Which Sapi breeds come in Polos?

Club breed standards describe Polos for the Brown Swiss dan Jersey.

Sapi pattern

Polos

One color all over with no pattern or white: self in rabbits, cavies, rats and canaries; a tongue or hoof of one even color.

5 Sapi breeds list Polos. It is in a club standard for 2 breeds.

Breed	PDCA	BROWN SWISS USA
Brown Swiss	Sesuai standar (“solid brown”)	Sesuai standar (“solid Brown”)
Jersey	Sesuai standar (“with or without white markings”)	No ruling

How Polos can appear or change over an animal's life.