Breed Standard
Description
2019 Revised ABRA - Description: This breed standard is meant to provide breeders that register their dogs ABRA and judges at ABRA sanctioned conformation shows with a written guide that describes the unique characteristics of the American Bulldog, the guide should be used by the breeder when selecting brood stock and by the judges when selecting dogs in an ABRA conformation show. The American Bulldog is an athletic, temperamentally sound medium to large sized dog that possesses great strength, agility and confidence. The expression should reflect intelligence and alertness. The sturdy and powerful yet compact frame is characteristically stockier and heavier boned in the males and more refined in the females. Some aloofness with strangers and assertiveness towards other dogs is accepted. However, an American Bulldog should not be excessively timid, shy or aggressive towards man and preferably not overly aggressive with other dogs. Due to its distinctive physical and mental characteristics along with its natural desire to be the total companion and working dog, an American Bulldog should never be confused with uniquely different breeds such as the American Staffordshire Terrier or the American Pit Bull Terrier. American Bulldogs are extremely attached and affectionate with their human families.
Color
All white, pied, and bodysuits with more than 25% white are acceptable. Patches can be brindle, reverse brindle, black, blue, red, brown, chocolate, fawn, blue fawn & tan. Dogs with less than 25% white, dogs that are primarily solid black, blue or chocolate, (black, blue & chocolate patches are allowed but a dog that could be described as being primarily black, blue or chocolate are disqualified), black and tan or trindle pattern markings, fawn with a black mask, and/or any degree of merle are all disqualifiers.
Merle is a dilution of overall body color (black or red) with splotches of darker color giving the effect of "merling" or "marbling" not to be confused with Brindle that gives the effect of "striping".
Size
Males should range from 23 to 25 inches at the withers and weigh between 90 and 110 pounds. Females should range from 22 to 24 inches at the withers and weigh between 70 and 90 pounds. Weight should be proportional to height and body type. A dog should be well conditioned and not overweight or underweight.
Standard: A leaner and more athletic dog in appearance.
Classic: A larger and more powerful dog in appearance.
Coat
Short, less than one inch in length varying from soft to stiff. Long, feathering, or fuzzy coats are a DQ.
Head
The head should be relatively large and broad in proportion to the size and overall structure of the dog. It should be flat on top giving a squared appearance. There is a defined furrow between the eyes with a distinct, deep stop. The head is well-muscled throughout with prominent cheeks. The forehead is wider than it is high. An excessively narrow head is major fault in both types.
Standard: Generally box shaped to wedge in appearance with a slightly shallower stop and less wrinkles.
Classic: Generally box shaped to round in appearance with a more definitive stop and heavier wrinkles.
Eyes
The eyes should be round or almond shape, medium sized, and wide set. The haw should not be visible. Dark brown is the preferred color. Light brown or hazel are accepted. Black eye rim pigment preferred. Brown pigment is acceptable, lack of pigment is a minor fault. Blue, glass, cracked, crossed, wall eyed and/or nonsymmetrical eyes are a DQ.
Ears
The ears should be medium in size and may be either drop, or rose, with no preference.
Drop ears: The ears are set high, level with the upper line of the skull, accentuating the skull's width. At the base, the ear is just slightly raised in front and then hangs along the cheek. The tip is slightly rounded. When pulled toward the eye, the ear should not extend past the outside corner of the eye.
Rose ears: These have small relatively thin leathers which fold backwards, so you can see the inside of the ear or the burr, the rose-shaped leathers are "set on" high but at the back of the head.
Deaf dogs (unilateral or bilateral), cropped ears & bat ears are a DQ.
Muzzle
The muzzle should be relatively broad and square. The large jaws are well-muscled, displaying great strength. Lips are full but not pendulous. Black pigment lining lips preferred, brown is acceptable. An excessively narrow muzzle is a major fault in both types.
Standard: Muzzle should be 30% to 40% of the overall length of head.
Classic: Muzzle should be 25% to 35% of the overall length of head.
Any dog that exhibits difficulty breathing while in the ring is a DQ.
Teeth
The teeth should number 42 but it is accepted to have missing premolars and the teeth should be large in size. In the upper jaw there are 20 teeth: 6 upper incisors, 2 canines, 8 premolars, 4 molars. In the lower jaw there are 22 teeth: 6 lower incisors. Sometimes the two most centrally placed incisors are called the lower centrals and maybe smaller than the others. 2 canines, 8 premolars, 6 molars. Working dogs should not be penalized for broken teeth. Should medical removal of teeth be needed, documentation and verification by a veterinarian is requested.
