My vet diagnosed it as worms (specific to our area) infesting her intestinal wall (the one time we forget deworming, this happens! ). We made the following changes to her diet:
Grain: 10lbs daily
Forage: 24/7 on 50 acres of pasture and a hay bale whenever she wants it. She is on a regular deworming schedule created by our vet, specific to our area.
Results after a few months: none. Still skinny!
Had blood tested by vet - nothing wrong except mineral and vitamin levels were low. He also said her immune system was low.
Changes to diet: Platinum Performance Equine Wellness formula (1 scoop twice daily)
Results after 2 months: Coat looks AMAZING! Eyes are bright, very alert, stools are solid, has an appetite, but no weight gain!
Vet came back, gave her steroids to help her gain weight (not sure the name, but damages ovaries for one cycle, has high levels of testosterone, made her act like a stallion!).
Changes: increased grain to 12lbs daily, muscle building exercise 3x weekly (hill work, transitions, etc). I feel that I am a qualified rider to build muscle. For proof, see pics of my mare Venus.
Results after 8 weeks: No weight gain, maybe some muscle. Very hard to tell with her condition.
I tried putting vegetable oil on her grain, but she absolutely refuses to eat it and vet doesn't really recommend it. I also dropped her grain down to 10lbs again because she wouldn't finish all of her grain when she was getting 12lbs. Now, she eats it all up!
My mom can't afford to keep paying all of those vet bills with no results, so I've decided to try it on my own. My next idea is to try Platinum Performance Equine Healthy Weight. Here's the link: Equine Healthy Weight | PlatinumPerformance
Please help! I have no idea what to do. Here is a picture of her to prove how healthy and alert she is! Just took this photo YESTERDAY!
EDIT: Sorry about the pic, tried rotating it. The file size is HUGE b/c of my camera.