Datsun Rat Terrier Mix: Complete Breed Guide for Owners

What Is a Datsun Rat Terrier Mix?

The Datsun Rat Terrier mix — sometimes written as "Dachshund Rat Terrier mix" — is a small designer crossbreed produced by pairing a Dachshund with a Rat Terrier. This combination blends the Dachshund's iconic low-slung body and bold scent-hound instincts with the Rat Terrier's compact athleticism, high prey drive, and alert disposition.

Because both parent breeds are small, energetic terrier-type dogs originally developed for hunting and vermin control, the Datsun tends to be a spirited, intelligent companion with a strong personality packed into a small frame. But as with any mixed breed, individual puppies can vary significantly in appearance, size, and temperament depending on which parent's genes dominate.

Parent Breed Breakdown: Dachshund Meets Rat Terrier

Understanding each parent breed is the best way to anticipate what a Datsun puppy might be like. Here's how the two foundation breeds compare across key traits:

Parent Breed Comparison: Dachshund vs. Rat Terrier

Trait	Dachshund	Rat Terrier
AKC Group	Hound	Terrier
Weight Range	Miniature: 8–11 lb (3.6–5 kg) Standard: 16–32 lb (7–14.5 kg)	Miniature: 10–18 lb (4.5–8 kg) Standard: 18–25 lb (8–11 kg)
Height	5–9 in (13–23 cm)	10–18 in (25–46 cm)
Lifespan	12–16 years	12–18 years
Coat Types	Smooth, longhaired, wirehaired	Short, smooth, dense
Shedding	Moderate (varies by coat type)	Moderate, seasonal
Energy Level	Moderate — bursts of activity	High — needs regular exercise
Prey Drive	High (badger-hunting heritage)	Very high (bred for rodent control)
Trainability	Moderate — independent streak	High — eager to work
Barking	Frequent, deep for their size	Alert barker, moderate frequency
Family Fit	Good with older children; can be possessive	Good with families; may chase small pets

Both breeds share a tenacious, alert nature and were historically working dogs — Dachshunds for badger hunting in Germany (the name literally means "badger dog"), and Rat Terriers for farm pest control in the United States. This shared heritage means the Datsun mix almost always inherits strong hunting instincts and a confident, sometimes stubborn personality.

How Big Will a Datsun Rat Terrier Mix Get?

Size is one of the more variable traits in this cross, particularly because Dachshunds come in two distinct size varieties (miniature and standard) and Rat Terriers also have miniature and standard classifications.

Datsun Rat Terrier Mix: Expected Size Ranges

Parent Combination	Expected Weight	Expected Height
Mini Dachshund × Mini Rat Terrier	8–16 lb (3.6–7.3 kg)	7–12 in (18–30 cm)
Mini Dachshund × Standard Rat Terrier	12–22 lb (5.4–10 kg)	9–15 in (23–38 cm)
Standard Dachshund × Standard Rat Terrier	16–28 lb (7.3–12.7 kg)	10–16 in (25–41 cm)

The most common pairing breeders use is a miniature Dachshund with a miniature or standard Rat Terrier, producing puppies in the 10–20 lb (4.5–9 kg) range. Body shape varies considerably: some puppies inherit the Dachshund's elongated spine and short legs, while others get the Rat Terrier's more proportional, athletic build. Many land somewhere in between — slightly longer-bodied than a Rat Terrier but taller-legged than a Dachshund.

Puppies typically reach their adult weight by 10–12 months, though they may continue filling out through 18 months.

Coat Types, Shedding, and Grooming Needs

Coat inheritance depends heavily on which Dachshund variety (smooth, longhaired, or wirehaired) is in the pedigree, combined with the Rat Terrier's short, dense coat.

Is the Datsun Rat Terrier mix hypoallergenic? No. Neither parent breed is considered hypoallergenic or low-shedding. Both Dachshunds and Rat Terriers shed moderately and produce normal levels of dander. If you have dog allergies, this mix is unlikely to be a good fit. Consider spending time with the specific puppy before committing, as individual allergen production varies.