Bite
Standard: Reverse scissors is preferred. A reverse scissors bite is an undershot mouth where there is no gap between the teeth of the upper and lower jaws. However, the top surface of the teeth in the upper jaw must actually touch the under surface of the teeth in the lower jaw for it to be called a reverse scissors bite.
Classic: Undershot 1/8 to 1/2 inch preferred. More than 1/2 inch is a serious fault. In an undershot mouth, the lower jaw is perceptibly longer than the upper jaw.
Both types: Teeth showing when the mouth is closed is a DQ. Overbites (parrot mouth) are a DQ. Wry Jaw is a DQ.
Nose
The nose is large with wide open nostrils. Black is the preferred color. A brown nose is acceptable. Lack of pigment is a minor fault but pinched nostrils/nares are a serious fault. Nares that are so pinched that you can hear the intake of each breath is a DQ. A completely pink/dudley nose is a DQ.
Neck
The neck should be very muscular and medium in length, as broad as the head at its widest point where it meets the shoulder and taper slightly toward the head. The neck should taper from shoulder to head and be slightly arched. A slight dewlap is acceptable.
Shoulders
The shoulders should be well-muscled with good definition and the wide sloping blades set so elbows are not angled out. Blades (scapula) are well laid back forming a 90 degree angle with the upper arm (humerus).
Body / Chest / Back
The body should be compact and moderately short while powerful and athletic in appearance. Well balanced. There should be a good spring of ribs with the loin moderately tucked. The body should not be excessively long.
Chest: The chest should be deep and moderately wide giving the appearance of power and athletic ability. The front, overall, should be straight and well balanced. The chest should not be narrow or excessively wide nor should the elbows be angled out or pulled in. The chest should extend to the elbows.
Back: The back should be broad and moderately short in length showing great strength. Slight roach over loins. The back should not be narrow or swayed.
Standard: More level topline is preferred.
Classic: Appearance of being slightly (very slight) higher in the rear is preferred.
Legs
The legs should be strong and straight with moderate to heavy bone. Fine bones is a major fault. Well-muscled front and back. The rear legs should be moderately angulated and parallel. The thighs should be thick with well developed muscle. There should not be an excess of or lack of angulation in the rear legs. Excessively bow-legged, fiddle fronted or cow hocked is a major fault.
Hindquarters
The hindquarters should be thick with well-defined muscles. Not as wide as shoulders, but well-balanced. The hips and thighs should not be narrow or lacking in muscle definition and density.
Tail
The tail is set low, thick at base and tapering to a point. The tail should reach the hocks in a relaxed position. Docked tails, screw tails and tails that end in a complete circle are a DQ. Kinked tails are a structural fault, although a kinked tail does not hinder the dog's ability to work it should be heavily faulted.
Feet
The feet should be upright, not flat or hare footed, of moderate size with toes well arched and close together. The toes should not be splayed. Pasterns should be upright. Toe nails should be short. Long nails impede movement.
Gait
The American Bulldog should move with speed, agility, and power with a definite spring to the step. All legs move parallel to direction of travel, with front legs clearly reaching and the rear legs propelling the dog forward. The legs should not travel excessively wide. The topline should remain level and the head and tail should be up, showing confidence. Front legs and/or rear legs crossing is a major fault but should not be confused with the feet moving toward the centerline when speed increases. Ideally the dog should single-track but not cross. The cross must be definite.
Faults: Topline bouncing up and down, legs moving too close or touching, pacing, paddling, side winding. Poor movement should be penalized to the degree to which it reduces the dog's ability to perform the tasks it was bred to do. A lame or limping dog is a DQ.
Disqualifications
- Dogs that are spayed or neutered.
- Female dogs in heat.
- Males that do not have 2 testicles.
- Dogs that display behaviour that the judge deems to be excessively shy or aggressive.
- Dogs with less than 25% white, primarily solid black, blue or chocolate.
- Black and tan or trindle pattern markings, fawn with a black mask, and/or any degree of merle.
- Dogs with long, feathering, or fuzzy coats.
- Dogs that are blind.
- Eyes that are blue, glass, cracked, crossed, wall eyed and/or not symmetrical.
- Deaf dogs (unilateral or bilateral), cropped ears & bat ears.
- Dogs that the judge deems to be having difficulty breathing while in the ring.
- Teeth showing when the mouth is closed.
- Overbites (parrot mouth) and wry jaw.
