* [[Failure of Passive Trnasfer|'''Failure of passive transfer''']] - due to failure of the foal to suckle adequate quantities of colostrum, or low volume/poor quality colostrum produced by the dam.
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* [[Failure of Passive Transfer|'''Failure of passive transfer''']] - due to failure of the foal to suckle adequate quantities of colostrum, or low volume/poor quality colostrum produced by the dam.