Follicles can be detected 2-3 days after estrus, and ovulation occurs when follicles stop growing. No pregnancy uterus images were detected 23 days before pregnancy. The date of first detection of pregnancy uterus, fetus, fetal movement, body cavity and fetal heart was on the 24th, 30th, 40th and 48th day of pregnancy. 24-30 days of pregnancy, you can calculate the number of pregnant embryo. B-type instrument for tomography scan of ovary and uterus can correctly diagnose ovarian and uterine cysts, uterine hemorrhage, uterine effusion, pyometra, cystic endometrial hyperplasia, endometritis, uterine tumor and other diseases, the accurate rate is better than the X-CT scan.
2.Female Cat Pregnancy Diagnosis
The female cat has a gestation period of 58 days (55-60 days) and the diagnosis method is basically the same as that of the dog. Exploring with a type B instrument, the fetus can be detected about 19 days after breeding, three weeks earlier than the palpation of the abdominal wall, and three to four weeks earlier than the X-CT scan. The gestational age of the cat is calculated as: GA=(25×HD)+3= (11×BD)+21.