- A completely pink/dudley nose.
- Docked tails, screw tails and tails that end in a complete circle.
- A lame or limping dog.
Registry Comparison
| Section | ABRA | NKC | UKC | ABA |
|---|---|---|---|---|
| Description | The American Bulldog is an athletic, temperamentally sound medium to large sized dog that possesses great strength, agility and confidence. The expression should reflect intelligence and alertness. The sturdy and powerful yet compact frame is characteristically stockier and heavier boned in the males and more refined in the females. Some aloofness with strangers and assertiveness towards other dogs is accepted. However, an American Bulldog should not be excessively timid, shy or aggressive towards man and preferably not overly aggressive with other dogs. | The American Bulldog is a well balanced, short-coated, muscular and athletic animal. American Bulldogs display great strength, endurance, and agility. Males are characteristically larger, heavier boned and more masculine than the females. | A powerful, athletic short-coated dog, strongly muscled, and well boned. The body is just slightly longer than tall. The head is large and broad, with a wide muzzle. Gender differences are well expressed, with males typically larger and more muscular. The essential characteristics enable it to work as a hog and cattle catching dog, and a protector of personal property. (Updated Sept 2023) | The American Bulldog should generate the impression of great strength, agility, endurance and exhibit a well-knit, sturdy, compact frame with the absence of excessive bulk. |
| Color | All white, pied, and bodysuits with more than 25% white are acceptable. Patches can be brindle, reverse brindle, black, blue, red, brown, chocolate, fawn, blue fawn & tan. Dogs with less than 25% white, primarily solid black, blue or chocolate, black and tan or trindle pattern markings, fawn with a black mask, and/or any degree of merle are all disqualifiers. | Solid white, or any color pattern including black, red, brown, fawn and all shades of brindle. For the Johnson/Bully type only Blue Brindle & Pied are acceptable colors but still considered as cosmetic fault. Faults: Any degree of merle. Disqualification: Any Blue Color in Scott/Standard type or Solid Blue in Johnson/Bully type. | Any color, color pattern, or combination of colors is acceptable, except for solid black, solid blue, merle, and tricolor (white with patches of black and tan). A full black mask is also unacceptable. Serious Fault: Less than 10% white markings. Disqualifications: Solid black or blue with no white markings; tricolor; merle; full black mask. (Updated Sept 2023) | All white, pied, or up to 85% color (brindle, red/fawn, black), if there is color on the head it should appear to be color on a white head. Disqualifications: less than 15% white, blue, black and tan, tri-color, merle, full black mask. |
| Size | Males: 23 to 25 inches, 90 to 110 lbs. Females: 22 to 24 inches, 70 to 90 lbs. Weight should be proportional to height and body type. Standard: leaner and more athletic. Classic: larger and more powerful. | Standard Type: Males 23 to 27 inches, 75 to 115 lbs. Females 21 to 25 inches, 60 to 85 lbs. Bully Type: Males 23 to 27 inches, 80 to 125 lbs. Females 22 to 26 inches, 60 to 105 lbs. | Desirable height in a mature male ranges from 22 to 27 inches; in a mature female, from 20 to 25 inches. Weight should be proportional to height and body type. | Bully type: Males 23 to 25 inches. Standard type: Males 24 to 27 inches. Height and weight should be balanced and proportional to the type. |
| Coat | Short, less than one inch in length varying from soft to stiff. Long, feathering, or fuzzy coats are a DQ. | Short and smooth. Serious Fault: Long and fuzzy coats. | The coat is short, close, and varies from soft to stiff to the touch. It is one inch or less in length. Disqualifications: Longer than one inch, any feathering, or a wavy coat. | Short, close, stiff to the touch, not long and/or fuzzy with no feathering. |
| Head | Relatively large and broad in proportion to the size and overall structure of the dog. Flat on top giving a squared appearance. Defined furrow between the eyes with a distinct, deep stop. Standard: box shaped to wedge. Classic: box shaped to round with more definitive stop. | Broad, flat on top with a squared appearance and well defined stop. Medium in length with pronounced muscular cheeks. Standard Type: box or wedge preferred. Bully Type: larger rounder shape is ideal. | The head is large and broad, giving the impression of great power. Skull and muzzle are parallel, joined by a very deep, abrupt stop. The forehead is wider than it is high. Bully types: box-shaped to rounded with more definitive stop. Standard types: box or wedge-shaped. Serious Fault: excessively narrow skull. | Medium in length and broad across skull with pronounced muscular cheeks. Bully type: large and round with a definitive stop preferred. Standard type: sleek, box or wedge shaped preferred. |
