The quality of eye is not unique to Border Collies, but it is stronger and more consistent in that breed than in English Shepherds or Australian Shepherds. Both Australian Shepherds and English Shepherds work in a what is often called a loose-eyed fashion, to contrast it to the strong eye of Border Collies.
Spina bifida is a type of birth defect of an unborn baby's brain, spine, or spinal cord. Screening tests during pregnancy can detect. Spina bifida is a type of birth defect of an unborn baby's brain, spine, or spinal cord.
The alpha-fetoprotein part of the test can help detect neural tube defects, such as spina bifida. If your risk level is low, the quad screen can offer reassurance of a healthy pregnancy. If your risk level is moderate or high, you might choose to follow the quad screen with another test that's more definitive.