Grooming routine for the most common smooth-coat Datsun:

• Weekly brushing with a rubber grooming mitt or soft bristle brush
• Bathing every 4–8 weeks using a gentle, dog-formulated shampoo (e.g., Earthbath Oatmeal & Aloe or Burt's Bees for Dogs)
• Nail trimming every 2–3 weeks — small breeds are prone to overgrown nails causing gait issues
• Ear cleaning weekly, especially if ears are floppy (inherited from the Dachshund side), as drop ears trap moisture and increase infection risk
• Daily tooth brushing or dental chews — both parent breeds are prone to dental disease

Temperament: What to Expect From a Datsun Mix

The Datsun Rat Terrier mix tends to be a bold, affectionate, and highly alert small dog. But temperament is where individual variation is most pronounced, and prospective owners should prepare for a range of outcomes.

Best-case temperament scenario: You get a confident, playful companion who bonds deeply with their family, greets visitors with curiosity rather than fear, enjoys training sessions, and adapts well to apartment or house living with adequate daily exercise. This dog is clever enough to learn tricks and focused enough to earn a Canine Good Citizen title with consistent positive reinforcement training.

Challenging temperament scenario: You get a dog with the Dachshund's stubborn independence combined with the Rat Terrier's high prey drive and reactivity. This dog may bark excessively at passing stimuli, chase cats or small dogs, dig obsessively in the yard, resist recall commands when they've spotted something interesting, and show resource guarding or wariness with strangers. Without early socialization, fear-based reactivity can develop.

Key temperament traits to prepare for regardless of where your individual dog falls on the spectrum:

• High prey drive: Both breeds were developed to chase and kill small animals. Expect that off-leash reliability will be difficult to achieve, and small pets (hamsters, rabbits, cats) may be at risk.
• Alertness and vocalization: This mix makes an excellent watchdog but may need training to manage nuisance barking, especially in apartments.
• Digging instinct: Dachshunds dig to enter burrows; Rat Terriers dig to pursue prey. Provide a designated digging area or expect yard damage.
• Strong bonding: Datsuns often attach closely to one person and may develop separation anxiety if left alone for long periods without gradual conditioning.
• Intelligence with independence: They learn quickly but may choose not to obey if something more interesting is happening. Force-free, reward-based training using high-value treats (like freeze-dried liver or chicken) works best. Avoid aversive methods — these dogs are sensitive despite their tough exterior and will shut down or become defensively reactive with harsh handling.

Health Considerations: Hybrid Vigor vs. Reality

A common claim about designer mixes is that "hybrid vigor" eliminates health problems. The reality is more nuanced. While crossbreeding can reduce the risk of conditions caused by recessive genes that both parents carry (because the gene pools are different), it does not protect against structural or polygenic conditions that affect both parent breeds. A Datsun can inherit health issues from either side of the pedigree.

According to the Merck Veterinary Manual, here are the inherited conditions to screen for and monitor:

