Which Potkan domácí breeds come in Bareback?

Club breed standards describe Bareback for the Potkan domácí.

Potkan domácí pattern

Bareback

Rat marking: a colored hood over the head, neck and shoulders with no stripe down the back, the rest white (AFRMA Bareback, NFRS provisional).

1 Potkan domácí breed lists Bareback. It is in a club standard for 1 breed.

Breed	AFRMA	NFRS
Potkan domácí	Podle standardu (“Bareback”)	Alternativní (“Bareback (provisional)”)