Is it true that the sugar content of grass is higher when there is frost on the grass? Is there a time that a horse that prones to be overweight should be kept off grass?
The answer to both your questions is YES.
There are other issues as well.
Please see the articles “Mineral Wise, Salt Poor” (page 21) and “Perfect Pastures” (page 12) in the magazine at http://www.DrDanMag.com (PDF file)
Check out these helpful links:
What To Feed Your Horse?
Dr. Dan’s Library:
The Natural Vet On The Net:
The Natural Horse Vet Magazine: