Visit the links on the left to view the standards for all NFRS rat varieties, along with images where available. Full genetic formulae are not given, only the salient loci. Where unrecognised loci are given this has been indicated with an asterisk.
To view our Standards of Excellence, see the documents below:
The Rat shall be of good size, does long and racy type, bucks being of a bigger build, arched over the loin, firm fleshed with clean, long head, but not too pointed at the nose. The eyes shall be round, bold, clean and of good size. The ears shall be of good size, well formed and widely spaced. The tail shall be cylindrical and as long as the body, thick at the base, tapering to a fine point. The ears, feet and tail shall be covered with fine hair. The coat shall be smooth and glossy (except for the Rex type). Bucks are larger than does and have a harsher coat.
Serious Faults: Poor condition or health, bare areas, scaliness of ears and or kinked or short tail.
Note: Castrated bucks cannot be shown in varieties classes but can be shown in pet classes.