If your talking about the Domestic Goat (Capra aegagrus hircus), you should say breeds not species, because the domestic goat is not a species, it is more of a domesticated subspecies of West Asian Ibex (Capra aegagrus), one of six living species of ibex, ibexes are goats that comprise the genus Capra, thus technically speaking, ibexes are goats and domestic goats are ibexes.