You mean foals. Colts is a term for male horses under 5 years old. As for your question, well, it depends how much you breed it. If it is a mare, much less than a stallion. If it is a gelding- none.
Brood mare
From 1953 through 1983 -- 30 years.
Only one. And even then, the chance of a mare giving birth to a colt is a mere 50% or 1:1 chance.
14 years!! 1998 to 2011
The Colts lost their 2010 and 2011 season openers to the Houston Texans.
College at Syracuse and NFL with the Indianapolis Colts.
A mare is an adult (over 4 years old) female horse.A mare is a female horse that is 3 years or older, if the horse is any younger, it is considered a filly;)Some people don't consider a female a mare until they are 4 years old, and some don't call them a mare until they are 5!
Nine - 1954 through 1962.
Colts and fillies have the same gestation period, so one won't be carried longer than the other.
There are five named maria on the Moon: Mare Tranquillitatis, Mare Serenitatis, Mare Crisium, Mare Imbrium, and Mare Nectaris.
No, they are not.