Join Date: Feb 2012
Location: Alberta, Canada
after talking to many, many good horse people that have raised hundreds of foals, essentially have your mare on the same balanced diet that any horse should be on, right up until the last three months, when they need an increase in calories and nutrients. Up until it gets awkward/uncomfortable they should get as much exercise as possible, and being to over or underweight is obviously bad.
for my horses its a bit of beet pulp with flax and a small amount of oats(my bo likes to bring them all in for a treat), a really good quality, relatively dust and mold free mixed hay, mostly grass, with a bit of alfalfa, and free choice mineral tubs and salt licks. She is currently 4.5 months away(ish) and is at a really good weight, but she's getting big, and the footing is icy, so no riding for her. Mid February she'll start getting a mare and foal ration, with added vitamins, minerals and extra calories, in addition to what she's getting already.