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Cane Corso

Lifespan
8.1 years
95% CI 6.5 to 9.5 · McMillan 2024, n=202
Most carried variant
Degenerative Myelopathy
2.1% of 145 tested · Donner 2023
Behind this page
18 dogs
in the atlas · an early sketch · 145 tested for variants
Also carried:Canine Multifocal Retinopathy 1 · 1.4%

Cane Corsos have a cited life expectancy of 8.1 years (McMillan 2024 / VetCompass, n=202, 95% CI 6.5 to 9.5). The most carried tested variant is Degenerative Myelopathy, in 2.1% of 145 Cane Corsos tested (Donner 2023), then Canine Multifocal Retinopathy 1 (1.4%). Only 18 dogs stand behind the atlas figures here, so little is known yet.

Cane Corso
Photo: Claudio Domiziani · CC BY-SA 2.5 · Wikimedia

Also known as Cane Corso Italiano, Italian Corso, Italian Corso Dog, and Italian Mastiff.

See in the atlas → From CanVAS
Mendelian-disease genetics

What genetic diseases do Cane Corsos carry?

From a panel of 250 Mendelian-disease variants screened in 1,054,293 dogs (Donner et al. 2023), Cane Corsos carry 4 of them at observable frequency. Carrier frequency is not clinical risk. Most recessive variants require two copies for disease expression; many dominant variants show incomplete penetrance. Read this as a population fingerprint of what's in the gene pool, not a per-dog prediction.

Degenerative Myelopathy (DM)
Autosomal recessive (Incomplete penetrance)
low 2.1%
n = 145 dogs · 1 variant tested · OMIA:000263-9615 · omia.org →
SOD1what this gene does

SOD1 is a gene that helps protect cells from damage caused by harmful molecules called free radicals.

For your dog: If your dog is a carrier of SOD1 variants, it's worth discussing with your vet, but remember carrier status doesn't mean your dog will get the disease.

Canine Multifocal Retinopathy 1 (Discovered in Mastiff-related breeds; CMR1)
Autosomal recessive
low 1.4%
n = 145 dogs · 1 variant tested · OMIA:001444-9615 · omia.org →
BEST1what this gene does

BEST1 is a gene that helps maintain the health of the retina, the light-sensitive layer at the back of the eye. It plays a role in keeping the cells in the retina functioning properly.

For your dog: If your dog is from a breed known to carry BEST1 variants, it’s worth discussing retinal health with your vet, especially if you notice any vision changes.

Hyperuricosuria (HUU)
Autosomal recessive
low 0.69%
n = 145 dogs · 1 variant tested · OMIA:001033-9615 · omia.org →
SLC2A9what this gene does

SLC2A9 is a gene that helps regulate uric acid levels in a dog's body. It plays a role in how the kidneys handle this substance.

For your dog: If your dog is one of the breeds known to carry this gene variant, it’s worth discussing with your vet to understand any potential urinary health concerns.

Cone-Rod Dystrophy (cord1-PRA/crd4)
Autosomal recessive (Incomplete penetrance)
low 0.34%
n = 145 dogs · 1 variant tested · OMIA:001432-9615 · omia.org →
RPGRIP1what this gene does

RPGRIP1 is a gene involved in the function of photoreceptor cells in the eye, which help dogs see in different light conditions.

For your dog: If your dog belongs to a breed known to carry RPGRIP1 mutations, it’s worth discussing with your vet to understand the risks and monitor eye health.

Source: Donner J et al. 2023. Genetic prevalence and clinical relevance of canine Mendelian disease variants in over one million dogs. PLOS Genetics 19(2):e1010651 · Evidence: Limited (DTC ascertainment, tag-SNP proxy) · Confounding MEDIUM · License CC-BY-4.0 · Phene IDs from OMIA (Sydney School of Veterinary Science, The University of Sydney; DOI 10.25910/2AMR-PV70).
Sample size in this breed: 145 dogs from the Donner 2023 cohort.
In plain terms

What these results mean for a Cane Corso

Degenerative myelopathy (DM)

2.1% of Cane Corsos in the Donner 2023 cohort carried it (n=145).

  • DM is a loss of function in the spinal cord that begins in adulthood and progresses to paralysis of the back legs. There is no treatment that stops it.
    OMIA 000263-9615

    “This is an adult onset degeneration of the spinal cord that progresses to paraplegia and tetraparesis. There is no successful treatment. A genetic test is available.” OMIA 000263-9615

  • Two copies of the SOD1 variant mean at risk, not affected. Some dogs with two copies never show signs.
    OMIA 000263-9615

    “some homozygous mutant dogs had no signs of degenerative myelopathy, which suggests incomplete penetrance or other causative loci” OMIA 000263-9615

  • One copy makes a dog a carrier. In the study that found the variant, every affected dog tested had two copies.
    OMIA 000263-9615

    “All affected dogs tested were homozygous mutant.” OMIA 000263-9615

What to do
A DNA result is not a diagnosis. Take the result, and any change in how the dog walks, to a veterinarian.

