Bull-Terrier-Breeding
Terrier Breed

Bull Terrier Dog BreedingFind the Perfect Match

Connect with responsible Bull Terrier breeders and find the ideal breeding partner for your unique companion

Bull Terrier Breed Characteristics

Understanding your Bull Terrier's distinctive appearance and spirited personality is essential for responsible breeding

Weight Range

Male: 55-65 lbs

Female: 45-55 lbs

Height at Shoulder

Male: 21-22 inches

Female: 21-22 inches

Life Expectancy

11-14 years

With proper care

Temperament

Playful, Mischievous

Gladiator in a suit

Unique Bull Terrier Traits

Egg-Shaped Head

Distinctive downfaced, egg-shaped head is breed hallmark. Should be strong and deep right to end of muzzle. Avoid extreme types that compromise breathing.

Triangular Eyes

Small, triangular eyes give unique expression. Should be dark and sunken. Light eyes undesirable. Check for entropion/ectropion.

Color Varieties

White (pure or with head markings) or colored (any color predominating). White dogs have higher deafness risk. Skin pigmentation important.

Strong-Willed Nature

Independent, stubborn, and mischievous. Need experienced owners. Can be dog-aggressive. Temperament testing crucial for breeding stock.

CRITICAL HEALTH INFORMATION

Bull Terrier Health Considerations

Bull Terriers face serious breed-specific health challenges requiring extensive testing and careful breeding

Deafness

High Risk

BAER hearing test MANDATORY, especially for white Bull Terriers. Up to 20% of white dogs are deaf. Test all puppies before placement.

Kidney Disease (Hereditary Nephritis)

High Risk

Genetic testing available and MANDATORY. Fatal kidney disease specific to Bull Terriers. Annual urinalysis starting at 18 months.

Heart Disease (Mitral Valve Disease)

Moderate-High Risk

Annual cardiac evaluation with echocardiogram recommended. Heart murmurs common in the breed. Start screening at 1 year.

Patellar Luxation

Moderate Risk

OFA patella evaluation required. Common in Bull Terriers. Can require expensive surgery if severe.

Skin Problems

High Risk

White Bull Terriers prone to skin allergies, sunburn, and skin cancer. Breed for good pigmentation around eyes and nose.

Lens Luxation

Moderate Risk

Annual eye exams required. Genetic test available for Primary Lens Luxation. Can cause blindness if untreated.

Compulsive Behaviors

Moderate Risk

Bull Terriers prone to spinning, tail chasing, and other compulsive behaviors. Often genetic. Screen breeding stock for behavioral soundness.

Lethal Acrodermatitis (LAD)

Low Risk

Genetic test available. Fatal zinc metabolism disorder. All breeding stock should be tested.

Critical: Deafness in White Bull Terriers

Up to 20% of white Bull Terriers are born deaf in one or both ears. BAER hearing testing is MANDATORY for all breeding stock and puppies. Unilateral (one ear) deafness is difficult to detect without testing. Deaf dogs should NEVER be bred. All puppies must be BAER tested before placement. Breeding two white dogs increases deafness risk significantly.

Critical: Hereditary Nephritis (Kidney Disease)

Bull Terriers have a breed-specific fatal kidney disease. Annual UPC (urine protein:creatinine) ratio testing is MANDATORY starting at 18 months. Genetic testing now available and should be performed on all breeding stock. Affected dogs typically show symptoms between 1-8 years. Once symptoms appear, the disease is fatal. Early detection through annual testing is the only way to prevent breeding affected dogs.

Bull Terrier Breeding Guidelines

Follow these essential guidelines for responsible Bull Terrier breeding

Optimal Breeding Age

Male Bull Terriers

2 to 7 years

Female Bull Terriers

2 to 6 years

Wait until full physical and mental maturity. Bull Terriers can be slow to mature mentally. Early breeding may pass on behavioral issues.

Health Testing Requirements

  • BAER hearing test - MANDATORY for all colors
  • Kidney function tests (UPC ratio) - MANDATORY annually
  • Heart evaluation (echocardiogram) - MANDATORY
  • Patella evaluation (OFA) - MANDATORY
  • Eye Examination (CERF/OFA) - Annual requirement
  • Primary Lens Luxation genetic test - Highly recommended
  • Hereditary Nephritis genetic test - MANDATORY
  • Lethal Acrodermatitis genetic test - Recommended

Bull Terriers require extensive health testing due to breed-specific conditions. Never skip testing to save money.

Breeding Frequency

Females: Maximum once per year, 3-4 litters lifetime

Skip at least one heat cycle between litters

Quality over quantity. Focus on improving the breed's health and temperament

Additional Breeding Considerations

  • Behavioral Testing: Bull Terriers can be dog-aggressive and strong-willed. Temperament test all breeding stock. Avoid breeding dogs with aggression or compulsive behaviors.
  • Sun Protection: White Bull Terriers are prone to sunburn and skin cancer. Educate buyers about sun protection. Breed for good pigmentation.
  • Exercise Needs: High energy breed that needs mental and physical stimulation. Destructive when bored. Screen homes for active lifestyles.
  • Not for Everyone: Bull Terriers require experienced owners. Not suitable for first-time dog owners. Careful buyer screening essential.

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