Bunnylady
Herd Master
Everyone has given such good advice. Just another thought....
My aunt had a horse that lived to be 38 years old. I remember him from foal to helping break him and I was there when he passed away. The only time my aunt ever had a problem with him getting too thin was after they changed him over to a senior formulated feed. They had bought some land and were having a house built so they had him boarded. The people there said that had seen that often when feed was switched to some senior formulas so they put him back on his original feed and...well, he lived to be 38! (Sorry but I do not know what feed they were using.)
I haven't seen a lot of senior feeds, but at least one that I know of is the typical "sweet feed" - pellets and whole grains and molasses. For the life of me, I have never been able to figure out what that company can be thinking, calling that a senior feed. You don't have to see grains sprouting in the manure piles in the pasture too many times to figure out that a lot of grain passes through intact, even if the horse is young and has good teeth, so why give it to an animal whose dentition may be compromised? And then there's the sugar content. . . If that's the kind of senior feed the old fella was getting, I'm not surprised he was losing weight.