My weaning will take the first four months of the foals life, starting at two weeks (roughly) and ending when the foal is separated form the mare forever.
During this process the foals have more and more time apart from the mare, but in sight of her, each day, and learn to eat their own feed, be halter trained and to stand, tied up, to eat their feeds (this way I know exactly who is eating what!)
By the time they are around four and a half months and become ready to wean (depending on the foal, and the mare) they do not go back out. The mare can still see and touch them, but they cannot nurse.
The foals are in the big front round pen (much to Rabbit's disgust as this is
his round pen!) and there is grass in it, and they also get free choice hay and a good feed at least once a day.
This year I swapped the procedure round and put the mares in the round pen and let the remaining foal and mare and the weaned foals through onto an untouched paddock that adjoined the round pen and, of course, the foals went off happily to graze and never called once.
One of the mares went a little crazy at first then, when she had no answer form her foal, she settled down.
Since I do not grain feed my mares anyway, there is nothing to cut back on, I have tried that both ways and, whilst I would cut back on grain if I fed it, I do not cut back on grass, in fact if I have a free pasture I will turn the mare out on it, there is not that much in grass at this time of year and there is nothing like a bit of new grass to distract a mare!!
As weaning is a totally unnatural thing to do anyway, but absolutely essential for domestic animals, we have to find our own ways of making it as easy as possible for the mother and the baby, and this is mine.
I have done cold turkey, I would not like it myself and I do not think it is any good for the mare or the foal either, if the foal and mare are ready , psychologically, to be separated, you get a far easier weaning, and the bag i gone in a matter of days.
I have to say, though, no matter how gently you do it, the bag will always "blow".
Just keep an eye for mastitis (I draw a bit of milk from each mare into my palm the first week,) and draw off a bit of milk manually if necessary.
Once my foals have left Mama they do not go back, I tired that once.
Once was enough.