| Eyes | Round or almond shape, medium sized, wide set. Dark brown preferred; light brown or hazel accepted. Black eye rim pigment preferred. Blue, glass, cracked, crossed, wall eyed and/or nonsymmetrical eyes are a DQ. | Almond-shaped to round, medium-sized. Brown eye color is preferred. | Eyes are medium in size, round to almond in shape, and set well apart. All colors acceptable, dark brown preferred. Haw should not be visible. Black eye rims preferred. Fault: Very visible haws. DQ: Crossed eyes; eyes that do not match in color. | Medium in size and wide set. Dark brown preferred but other colors acceptable. |
| Ears | Medium in size, either drop or rose with no preference. Deaf dogs (unilateral or bilateral), cropped ears & bat ears are a DQ. | Set high on the head, medium in size, may be drop, semi-prick, or rose. Faults: Cropped ears. Hound Ears. | Ears may be cropped, but natural ears are preferred. Natural ears are small to medium, high set; may be drop, semi-prick, or rose. No dog shall be penalized for natural ears. Fault: Hound ears. | Cropped or uncropped, with uncropped being preferred. |
| Muzzle | Relatively broad and square. Large jaws well-muscled. Lips full but not pendulous. Standard: 30% to 40% of overall head length. Classic: 25% to 35% of overall head length. Difficulty breathing in the ring is a DQ. | Broad with wide-open nostrils. | The muzzle is broad and thick, with a very slight taper from the stop to the nose. Bully type: 25-35% of overall head length. Standard type: 30-40%. Lips moderately thick, not pendulous. Black lip pigment preferred. Serious Fault: excessively narrow muzzle. DQ: difficulty breathing in the ring. | Medium length (2 to 4 in.), square and broad with a strong wide underjaw. |
| Teeth | 42 teeth (missing premolars accepted). Upper jaw: 6 incisors, 2 canines, 8 premolars, 4 molars. Lower jaw: 6 incisors, 2 canines, 8 premolars, 6 molars. Working dogs not penalized for broken teeth. | Teeth should be medium to large and should not be visible when mouth is closed. | Complete set of 42 large, evenly spaced, white teeth. Worn or broken teeth are acceptable. | Medium length (2 to 4 in.), square and broad. |
| Bite | Standard: Reverse scissors preferred. Classic: Undershot 1/8 to 1/2 inch preferred; more than 1/2 inch is a serious fault. Both types: Teeth showing when mouth is closed, overbites (parrot mouth), and wry jaw are DQs. | Teeth should be medium to large and should not be visible when mouth is closed. | Standard type: reverse scissors preferred, scissors or moderate undershot (up to 1/4 inch) acceptable. Bully type: undershot approx 1/4 inch preferred, 1/8 to 1/2 inch acceptable. Teeth not visible when mouth closed. DQ: Overshot. Wry jaw. | Medium length (2 to 4 in.), square and broad. |
| Nose | Large with wide open nostrils. Black preferred; brown acceptable. Lack of pigment is a minor fault. Pinched nostrils/nares are a serious fault. Completely pink/dudley nose is a DQ. | Preferred nose color is Black. | The nose is large, with wide, open nostrils. | Black or Liver but black is preferred. |
| Neck | Very muscular, medium in length, as broad as the head at its widest point where it meets the shoulder. Tapers from shoulder to head and slightly arched. Slight dewlap acceptable. | Slightly arched, very muscular, and of moderate length. | Muscular, nearly as broad as the head at its widest point, with a slight arch at the crest. Must be long enough for leverage but short enough for power. Slight dewlap acceptable. Faults: too short and thick; thin or weak neck. | Muscular, medium in length, slightly arched. |
| Shoulders | Well-muscled with good definition. Wide sloping blades set so elbows are not angled out. Blades (scapula) well laid back forming a 90 degree angle with the upper arm (humerus). | The chest should be deep and moderately wide. | Shoulders strong and well muscled. Shoulder blade well laid back forming approx 90-degree angle with upper arm. Forelegs heavily boned and muscular, elbows parallel to body. Pasterns short, powerful, slightly sloping. | Very muscular with wide sloping blades. |
