Hello my name is Brittany. I am trying to start a new feeding program for my horses. I have recently went to a class on how important it is to make sure your horse is getting all the vitamins and minerals they need. I want to make sure they are getting the best I can give them. I have them both on pasture mostly. They are stalled when there is bad weather or before a show. My pasture is good and rich and there is plenty. I feed a grass hay when they are in. I have a 4 year old gelding quarter horse thats about 980lbs (15 hands). He is an easy keeper but is a hard workr. He is exercised everyday or at least 6 days a week for either an our of fast work (cow cutting, reining, barrels, poles, ect.) or a few hours of easier work (trail, rail work, ect.) so he is work pretty hard. I also have a 23 year old walking horse gelding that is about 1123lbs (15 hands). He is older so he isnt worked as hard but for his age he is getting quite a bit of exercise. He is usually worked 5-7 days a week for at least an hour of consetrated work or several hours on the trail. He use to be a 'hard keeper' He was very underweight when I first got him. Now he is quite on easy keeper. Do you have any suggestions on the correct amount of vitamins and minerals these guys will need? Any advise on what to change or add to there diets to make sure they are as healthy as I can get them?