Semen Evaluation. Stallion AI Services performs tests on all semen collected at the centre to make sure only the best quality semen is used for AI. More indepth evaluations are also carried out on frozen semen and this service is also available for stallion owners wishing to know the quality of their stallionsâ semen.
Ultrasound is one of the screening tests that may be done in the first trimester to look for birth defects, such as Down syndrome. The first-trimester screening test uses ultrasound to measure the thickness of the skin at the back of the baby's neck.
Some CHDs can be detected pre-birth by a Level II ultrasound or by a fetal echocardiogram. After birth, congenital heart disease is often first detected when the doctor hears an abnormal heart sound or heart murmur when listening to the heart.