female dog is in the ovulation period and has a higher chance of pregnancy; or it can be determined based on the Border Collie's estrus performance. Breeding time, for example, when you see a female dog actively approaching a male dog and willing to accept the male dog climbing on her, you can breed her.

If you want to breed a Border Collie as early as possible, you can choose to breed it when it is 14 or 15 months old, when the Border Collie's body is basically fully developed. Adult Border Collies will go into estrus once each year in spring and autumn, that is, from March to May and September to November. During this period, Border Collies can be bred.

The specific breeding time can be determined based on the estrus performance of the Border Collie. When the female Border Collie is seen frequently approaching the male dog, the labia are swollen, and the vaginal secretions change from red to yellow, the female dog actively approaches the male dog. When you are willing to accept a male dog climbing, you can start arranging breeding matters.

The best time for mating is the third day after the female dog is in estrus. At this time, the female dog is ovulating and the chance of pregnancy is relatively high. During the breeding period, you should pay attention to choosing a quiet and clean place, follow up on the nutritional supplement of the Border Collie, pay attention to environmental hygiene and the dog's own hygiene, and create good breeding conditions for the Border Collie.