1. Dogs are animals that come into estrus twice a year. If they are not bred during estrus, they will come into estrus again 6 months apart. The estrus periods are spring and autumn.

2. Each estrus usually lasts about 7-14 days, and a small number of dogs may reach 21 days.

3. Dogs are multi-fetal animals and have a bicornuate uterus. Each fetus can produce 3-6 fetuses, but the number of fetuses will be affected by the breed and whether the dog is multiparous.

Tips:

The best time for a female dog to mate is on the 3rd to 4th day during the estrus period (usually around 6 days). After this period, the female dog will not mate. gave in. When mating, male dogs must choose high-quality breeds of the same species. The dog's reproductive organs have two bumps at the root. After successful mating, these two bumps swell up, thus locking the female dog's organs. After that, the chain started, and it ended in about half an hour. From this day on, you plan to give birth to puppies in two months. During this period, you must take good care of the female dog and increase nutrition appropriately, but you cannot feed chicken bones, rabbit bones, etc. Pay attention to the dog's physiological hygiene. The kennel should not face the sun. Dogs are afraid of heat and high temperatures. In winter, just feed some warm water, and in summer, just feed it with cold water.