* Roan horses: These are horses with a specific coat pattern, characterized by a mixture of white hairs with other colors. The number of roan horses varies greatly depending on breed, location, and other factors.
* Roan cattle: Similar to roan horses, these are cattle with a roan coat pattern.
* Roan goats: This is a breed of goat with a roan coat.
To answer your question accurately, I need to know what kind of "roan" you are referring to. Please clarify your question.