The best time for dog B-ultrasound is 45 days after mating. At this time, you can use B-ultrasound to observe whether the dog is pregnant, the number and development of puppies.

If you want to know in advance whether your dog is pregnant or not, and how many are pregnant, you can go to the hospital for a B-ultrasound observation 45 days after mating, and you can also judge the development of the puppies! In dogs B-ultrasound can also be done before giving birth to observe the fetal position to reduce the risk of childbirth. Dogs usually give birth in about 60 days of pregnancy, and the first litter usually takes 30-60 minutes. If the birth takes too long, it is recommended to go to the hospital and listen to the doctor's advice on whether to have surgery or not. After giving birth, the female dog should not be bathed until one month or after weaning, because the dog is very weak at that time, and forced bathing may cause the dog to get sick. When breeding, remember that the female and male dogs are not too different, as this can easily lead to dystocia! Pay attention to your dog's behavior when walking your dog during estrus, and don't let stranger dogs take over.