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.
These screening tests help your doctor find out the chance that your baby has certain birth defects, such as Down syndrome or trisomy 18. These tests can't show for sure that your baby has a birth defect. You would need a diagnostic test, such as a chorionic villus sampling, to find out if there is a problem. The first-trimester screening combines the results of two tests. Nuchal translucency test .