Breeding Coton de Tulear

Complete Guide for Responsible Breeders

Breeding Coton de Tulear requires balancing the preservation of their distinctive cotton-like coat texture with careful management of their limited gene pool. As Madagascar's "Royal Dog," this rare breed demands meticulous attention to health testing, temperament selection, and the unique genetic challenges that stem from their isolated island origin.

Breed Overview

The Coton de Tulear originated in the port city of Tulear (now Toliara) on the island of Madagascar, where they became the favored companions of Malagasy nobility. The breed descended from small white dogs that likely arrived with European sailors and traders centuries ago, interbreeding with local dogs to create a hardy, adaptable companion uniquely suited to Madagascar's climate and isolation. The Coton remained virtually unknown outside Madagascar until French tourists brought specimens to Europe in the 1960s.

The AKC recognized the breed in 2014, making it one of the more recently recognized breeds in the Non-Sporting Group. Currently ranked 82nd in AKC popularity, the Coton de Tulear maintains stable registration numbers, appealing to those seeking a rare, intelligent companion with a naturally clownish personality. The breed's limited population and island origin create unique genetic diversity challenges that responsible breeders must actively manage.

The United States of America Coton de Tulear Club (USACTC) serves as the AKC parent club, providing breed education, health research support, and breeder mentorship programs.

Breed Standard Summary for Breeders

The Coton de Tulear is a hardy, sturdy small companion dog with a rectangular outline, measuring approximately 1.5 times as long as tall. Males stand 10-11 inches at the withers and weigh 9-15 pounds, while females measure 9-10 inches and weigh 8-13 pounds. This breed is NOT "long and low" but rather balanced with proper proportions.

The most distinctive breed characteristic is the cotton-like coat texture—not silky, not woolly, not tightly curled, but genuinely resembling cotton fiber. This texture is paramount in breeding selection and is listed as a serious fault when incorrect. The coat should be long, dry to the touch, and slightly wavy but never corded.

Disqualifications that affect breeding stock selection:

• Bitches under 8.5 inches or over 11 inches
• Dogs (males) under 9.5 inches or over 12 inches
• Black on body at any age (the standard is very specific on this point)
• Completely unpigmented nose or lips
• Eye rims completely lacking black pigmentation

Serious faults impacting breeding programs:

• Wheel back or flat back (the breed requires a natural arch over the loin through the croup)
• Overly large, bulging, or almond-shaped eyes (should be dark, round, and expressive)
• Atypical coat texture
• Color exceeding 5% light tan on adult dogs over 12 months
• Artificial grooming that alters natural appearance

Breeding priorities should emphasize correct cotton-like coat texture, happy and stable temperament, proper rectangular proportions, complete black pigmentation, natural topline arch, and sound movement with reach and drive. The Coton's temperament—confident, sociable, and naturally clownish—is as essential as physical structure.

Reproductive Profile

Coton de Tulear have an average litter size of 4 puppies, with typical litters ranging from 2 to 6 puppies. This small litter size is characteristic of toy and small companion breeds and has economic implications for breeding programs. The C-section rate is approximately 12%, which is relatively low compared to many companion breeds, particularly brachycephalic types. Natural whelping is the norm, though first-time mothers may require extra monitoring and support.

The breed's island origin and historically small gene pool create some fertility considerations. Limited genetic diversity means progesterone testing is highly recommended to determine optimal breeding timing, as missed breeding windows can be costly with small litter sizes. Natural breeding is preferred and generally successful, but fresh artificial insemination is suitable when needed. Frozen AI is less common due to the breed's small size and generally good natural fertility.

Small litter size is typical, with 4-puppy litters being most common (30% frequency), followed by 3-puppy litters (25%). Litters of 2 puppies occur in about 15% of breedings, while litters of 5 or 6 puppies are less frequent but not rare. These smaller litter sizes mean individual puppies may be larger relative to the dam's size, which breeders should monitor during whelping.

Breeding Age and Timeline

Female Cotons typically experience their first heat cycle between 5-7 months of age, though individual variation is normal. However, first breeding should not occur until 18-24 months of age, ideally after 2-3 heat cycles. This allows the female to reach full physical and mental maturity before the demands of pregnancy and motherhood. Males can be used for breeding starting at 12-18 months once they have completed health testing.