Datsun Rat Terrier Mix: Health Conditions to Watch

Condition	Inherited From	Prevalence/Notes	Prevention/Screening
Intervertebral Disc Disease (IVDD)	Dachshund	Up to 25% of Dachshunds develop IVDD in their lifetime. Dogs inheriting the long-back, short-leg build are at highest risk.	Avoid jumping from furniture, use ramps, maintain lean body weight. Ask breeder about parental spine history.
Patellar Luxation	Both breeds	Common in small breeds. Kneecap slips out of position, causing intermittent lameness.	Vet screening at annual exams. Grade I–II may be managed conservatively; Grade III–IV often requires surgery ($1,500–$3,500).
Dental Disease	Both breeds	Small breeds develop tartar and periodontal disease earlier than larger dogs, often by age 3.	Daily tooth brushing, professional cleanings under anesthesia every 1–2 years ($300–$800 per cleaning).
Legg-Calvé-Perthes Disease	Both breeds	Degeneration of the femoral head, typically appearing between 4–12 months of age. Causes hind-limb lameness.	Early veterinary diagnosis via X-ray. Surgical treatment (femoral head ostomy) has good outcomes in small dogs.
Cardiac Conditions (Mitral Valve Disease)	Dachshund	Progressive heart valve degeneration common in aging small breeds.	Annual cardiac auscultation from age 7+. Medications can manage progression.
Allergies (Atopic Dermatitis)	Rat Terrier	Rat Terriers are predisposed to environmental and food allergies, causing itchy skin, ear infections, and paw licking.	Identify and avoid triggers. Apoquel or Cytopoint may be prescribed by your vet ($50–$150/month).
Eye Conditions (PRA, Cataracts)	Both breeds	Progressive retinal atrophy and juvenile cataracts can occur in both breeds.	Ask breeder for CERF/OFA eye clearances on parent dogs.

Recommended health screenings for Datsun puppies: Ask your breeder for documentation of parental health testing, including OFA (Orthopedic Foundation for Animals) patella evaluations, cardiac exams, and ophthalmologist evaluations. For the Dachshund parent, ask about IVDD history in the lineage. A responsible breeder will share these results willingly.

Always consult your veterinarian about an appropriate preventive care schedule, including core vaccinations (DHPP, rabies), parasite prevention, and spay/neuter timing for your individual dog.

Training, Exercise, and Daily Care

Datsuns need 30–60 minutes of daily exercise, split between structured walks and free exploration. Despite their small size, both parent breeds are working dogs with real stamina. A bored, under-exercised Datsun will find its own entertainment — usually through barking, digging, or destructive chewing.

Exercise recommendations:

• Two 15–20 minute leash walks daily, with sniffing time allowed (mental stimulation matters as much as physical)
• Indoor puzzle feeders and snuffle mats for mental enrichment — Kong Wobbler or Outward Hound Nina Ottosson puzzles work well for this intelligent mix
• Supervised play sessions in a securely fenced yard (minimum 6-foot fence — Rat Terriers are accomplished climbers and jumpers)
• Avoid repetitive high-impact activities like agility jumps or long stair climbing, especially for dogs with the Dachshund body type, to protect the spine

Training approach: Use positive reinforcement methods exclusively — food rewards, play rewards, and praise. Both breeds respond poorly to force-based methods. Start socialization early (between 8–16 weeks, following your vet's vaccination guidance) to reduce the risk of fear-based reactivity. Enroll in a force-free puppy class that emphasizes exposure to novel people, surfaces, sounds, and other dogs in a controlled setting.

Crate training is strongly recommended for this mix. Dachshunds are prone to separation anxiety, and Rat Terriers can be destructive when bored. A properly introduced crate (never used as punishment) provides a safe den and prevents property damage during alone time. Start with short durations (5–10 minutes) and gradually build up.

Cost: What You'll Pay for a Datsun Rat Terrier Mix

As a relatively niche designer cross, Datsun Rat Terrier mix pricing varies based on breeder reputation, location, and parental health testing.

Datsun Rat Terrier Mix: Cost Breakdown

Expense Category	Estimated Cost
Puppy Purchase (from breeder)	$400–$1,200
Adoption (rescue/shelter)	$50–$350
First-Year Veterinary Care (vaccines, spay/neuter, microchip)	$500–$1,000
Annual Ongoing Care (food, preventives, checkups)	$600–$1,200/year
Grooming (smooth coat — mostly DIY)	$0–$200/year
Emergency Fund Recommendation	$1,500–$3,000 reserve or pet insurance ($25–$50/month for small breeds)

Breeder vs. rescue availability: Dedicated Datsun breeders are uncommon — most puppies come from small hobby breeders who cross their own Dachshund and Rat Terrier. When searching, prioritize breeders who health-test both parents, raise puppies in-home with early neurological stimulation, and offer a take-back guarantee. Avoid pet stores or online sellers who cannot provide parental health documentation.

