Failure of passive transfer
When your mare is having a foal, it can be a very stressful time for you and the mare. It is important that you know what to expect so that you can pick up any problems early on. Foals can become sick very quickly so it important to watch them closely and consult your vet if you are at all concerned. If your foal fails to stand or suck within 2 hours of birth this is a serious problem, and you should call your vet immediately as this may result in failure of passive transfer.