OFA health testing minimum age is 12 months for patella evaluation. Cardiac evaluation and eye examinations can be performed earlier but should be repeated to meet CHIC requirements. Many breeders prefer to wait until 24 months to complete all baseline health testing before the first breeding.

The recommended retirement age for females is 6-7 years, with a maximum of 5 litters per female over her breeding lifetime. This conservative approach helps preserve the health and quality of life of breeding females while managing the genetic diversity challenges inherent in a rare breed with a small gene pool.

Timeline from health testing through puppy placement:

• Month 0: Complete all CHIC-required health testing (minimum 12 months of age)
• Month 1: Begin progesterone testing when female enters proestrus
• Month 2-3: Breeding occurs at optimal progesterone level; confirm pregnancy at 28-30 days via ultrasound
• Month 4: Prenatal veterinary examination; begin preparing whelping area
• Month 5: Whelping occurs approximately 63 days post-breeding; puppies born
• Month 6-7: Puppies weaned at 6-7 weeks; neurological and structural evaluations
• Month 8: Puppies go home at 8-10 weeks with AKC registration, veterinary examination, and initial vaccinations

Required Health Testing

The Canine Health Information Center (CHIC) requires three specific health tests for Coton de Tulear breeding stock. These requirements reflect the breed's most significant hereditary health concerns and provide a foundation for responsible breeding decisions.

CHIC-Required Testing:

Eye Examination by CAER/CERF Ophthalmologist (one-time, then every 24 months throughout breeding life): Screens for progressive retinal atrophy, cataracts, retinal dysplasia, and Canine Multifocal Retinopathy (CMR), a condition with moderate prevalence in the breed. Cost: $65 per examination.

Patella Evaluation (OFA) (one-time): Patellar luxation is the most prominent health problem in Coton de Tulear, making this screening essential. Evaluates knee joint stability and grades luxation from normal to severe. Cost: $60.

Cardiac Evaluation (OFA) (one-time): Screens for congenital heart defects and valve abnormalities through auscultation by a board-certified cardiologist or practitioner with advanced cardiac training. Cost: $75.

Total estimated CHIC testing cost per dog: $200 (assuming one eye exam at minimum and re-exams every 2 years for active breeding dogs).

Additional Recommended Testing Beyond CHIC Requirements:

While not required for CHIC certification, serious breeders should consider DNA testing for breed-specific conditions:

• Bandera's Neonatal Ataxia (BNAt) ($65): Autosomal recessive cerebellar disease specific to Coton de Tulear; test breeding stock to avoid carrier-to-carrier pairings
• Canine Multifocal Retinopathy (CMR) ($75): DNA test for inherited retinal lesions with moderate prevalence in the breed
• Von Willebrand's Disease Type 1 ($75): Bleeding disorder with low to moderate prevalence
• Degenerative Myelopathy (DM) ($75): Late-onset progressive spinal cord disease
• Hip Dysplasia (OFA or PennHIP) ($240): Though not required, screening is wise given the breed's structure
• Thyroid Panel (OFA) ($180): Screens for autoimmune thyroiditis

Hereditary Health Conditions

The Coton de Tulear's island origin and limited genetic diversity contribute to several hereditary health conditions breeders must understand and screen for. Unlike the similar Bichon Frise, which shares the white, fluffy companion dog profile but with a different disease burden, the Coton has several breed-specific genetic conditions that require DNA testing.

Bandera's Neonatal Ataxia (BNAt) — Rare but breed-specific: This autosomal recessive mutation in the glutamate receptor gene causes severe neurological dysfunction present from birth. Affected puppies cannot coordinate movements and typically do not survive the neonatal period. DNA testing is available and should be used to identify carriers. Breeding two carriers together results in a 25% chance of affected puppies. Prevalence is rare, but the devastating nature of the condition makes carrier testing essential.

Canine Multifocal Retinopathy (CMR) — Low to moderate prevalence: This autosomal recessive VMD2 gene mutation causes tiny bubbles or lesions around the retinal periphery. The condition is typically non-progressive and does not cause apparent vision impairment, making it less clinically significant than other retinal diseases. However, DNA testing allows breeders to avoid producing affected dogs and provides transparency to puppy buyers.

