Estrus lasts for 6- 14 days. During this period, the vulva of the bitch is swollen and softened obviously, the amount of bleeding is reduced, the color is faded, and clear mucus will be secreted. Bitches like to approach dogs at this time. When the dog crawls over, the bitch will take the initiative to ask for physical disability and strong will to mate with the male dog.
The late estrus lasts about 10 days, in order to gradually restore the quiet temperament of the bitch and gradually subside the vulva swelling. Garbage dogs are approaching. Periodic network
The luteal phase is the longest, about 50-60 days. Whether pregnant or not, the time of luteal phase is the same.