I Have A Feeding Problem

I like to keep all of my horses in good body condition. According to both vets I over fed last winter and it was the cause of loosing two foal. The only one that looked over weight was Pearl. All of the rest them looked like how I aim for them to look. Pearl is way over weight now. I cut back on hay and she has started to push thru between the electric ropes to eat grass in the yard since the lot pasture is not growing much. The other three in the same lot make no attempt to get out and still graze some and eat hay from the feeder. The hay feeder is not empty when the next feeding time comes. Pearl is very laid back and will graze with other mares foal. When not in need of nursing the foal seem to be attracted to her and she them. When I went out to feed this morning Pearl was in the back yard between the new shelter lot and where she had got out. She up came to me then started hunting the feed pail in the trailer which was behind my back. I walked over to Dollie's gate and let it stand open and went up to feed her and Prancer. Pearl followed and I gave he a small hand full of pellets to keep her away from Dollie and Prancer while they eat. After feeding I worked in the shed for a while and when I came out Pearl was standing at the fence watching me go to the house for breakfast.



I am trying to figure out what is the best way to cut back her feed and not put her by herself. She has never been alone except for when she had a foal and she was never happy by herself. The only thing comes to mind is to tie her first thing and let her loose after all the other horses with her is done eating. The fence problem I can fix with a few more tee posts with solid wire/rope insulators and a chain in her halter. Those 3/8" posts will not hold the insulators from sliding if real pressure is applied either up or down.