Patellar Luxation — Common, the most prominent health problem in the breed: Approximately 35% prevalence makes this the single most important structural health concern for Coton breeders. The kneecap slips out of position (typically medially in toy breeds), causing lameness, skipping gait, and pain ranging from mild to severe requiring surgical correction. Inheritance is polygenic with environmental factors contributing. No DNA test exists; OFA patella evaluation is the screening method. Select against breeding dogs with Grade 2 or higher luxation, and carefully evaluate offspring from all breedings for signs of luxation.

Von Willebrand's Disease Type 1 — Low to moderate prevalence (12%): This autosomal recessive bleeding disorder with incomplete penetrance can cause prolonged bleeding after surgery or trauma, nosebleeds, bruising, and blood in urine or feces. DNA testing identifies carriers and affected dogs. While clinical signs may not manifest until surgery or trauma occurs, responsible breeders should test and avoid carrier-to-carrier pairings or at minimum inform puppy buyers of carrier status.

Degenerative Myelopathy (DM) — Low prevalence (8%): This autosomal recessive SOD1 gene mutation causes progressive loss of coordination in hind limbs beginning at 8-14 years of age, eventually progressing to paralysis. DNA testing is available. Because onset is late in life, many affected dogs live full lives before symptoms appear, but breeders should still test and make informed pairing decisions.

Primary Hyperoxaluria (PH) — Rare but devastating: This autosomal recessive condition causes accumulation of calcium oxalate crystals in the kidneys, leading to kidney failure with symptoms appearing at 3-4 weeks of age and progressing rapidly. DNA testing is available and highly recommended despite rarity, as affected puppies will die young.

Color and Coat Genetics

The Coton de Tulear's name literally means "Cotton of Tulear," referring to the breed's distinctive cotton-like coat texture. Color genetics in the breed are relatively straightforward compared to many breeds, but coat texture genetics remain poorly understood and are likely polygenic.

AKC Accepted Colors:

• White (preferred, the hallmark of the breed; may have up to 5% light tan shadings on adults)
• Black and white
• Tricolor (white, tan, grey/black)

Disqualifying Colors:

• Black on body at any age (note: this is very specific—any black on the body coat disqualifies)

Relevant Genetic Loci:

• E locus (Extension): Controls distribution of black and red pigment
• K locus (Dominant Black): Influences whether agouti patterns can express
• A locus (Agouti): Determines pattern of pigment distribution
• D locus (Dilution): Can dilute black to blue/grey (seen in tricolor)
• S locus (Piebald/White spotting): Responsible for extensive white in the breed

Most Cotons are extensively white due to extreme expression at the S locus. The tan shadings sometimes seen on puppies often fade as the dog matures; the standard allows up to 5% light tan on adults. Black and white or tricolor Cotons are less common but fully acceptable. What is NOT acceptable is solid black or black patches on the body—the breed standard is explicit about this disqualification.

Health-Linked Colors: Unlike some breeds, the Coton does not have known health conditions specifically linked to coat color. However, pigmentation quality (black nose, lips, and eye rims) is essential and linked to breed type.

Coat Texture Considerations: The cotton-like texture is the breed's defining characteristic, yet the genetic basis remains incompletely understood. Texture is likely polygenic and influenced by multiple genes. Breeders must prioritize texture in selection, as silky, woolly, or tightly curled coats are serious faults. Evaluating coat texture in young puppies can be challenging; texture becomes clearer as the adult coat develops after 12 months of age.

Selecting Breeding Stock

Selecting breeding stock for Coton de Tulear requires balancing conformation, temperament, health testing, and genetic diversity management. With an average coefficient of inbreeding (COI) of 8.5% in the breed population, breeders should target breedings that produce offspring with COI under 5% to preserve genetic diversity.

Conformation Priorities:

1. Correct cotton-like coat texture — Non-negotiable; the defining breed characteristic
2. Proper rectangular proportions — 1.5:1 length to height ratio; not long and low, not square
3. Happy, stable, sociable temperament — The Coton's clownish, adaptable personality is as important as structure
4. Complete black pigmentation — Nose, lips, and eye rims must be fully pigmented
5. Natural topline with arch over loin through croup — Wheel back or flat back is a serious fault
6. Sound movement with reach and drive — Balanced movement without exaggeration
7. Correct triangular head type when viewed from above
8. Dark, round, expressive eyes set wide apart

Common Faults to Select Against:

• Atypical coat texture (silky, woolly, tightly curled)
• Wheel back or flat back lacking natural arch
• Excessive size over standard
• Shy or aggressive temperament (major red flag in a companion breed)
• Poor pigmentation
• Almond-shaped or bulging eyes
• Short, square proportions
• Poor movement

Temperament Evaluation: Assess sociability with humans and other dogs in multiple contexts. Look for confident, happy, adaptable personality. The Coton should be outgoing and engaging, not shy, nervous, or aggressive. Temperament is a main breed characteristic—breeding dogs with temperament issues undermines the breed's purpose as a companion.

