I have a friend that has this paint mare that has been a TOTAL pain in the butt to get weight on. Now she is not dead skinny just not as fat as my friend would like her. This mare has one big strike against her and that is she has the longest back that I have ever seen and that really make her look a lot leaner than she really is.
Here is what she is fed twice daily
2 (3 quart scoops) *sorry can't weigh my food as my scale broke and got to wait til payday for another one*
Southern states Triple 10 feed --- 10% protein , 10% fat, 10%fiber ( I also mix in a little oats cause if you don't she wont eat it)
She gets plenty of hay twice a day. This mare can't get alfalfa of any kind from what I have been told it gives her the runs really bad.