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.
The only ways to find out the sex of your baby during pregnancy are ultrasound scans showing your baby's genital area, amniocentesis or chorionic villus sampling (CVS). You will have an ultrasound scan at some stage in your pregnancy, but amniocentesis and CVS will only be offered if you have a medical need for them. Ultrasound scans are a fairly accurate way of determining your baby's sex from about 18 weeks of pregnancy. Bear in mind that if your baby is facing the wrong way or crossing her legs during the scan, it may obscure the genital area from view.