COI Targets: With the breed's limited gene pool due to island origin and relatively recent AKC recognition, genetic diversity management is critical. Calculate COI for all potential breedings and target offspring COI under 5%. Outcrossing to less-related lines may require accepting minor structural compromises to preserve breed health, but never compromise on temperament or severe structural faults.

Stud Selection: Stud fees for Coton de Tulear typically range from $500 to $1,200, with proven males with championships and excellent offspring records commanding higher fees. Evaluate potential studs for health testing completion, temperament, coat texture, and genetic diversity contribution to your line. A stud that complements your female's strengths and compensates for her weaknesses while reducing offspring COI is ideal.

Whelping and Neonatal Care

Natural whelping is the standard for Coton de Tulear, with a C-section rate of approximately 12%—lower than many toy and companion breeds. However, the small litter size typical of the breed can lead to larger individual puppy size relative to the dam, which breeders should monitor for potential dystocia.

Breed-Specific Whelping Considerations:

• Small litter size: With average litters of 4 puppies, individual puppy size may be larger relative to dam size than in breeds with larger litters. Monitor for signs of dystocia.
• Toy breed considerations: While the Coton is sturdier than many toy breeds, close monitoring during whelping is essential. Have your veterinarian's emergency number readily available.
• First-time mothers: Maiden bitches may need extra support and reassurance. Prepare to assist with puppy cleaning and positioning if needed.

Expected Birth Weights:

• Males: 11-13 oz (approximately 0.7 lbs)
• Females: 10-12 oz (approximately 0.65 lbs)

Daily Weight Gain Target: Puppies should gain 5-10% of their birth weight per day during the first two weeks. Weigh puppies daily at the same time and maintain detailed records. Puppies not gaining appropriately may need supplemental feeding.

Monitoring for Fading Puppy Syndrome: Due to the breed-specific risk of Bandera's Neonatal Ataxia, monitor puppies closely for neurological symptoms during the first few days of life. Affected puppies will show inability to coordinate movements from birth. While rare, early identification allows for appropriate veterinary consultation.

No Cosmetic Alterations: Dewclaw removal, tail docking, and ear cropping are NOT practiced in this breed. Coton de Tulear are shown and sold in natural condition.

Puppy Development Milestones

Coton de Tulear puppies develop rapidly during the first 12 weeks, reaching approximately 50-60% of adult weight by 8 weeks of age. Understanding breed-specific growth patterns helps breeders monitor health, plan socialization, and time structural evaluations appropriately.

Weekly Growth Expectations:

• Week 0 (Birth): Males ~0.7 lbs, Females ~0.65 lbs
• Week 4: Males ~2.7 lbs, Females ~2.4 lbs (approximately 4x birth weight)
• Week 8: Males ~5.3 lbs, Females ~4.8 lbs
• Week 12: Males ~8.0 lbs, Females ~7.2 lbs

Critical Developmental Windows:

Neonatal Period (0-2 weeks): Eyes and ears closed; puppies are entirely dependent on dam. Focus on warmth, weight gain, and ensuring adequate nursing. Monitor for any signs of neonatal ataxia.

Transitional Period (2-3 weeks): Eyes and ears open; puppies begin to walk and interact with littermates. Introduce gentle handling and mild stimulation.

Socialization Window (3-14 weeks, critical period through 16 weeks): This is the MOST important developmental period. Puppies should experience a wide variety of people, surfaces, sounds, and environments in a positive, controlled manner. The Coton's naturally sociable temperament must be nurtured through extensive positive experiences. Lack of proper socialization can lead to fearfulness or reactivity that undermines the breed's companion dog purpose.

Fear Periods: Puppies typically experience a fear period around 8-10 weeks. Avoid traumatic experiences during this time. Some puppies experience a second fear period around 6-8 months.

