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Breed Standard:

GENERAL APPEARANCE:

The Rat Terrier was origi
nally bred for ratting and farm work. A multipurpose companion dog that is capable of hunting rodents and vermin above and below ground, and to course small game. He is a sturdy, compact, small-to-medium sized parti-colored dog giving the appearance of elegance and fitness, denoting speed, power and balance. Honorable scars or a couple of broken or missing (canines or incisors) teeth are not to be faulted. The following is a description of the ideal Rat Terrier. Variations are to be penalized to the extent of the deviation.

SIZE, PROPORTION, AND SUBSTANCE:

SIZE - There are two separate size divisions. MINIATURE – At least 10 inches, not to exceed 13 inches. STANDARD – over 13 inches, and up to and including 18 inches in height measured at the withers. Any dog six months of age or older measuring less than 10 inches, or any dog over 18 inches are to be disqualified. PROPORTION - The Rat Terrier is just slightly longer than tall. The height, measured vertically from the ground to the highest point of the withers, is slightly less than the length, measured horizontally from the point of the shoulders to the point of the buttocks. Shortness in leg is a serious fault. SUBSTANCE – Moderate bone in proportion to size. A well-balanced, hard-muscled dog with smooth lines under taut skin. This dog should not be rangy nor fine boned and toyish, and never bulky or coarse. They are shown in good, hard physical working condition.

HEAD:

The HEAD resembles a smooth, blunt wedge from the front or profile view. When seen from the front, the head widens gradually towards the base of the ears in an unbroken line and is well filled up under the eyes. The EXPRESSION is intelligent, alert and full of interest. The EYES are not large. They are obliquely set wide apart and are oval in shape. Eye color varies with coat color from darkest brown to hazel. Eye rim pigmentation corresponds with the nose color and facial markings. Grey eyes are acceptable in blue or blue-fawn dogs only, being a serious fault in all other coloration's. Any blue in the eye(s) is a disqualification EARS - Set on the top outer edge of the skull, V-shaped, with the length in proportion to the head, moderately pointed at the tip. When viewed from the side, the base of the ear is on line with the outer corner of the eye. Ears should match in shape and carriage when alert, and can be carried erect, semi-erect and tipped, or button without preference. When alert, a rose ear is a fault. Cropped ears are a disqualification. SKULL - When viewed from the front the skull is moderate in width, relatively flat on top, and rounded at the crown and sides as it widens smoothly from the corner of the eyes to the base of the ears. The occiput is not prominent. The CHEEKS are flat and well-muscled, but never bulging. The STOP is moderate but distinct. The MUZZLE is strong, just slightly shorter in length than the skull and tapers smoothly along the sides the to nose. The NOSE color corresponds with the body color and is entirely pigmented. Flesh-colored noses are considered a fault in lemon or light apricot colorations while being a serious fault in other colorations. Seasonal fading is permitted. The LIPS are clean and tight, and correspond with the nose leather or may be pink; either solid or spotted is acceptable. The lower jaw and teeth are strong and well developed with no sign of being snipey or weak. BITE – A scissor bite is preferred. A level bite is acceptable.

NECK, TOP LINE, BODY:

NECK – Length of the neck is in proportion to the head. Strong, arched along the crest and dry, the neck blends smoothly into the flat shoulders blades. TOP LINE – Smooth and blending from the back through the loin and set of the tail. BODY – The body is compact, strong and flexible with well sprung ribs. The brisket extends to the elbow. When viewed from the front, the ribs appear to be oval. The Rat Terrier, while muscled and fit, has flat muscles that blend into the body. The CHEST is moderately wide and well filled with a discernible fore chest. The underline ascends gradually with the ribs extending well back to a moderate tuck-up.

BACK:

The back is level and firm from the withers to the loin. The short loin has a slight muscular arch blending into the gently rounded croup. TAIL – The tail set is a continuation of the spine. Tails are customarily docked between the second and third joint, or can be a natural bobtail or left naturally long and tapering to the hock joint. Length is unimportant. The carriage is variable depending on attitude, carried from slightly below horizontal to almost erect, but not over the back or a ring tail.

FOREQUARTERS:

The shoulder blades are well laid back with flat muscles providing enough space between the shoulder blades to allow for free movement. The shoulder blades and the upper arms are nearly equal in length and well set back so that the elbows fall directly under the highest point of the shoulder blade. The depth of the body at the elbow is the same distance as from the elbow to the ground. The FORELEGS stand straight and parallel with the ELBOWS turning neither in nor out. The PASTERNS are slightly sloping when viewed from the side. The FEET are oval in shape. The toes turn neither in nor out, are compact, moderately arched, with thick pads and strong nails. The front dewclaws may be removed.

HINDQUARTERS:

The hindquarters are muscular but smooth and in balance with the forequarters. They should not be bulging or coarse. STIFLES are well-bent with short HOCKS that are parallel and perpendicular to the ground. The hind FEET although slightly smaller are similar to the front feet. Rear dewclaws are removed.

COAT:

Short, close lying, smooth and shiny coat. Texture varies; a very slight ruff or wave along the back is allowed, but undesirable. Any suggestion of kink or curl is cause for disqualification. WHISKERS must not be removed. Absence of coat (total genetic hairlessness) is a disqualification.

COLOR:

Any variation of pied patterning is acceptable. Pied is described as comparatively large patches of one or more colors in combination with white. Except for the “solid white” extreme piebald dog with only mottled/spotted skin; Rat Terriers are never a solid ground color without white markings, or bi-colored without one color being white. Acceptable colors with or without “tan points”, include the predominate Black; or Chocolate, Red, Apricot, Blue, Fawn, Tan, Lemon or White. Intense, dark shades of color with clearly defined and delineated coloration is preferred. White on the body is preferred to be between 10% and 90%, but all Patterns: spotted, patched or splashed with white in conjunction with (or without) any combination of white on the face, head or ears are equally acceptable without prejudice. “Tan Points” are common and vary in shades of cream to rust. Badger markings are acceptable. Speckling, mottling and ticking is common, but heavy ticking is undesirable. Sabling is permitted in the coat or as shading on the head or penciling on the toes. A “black mask/black muzzle”, on a dog not having black as a coloration is to be seriously faulted. A “few white hairs” do not constitute an acceptable marking. A minimum white marking consists of a patch or strip of white with underlying white/pink skin on the fore chest or body that exceeds one inch. Less than one inch of white at its widest dimension is a disqualification. Brindle or Merle color patterns are disqualifications.

GAIT:

A ground-covering efficient trot with good reach and drive suggesting agility, speed and power. The legs are parallel at a trot, but as speed increases, the legs converge toward a center line. There should be no elbowing out, weaving or rolling action while in motion.

TEMPERAMENT:

Keenly observant, devoted, full of energy, yet easily trained and obedient to command. The Rat Terrier is a non-sparring breed and generally friendly with other dogs, but may be reserved with strangers. Submissiveness is not a fault. Overt aggression and excessive shyness should be penalized.

DISQUALIFICATIONS:

Any dog over six months of age measuring less than 10 inches, or over 18 inches. Any blue color in the eye. Cropped Ears. An absence of coat (genetic hairlessness); any suggestion of kink or curl, or coat type other than described is a disqualification. Solid colorations (other than white). Bi colors without white, or dogs with a patch or strip of white measuring less than one inch at its widest dimension. Brindle or Merle color patterns.

Rat Terrier Club Of America 2010