Lately sweetie my 22 month old filly has started eating bark off a tree. I wonder if she is missing a vitamin, i've changed her feed recently due to my supplier. She is on a 10% sweet feed, gets 4.5 lbs day in 2 feedings. She has pleanty of hay, when i saw her doing this today, she had a pile of fresh hay rihgt next to her. I also feed her a basic multivitamin. She's very healthy looking, probally too healthy. I looked at her teeth, no sign of needing floated, eats feed okay. She has a salt lick in her run in shed. Is she just bored? or do you think she might need a supplement?
There can be a number of reasons horses eat bark. I had one gelding that ate bark and just about died. It wasn't until after the vet had come out to examine him that we figured out that he must have choked on some bark. The vet thought he was going to die but he made it!
I think it is just a boredom thing, they get plenty of hay, roughage. I give it to them free choice. Now the weather has gotten colder and sweetie has snow again to play in and i also bought her a big horse ball that she tosses around in the pasture. I have not seen her eating the bark for a few days.