Weaning: Begin introducing solid food at 3-4 weeks; puppies should be fully weaned by 6-7 weeks.

Structural Evaluation Timing: Initial puppy evaluations at 8-12 weeks can identify obvious faults or standout show prospects, but coat texture and structure continue developing. Re-evaluate at 6 months when adult coat begins emerging and structure is clearer.

Go-Home Age: Puppies should go to their new homes at 8-10 weeks of age. This timing allows adequate socialization with littermates and dam while placing puppies during the critical socialization window with their new families.

Adult Size Achievement: Cotons reach adult size at 12-13 months of age, though coat texture continues maturing through 18-24 months.

Breeding Economics

Breeding Coton de Tulear requires significant financial investment, particularly given the small litter sizes typical of the breed. A realistic economic analysis helps breeders understand the true costs and set appropriate pricing that reflects responsible breeding practices.

Cost Breakdown for a Typical Breeding (Natural Whelping, 4-Puppy Litter):

Pre-Breeding Costs:

• Health testing per dog: $200 (CHIC-required tests only; add $500+ if including full DNA panel)
• Stud fee: $800 (mid-range for the breed)
• Progesterone testing: $150 (2-3 tests to pinpoint optimal breeding timing)

Prenatal and Whelping Costs:

• Prenatal veterinary care: $300 (wellness exam, pregnancy confirmation, pre-whelping exam)
• Whelping supplies and monitoring: $250 (whelping box, clean bedding, monitoring equipment, heating)
• C-section if needed: $2,000 (emergency C-section cost; factor into risk assessment)

Puppy Costs (First 8-10 Weeks):

• Puppy veterinary care: $125 per puppy x 4 = $500 (exams, dewormings, first vaccinations)
• Food and supplies: $300 (high-quality puppy food, dam's increased nutrition, supplies)
• AKC registration: $120 (litter registration plus individual puppy registrations)

Total Investment (Natural Whelping): $2,620

Total Investment (C-Section): $4,370

Revenue:

• Pet-quality puppies: $2,500 per puppy (average for companion homes)
• Show-quality puppies: $3,500 per puppy (limited registration, show/breeding potential)

Average 4-puppy litter revenue (assuming all pet-quality): $10,000

Net Analysis:

• Natural whelping: $10,000 revenue - $2,620 costs = $7,380 net
• C-section: $10,000 revenue - $4,370 costs = $5,630 net

Important Economic Considerations:

• These figures do NOT include the breeder's time (puppy socialization, buyer screening, ongoing support)
• Health testing costs are amortized across multiple litters over a female's breeding career
• Not all litters are average; 2-puppy litters significantly reduce revenue
• Show expenses, advertising, website maintenance, and continuing education add to costs
• Responsible breeders provide lifetime support and take back dogs when needed

Is Breeding Coton de Tulear Profitable? It can be modestly profitable with average litter sizes and natural whelping, but the rare breed status, small litters, and substantial time investment mean this is not a high-profit endeavor. Breeders motivated primarily by profit often cut corners on health testing, socialization, or buyer support—practices that harm the breed and individual dogs.

Breeder Resources

Parent Club: The United States of America Coton de Tulear Club (USACTC) is the AKC-recognized parent club. Website: https://www.usactc.dog/

The USACTC provides breed education, coordinates health research, maintains breeder and puppy referral lists, and offers mentorship programs connecting new breeders with experienced mentors.

Regional Clubs: Several regional Coton clubs exist to support breeders and exhibitors in specific geographic areas. Contact the USACTC for information on clubs in your region.

AKC Breeder Programs:

• AKC Breeder of Merit: Recognizes breeders dedicated to health testing, education, and breed preservation
• AKC Bred with H.E.A.R.T. Program: Highlights breeders committed to Health, Education, Accountability, Responsibility, and Tradition

Recommended Books:

• The Coton de Tulear: A Complete and Comprehensive Owners Guide
• Coton de Tulear Bible and the Coton de Tulear

Online Communities:

• American Coton Club
• North American Coton Association
• Coton de Tulear Club of America

Additional Resources:

• OFA database: Research health testing statistics and pedigree health information
• AKC Canine Health Foundation: Support and access breed-specific health research
• Coton breed-specific health studies and surveys through the USACTC

Frequently Asked Questions

How many puppies do Coton de Tulear typically have?