| Body / Chest / Back | Compact and moderately short, powerful and athletic. Good spring of ribs. Chest deep and moderately wide. Back broad and moderately short with slight roach over loins. Standard: more level topline. Classic: slightly higher in the rear. | Wide, deep chest; fairly compact. | Chest deep and moderately wide with ample room for heart and lungs. Ribs well sprung, body extending to elbows or lower. Topline inclines slightly downward from withers to broad, muscular back. Loin short, broad, slightly arched. Flank moderately tucked. Serious Faults: Swayback; sloping topline. | The chest should be deep and moderately wide. |
| Legs | Strong and straight with moderate to heavy bone. Fine bones is a major fault. Rear legs moderately angulated and parallel. Excessively bow-legged, fiddle fronted or cow hocked is a major fault. | The legs should be strong and straight with moderate to heavy bone. | Forelegs heavily boned and muscular. Hind legs: thighs well developed with thick muscles, lower thighs muscular and short. Rear pasterns well let down and perpendicular to ground. Faults: Cowhocks; open hocks. | Strong and straight with heavy bone. |
| Hindquarters | Thick with well-defined muscles. Not as wide as shoulders, but well-balanced. Hips and thighs should not be narrow or lacking in muscle definition and density. | Broad, well muscled with muscles tapering well to the leg. | Hindquarters well muscled and broad. Width and angulation in balance with forequarters. Serious Faults: Narrow or weak hindquarters. | Very broad and well-muscled and in proportion to the shoulders. |
| Tail | Set low, thick at base, tapering to a point. Should reach the hocks. Docked tails, screw tails, and tails ending in a complete circle are a DQ. Kinked tails are a structural fault. | Strong at the root tapering to the hocks. | Natural or docked tail, natural preferred. Thick at base, set low, tapers to a point, reaching hock joint. Pump handle preferred. No dog penalized for full tail. Serious Faults: curled over back; corkscrew; kinked; complete curl; upright when relaxed. | Set low, thick at the root, tapering to a point. |
| Feet | Upright, not flat or hare footed, moderate size with toes well arched and close together. Toes should not be splayed. Pasterns upright. Toe nails should be short. | The feet are round, medium in size; toes are well arched, and tight. | The feet are round, medium in size, well arched, and tight. | Of moderate size, toes of medium length, well arched and close together. |
| Gait | Should move with speed, agility, and power with a definite spring to the step. All legs move parallel to direction of travel. Topline should remain level, head and tail up. Faults: pacing, paddling, side winding. A lame or limping dog is a DQ. | The gait should be balanced and smooth. | When trotting, the gait is effortless, smooth, powerful and well coordinated, showing good reach in front and drive behind. Topline remains level. Legs turn neither in nor out, feet do not cross. As speed increases, feet converge toward center line. Poor movement penalized proportionally to how it reduces working ability. | The gait is balanced and smooth, powerful and unhindered. |
| Disqualifications | Spayed/neutered dogs. Females in heat. Males without 2 testicles. Excessively shy or aggressive behaviour. Less than 25% white. Primarily solid black, blue or chocolate. Long/fuzzy coats. Blind or deaf dogs. Cropped or bat ears. Breathing difficulty in ring. Teeth showing. Overbites/wry jaw. Pink/dudley nose. Docked/screw tails. Lame/limping dog. | Any dog that has been spayed or neutered. | Cryptorchid (unilateral or bilateral). Viciousness or extreme shyness. Cowardice. Deafness (unilateral or bilateral). Difficulty breathing in the ring. Wry jaw. Overshot bite. Crossed eyes. Eyes that do not match in color. Coat over 1 inch, feathering, or wavy coat. Albinism. Solid black or blue with no white. Tricolor. Merle. Full black mask. (Updated Sept 2023) | Unilateral or bilateral cryptorchidism. Viciousness or extreme shyness. Crossed eyes. Wall-eyed. Wry mouth. Even or scissors bite in Bully type. Deafness. Less than 15% white. Blue. Black and tan. Tricolor. Merle. Full black mask. |
| Notes | - | Cosmetic Faults: A cosmetic fault is one of a minor nature. | No dog in any UKC event shall be penalized for a full tail or natural ears. Standard last revised September 12, 2023. | Point Breakdown for Judging: Overall proportion: 10, Temperament: 10 (Total 20). Head: 5, Muzzle/Bite: 5, Teeth: 5 (Total 15). Body: Neck 5, Shoulders 5, Chest 10, Back 5, Hindquarters 10, Legs 5, Feet 5, Tail/Coat 5 (Total 50). Movement: Overall 5, Front Reach 5, Rear Drive 5 (Total 15). Grand Total: 100 points. |