When do baby horses stop nursing?

Answer 1

4-6 months old

Answer2:

This depends. If the foal is weaned by humans it can be as early as 4 months, but it is best to let the foal nurse as long as possible, sometimes up to 10 months of age, which is when a mare will naturally begin to wean her own foal. In wild and feral horses sometimes foals as old as a year old can be seen attempting to nurse.

Answer 2

The mares have also been long used for their milk, which averages around 3,300 lbs per lactation period, with top mares producing around 5,950 lbs in 7 to 8 months of lactation. By that time the colt will be eating hard food.