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.
1st-trimester fetal ultrasound is done to: See how your pregnancy is going. Find out if you are pregnant with more than one fetus. Estimate the age of the fetus (gestational age). Estimate the risk of a chromosome defect, such as Down syndrome. Check for birth defects that affect the brain or spinal cord.