Pregnancy Diagnosis by Real-Time Ultrasonograpy at Different Gestational Periods in Gilts and Sows

The experiment was conducted on commercial swine farm unit in Serbia, to evaluate the effectiveness of pregnancydiagnosis with real-time ultrasonography in 87 gilts and 65 sows, performing at different periods after artificialinsemination (AI). Positive pregnancy diagnosis was establish in 89.47%, 93.38%, 96.06%, 99.18% and 99.17%gilts+sows, at 17-20d, 21-23d, 24-26d, 27-29d or 42-45d after artificial insemination (res.). According to the totalnumber of examined gilts+sows, positive diagnosis of pregnancy was establish in 89% females at 17 to 20 days, andin 79% females at 42 to 45 days after (AI). It was concluded that real-time ultrasonography is the method forsuccessful early pregnancy diagnosis in commercial farm units