Forage based diet for high performing horses?

Researchers have found that many horses do well on a forage only diet. Good soil and pasture management  will keep forage quality high and reduce feed costs.  No operation is too small. Grazing heights needs to be maintained at proper levels to avoid overgrazing.  A balanced mix of forage species can help keep the diet healthy too. 

Poisonous Plants

Here is a good article about poisonous plants.  I have a list of about 20 plants that are poisonous in the midwest.  This article includes discussion about hay containing poisonous plants.  That is difficult to control.  One way to avoid poisoning is to make sure you have a productive and healthy pasture.