Normal nursing behaviour is very important and a great indicator of your foal’s general health. Your foal should be nursing soon after birth. Usually this happens within two hours but if it does not drink within the first four hours, call your veterinarian.
Camden Equine Centre
From the Blog
Within the uterus of a pregnant mare the foal lies within two membranes: the amnion (inner membrane) and the allantois (outer membrane). It is through the allantois that oxygen, nutrients and waste products are exchanged between maternal and fetal blood.