On what day to let the dog near the male? - briefly
The optimal day to introduce a female dog to a male for breeding is typically between the 10th and 14th day of her heat cycle, when she is most fertile.
On what day to let the dog near the male? - in detail
Determining the optimal day to introduce a female dog to a male for breeding requires careful consideration of the female’s reproductive cycle, which consists of four stages: proestrus, estrus, diestrus, and anestrus. The most critical period for successful mating is during estrus, commonly referred to as the "heat" phase, when the female is fertile and receptive to the male. Proestrus precedes estrus and is characterized by physical signs such as swelling of the vulva and bloody discharge, but the female is not yet ready to mate. Estrus typically begins around the 9th to 14th day after the onset of proestrus, though this can vary depending on the individual dog. During estrus, the discharge lightens in color, and the female displays behavioral changes, such as flagging her tail to the side when approached by a male. This is the ideal time to introduce the dogs, as ovulation usually occurs within the first few days of estrus, and the eggs remain viable for fertilization for about 48 to 72 hours. To maximize the chances of successful breeding, it is recommended to allow multiple matings over a 2 to 3-day period during this fertile window. Monitoring the female’s behavior and physical signs, as well as consulting with a veterinarian for hormonal testing or vaginal cytology, can provide more precise timing and ensure optimal conditions for conception. Proper planning and understanding of the female’s cycle are essential to achieve a successful breeding outcome.