Rescue options exist through Dachshund-specific rescues (like AKC-affiliated breed rescues), Rat Terrier rescue networks, and general small-breed rescues. Mixed-breed adults are often available for $50–$350 and come spayed/neutered, vaccinated, and sometimes microchipped. Adopting an adult also lets you see the dog's established temperament rather than guessing from a puppy.

Is This Mix Right for You?

The Datsun Rat Terrier mix suits a specific type of household. Here's a practical fit assessment:

This mix is a good fit if you:

• Have experience with terriers or strong-willed small dogs
• Live in a house with a secure yard or an apartment where you can commit to daily leash walks
• Are home most of the day or can arrange midday visits (separation anxiety risk)
• Don't have small pets like cats, rabbits, or rodents (high prey drive)
• Want an alert, entertaining companion with a big personality
• Have older children (age 8+) who understand how to handle small dogs gently — the long back of a Dachshund-type build is fragile and can be injured by rough handling or being dropped

Consider a different breed if you:

• Want a reliably off-leash dog for hiking (prey drive makes this risky)
• Need a quiet dog for close-quarters apartment living (barking tendency)
• Have very young children who may handle a small dog roughly
• Want a low-energy lap dog — Datsuns have real exercise needs despite their size
• Are a first-time owner unprepared for terrier-level stubbornness and training commitment

Frequently Asked Questions

What two breeds make up the Datsun Rat Terrier mix?

The Datsun is a cross between a Dachshund (any variety — smooth, longhaired, or wirehaired; miniature or standard) and a Rat Terrier (miniature or standard). The specific parent varieties influence the puppy's eventual size, coat, and body proportions.

How big will a Datsun Rat Terrier mix get?

Most Datsuns weigh between 10–20 lb (4.5–9 kg) and stand 9–15 inches (23–38 cm) tall at the shoulder. Size depends on whether miniature or standard parents were used. Ask the breeder for parental weights for the best estimate.

What is the temperament of a Datsun mix?

Expect an alert, intelligent, affectionate dog with a strong prey drive and an independent streak. They bond closely with their families and make excellent watchdogs. Early socialization and consistent positive reinforcement training are essential to prevent reactivity and excessive barking.

Is the Datsun Rat Terrier mix hypoallergenic or low-shedding?

No. Neither parent breed is hypoallergenic. Most Datsuns have short, smooth coats that shed moderately year-round with seasonal increases. This mix is not suitable for people with dog allergies.

What health issues might a Datsun inherit?

The most significant concern is Intervertebral Disc Disease (IVDD), inherited from the Dachshund side, particularly in dogs with elongated spines. Other conditions include patellar luxation, dental disease, Legg-Calvé-Perthes disease, cardiac issues, and allergies. Reputable breeders screen parent dogs to reduce risk.

How much does a Datsun Rat Terrier mix cost?

Expect to pay $400–$1,200 from a breeder, or $50–$350 through a rescue. First-year veterinary costs typically run $500–$1,000, with ongoing annual care at $600–$1,200. Pet insurance for small breeds averages $25–$50 per month and is recommended given the IVDD risk.

Do Datsun Rat Terrier mixes get along with cats?

It depends on the individual dog and early socialization. Both parent breeds have high prey drives, so some Datsuns will chase cats relentlessly. Others raised alongside cats from puppyhood may coexist peacefully. Never leave a Datsun unsupervised with cats or small animals until you're confident in their behavior — and even then, proceed with caution.

How long do Datsun Rat Terrier mixes live?

With proper care, expect a lifespan of 12–16 years. Both parent breeds are generally long-lived small dogs. Maintaining a lean body condition score, regular dental care, and preventive veterinary visits are the biggest factors in longevity.