Coton de Tulear have an average litter size of 4 puppies, with typical litters ranging from 2 to 6 puppies. Litters of 3-4 puppies are most common (55% combined frequency), while litters of 5-6 puppies are less frequent (30% combined). Litters of only 2 puppies occur in approximately 15% of breedings. This small litter size is characteristic of toy and small companion breeds.

Do Coton de Tulear need C-sections?

No, Coton de Tulear typically whelp naturally. The C-section rate is approximately 12%, which is relatively low compared to many toy and companion breeds. Natural whelping is the norm, though first-time mothers may need extra monitoring and support. The small litter size can occasionally lead to larger individual puppy size relative to the dam, which may increase dystocia risk, but planned C-sections are not standard practice.

What health tests are required for breeding Coton de Tulear?

CHIC-required health tests include Eye Examination by CAER/CERF ophthalmologist (one-time, then every 24 months), Patella Evaluation by OFA (one-time), and Cardiac Evaluation by OFA (one-time). Total cost for basic CHIC testing is approximately $200 per dog. Additional recommended DNA tests include Bandera's Neonatal Ataxia ($65), Canine Multifocal Retinopathy ($75), Von Willebrand's Disease Type 1 ($75), and Degenerative Myelopathy ($75).

How much does it cost to breed Coton de Tulear?

Total costs for a typical breeding with natural whelping average $2,620, including health testing ($200), stud fee ($800), progesterone testing ($150), prenatal care ($300), whelping supplies ($250), puppy vet care ($500), food ($300), and registration ($120). If a C-section is needed, costs increase to approximately $4,370. These figures do not include the breeder's substantial time investment in socialization and buyer education.

At what age can you breed a Coton de Tulear?

Female Cotons typically have their first heat at 5-7 months but should NOT be bred until 18-24 months of age, ideally after 2-3 heat cycles. This allows full physical and mental maturity. Males can be used for breeding starting at 12-18 months once health testing is complete. OFA minimum testing age is 12 months for patella evaluation. Females should retire from breeding by 6-7 years with a maximum of 5 litters per lifetime.

How much do Coton de Tulear puppies cost?

Pet-quality Coton de Tulear puppies from health-tested parents average $2,500, while show-quality puppies with breeding/show potential average $3,500. Prices vary based on geographic location, breeder reputation, health testing completeness, and puppy pedigree. Significantly lower prices may indicate lack of health testing or proper socialization. Significantly higher prices should correlate with exceptional pedigrees and proven show/breeding success.

What are the most common health problems in Coton de Tulear?

Patellar luxation is the most prominent health problem in the breed, affecting approximately 35% of Cotons. Other significant conditions include Canine Multifocal Retinopathy (15% prevalence), Von Willebrand's Disease Type 1 (12%), Degenerative Myelopathy (8%), and breed-specific Bandera's Neonatal Ataxia (rare but devastating). DNA testing is available for several of these conditions, allowing breeders to make informed pairing decisions.

Is breeding Coton de Tulear profitable?

Breeding Coton de Tulear can be modestly profitable with average-sized litters and natural whelping (approximately $7,380 net for a 4-puppy litter), but smaller litters or C-sections significantly reduce margins. A 2-puppy litter may barely break even or result in a loss when accounting for all costs. The substantial time investment required for proper socialization, buyer screening, and lifetime support means this is not a high-profit endeavor. Responsible breeders prioritize breed health and puppy welfare over profit maximization.

What makes the Coton de Tulear coat unique?

The Coton de Tulear's cotton-like coat texture is the breed's defining characteristic and most important selection criterion. The coat should genuinely resemble cotton fiber—long, dry to the touch, and slightly wavy but never silky, woolly, or tightly curled. Coat texture that deviates from this cotton-like quality is a serious fault. The genetic basis for this texture is poorly understood and likely polygenic, making it essential to prioritize texture in every breeding decision.

How is breeding Coton de Tulear different from breeding similar small white companion breeds?

Unlike the Lhasa Apso, which shares a similar small, long-coated companion dog profile, the Coton has a distinctive cotton-like coat texture rather than heavy, straight coat. The Coton's island origin creates unique genetic diversity challenges, with a smaller gene pool requiring careful COI management. The breed also has several breed-specific genetic conditions like Bandera's Neonatal Ataxia that don't appear in related breeds, making DNA testing particularly important in breeding programs.