Wiktionary (0.00 / 0 votes) Rate this definition:-ance (Suffix) Added to the stem of a verb to form a noun indicating a state or condition, such as result or capacity, associated with the verb.-ance (Suffix) A process or action. Origin: Via -ance, from -antia, -entia.
The actual daily amount of water that most horses need to consume (at a minimum) to maintain body functions and remain properly hydrated is from a half gallon to a gallon per 100 pounds of body weight.
1 Fresh pasture has between 60-80% moisture and can provide a large amount of the horse's water requirements when grazing. 2  Hay and grain are very low in moisture, causing horses to drink more water.  Higher levels of protein and sodium in the diet also increase the horse's water requirement as urinary volume increases.