Which 山羊 breeds come in 雙色?

Club breed standards describe 雙色 for the 暈厥山羊及波爾山羊.

山羊 pattern

雙色

Two colors in clearly separate areas: in cats and dogs usually a color with white; in koi and goldfish two colors on the body.

2 山羊 breeds list 雙色. It is in a club standard for 2 breeds.

Breed	MYOTONIC GR	ABGA
暈厥山羊	符合標準 (“All colors are acceptable, all combinations, and all patterns or markings”)	No ruling
波爾山羊傳統型	No ruling	符合標準 (“traditional (white bodied with a red head)”)