The Horse: Fed on Grain and Herbs
Source: TTT
1 Kings 4:28
Each one also brought to the required place their quotas of barley and straw for the chariot horses and other horses.
1 Kings 18:5
Then Ahab said to Obadiah, “Go throughout the land to every spring and every valley. Perhaps we will find grass to keep the horses and mules alive so that we will not have to destroy any livestock.”