Pre-implantation genetic diagnosis (PGD) is a procedure used to screen embryos recovered after uterine flush to determine sex and genetic traits through DNA testing prior to implantation in the uterus.
Occipitoatlantoaxial malformation (OAAM), an inherited developmental condition primarily found in Arabian horses, causes abnormal development of the vertebrae and results in compression of the upper cervical cord with subsequent neurological damage.
Severe combined immunodeficiency (SCID), an inherited condition primarily affecting Arabians, is characterized by an underdeveloped immune system that results in foals with elevated temperatures, respiratory stress, and diarrhea.
Lavender foal syndrome (LFS) is an inherited lethal coat color dilution found primarily in Arabian horses that is characterized by a dilute lavender, pale pink, or silver coat accompanied by severe neurological abnormalities.
Dominant white is a variable white spotting pattern caused by many different mutations in the KIT gene. The VGL tests for the four most common mutations known as W5, W10, W20, and W22. Homozygosity for W5, W10, or W22 is thought to be non-viable.