No test, or a mix
Without a test nobody can say how many copies a dog has. A breed's carrier frequency describes the breed, not this dog.

Which Mendelian variants matter most for Cane Corsos?

The Mendelian-disease table above lists variants screened in 145 Cane Corsos (Donner 2023). Four variants appear in the breed. All four appear at low carrier frequencies in the tested cohort. The honest summary is that Cane Corsos currently show fewer high-impact Mendelian variants than most large breeds in the testing cohort.

Canine Multifocal Retinopathy 1 (CMR1)

Canine Multifocal Retinopathy 1 is an autosomal-recessive retinal condition discovered in Mastiff-related breeds. In Cane Corsos the figure below is a carrier frequency from Donner 2023, not a case series in the breed. The disease causes multiple focal retinal lesions; most affected dogs retain functional vision, though lesion severity varies. Carrier frequency in the tested cohort was 1.4% (n=145). No phenotype-confirmed affected dogs appeared in the Donner S4 dataset (0/1 at-risk dogs), which suggests either very low penetrance or limited expression in this breed. Testing is available.

Hyperuricosuria (HUU)

Hyperuricosuria in Cane Corsos is an autosomal-recessive disorder of purine metabolism. Affected dogs excrete excess uric acid in urine and are predisposed to urate-stone formation in the bladder or kidneys. Carrier frequency in Cane Corsos is 0.69% (n=145). No phenotype-confirmed affected dogs appeared in the Donner cohort, and the condition is manageable with diet and monitoring when it does occur. Testing is available.

Cone-Rod Dystrophy (cord1-PRA/crd4)

Cone-rod dystrophy in Cane Corsos is an autosomal-recessive retinal dystrophy with incomplete penetrance. The disease affects cone and rod photoreceptors and can lead to progressive vision loss. Carrier frequency is 0.34% (n=145). Testing exists through commercial panels and breed-specific labs.

How should I test my Cane Corso?

The testing landscape for Cane Corsos is thinner than for more numerically dominant giant breeds. A panel covering DM, CMR1, HUU, and cord1-PRA captures the variants currently known in the breed. Work with your veterinarian and the American Cane Corso Association or breed-club health committee to confirm which panel best fits your breeding or selection goals.

What should I feed a Cane Corso?

Cane Corsos go from roughly 1 pound at birth to 100 to 130 pounds at adulthood. The growth rate is so fast that the calcium-to-phosphorus ratio in the puppy formula is the single most important food decision an owner makes. This matters more than breed-specific genetic disease because skeletal deformities from overfeeding calcium during growth can be permanent.

Puppy feeding for giant breeds is not a guessing game. The National Research Council recommends a calcium-to-phosphorus ratio between 1.1:1 and 2:1 for large-breed puppies, with absolute calcium levels kept between 0.8% and 1.6% on a dry-matter basis (NRC 2006). Cane Corso puppies fed excess calcium develop abnormal bone development, including osteochondrosis and angular-limb deformities (NRC 2006). A commercial large-breed puppy formula or a home-prepared diet balanced by a veterinary nutritionist is the responsible path. Avoid oversupplements and calcium-heavy treats during the growth phase.

Adult maintenance shifts to joint support and weight management. The breed’s low Mendelian-disease burden means the feeding priority for adults is preventing obesity and supporting joint longevity. Cane Corsos are mastiff-type dogs; activity levels vary by individual, but the breed is not classified as high-energy. A maintenance kibble formulated for large-breed adults, portioned to keep the dog lean (ribs visible, spine palpable but not prominent), is appropriate. The breed’s nearest genetic relatives (Neapolitan Mastiff, Mastiff) all benefit from controlled weight into old age.

Breed-specific cardiac screening is recommended before major diet changes. While the Mendelian cardiac-risk variants in this page do not include dilated cardiomyopathy risk, the breed’s size and mastiff heritage mean many individual dogs carry breed-typical cardiac risks. An echocardiogram or veterinary cardiac assessment before committing to grain-free or other restrictive diets is prudent. The FDA’s taurine-related DCM signal (2018 advisory, Adin et al. 2019) does not specifically flag Cane Corsos, but the breed’s size and unknown individual cardiac status make the conservative default a grain-inclusive, taurine-verified formulation.

What we don’t know

The Cane Corso’s small testing cohort (n=145) is the dominant limitation. Variants detected in other mastiff-type breeds may exist in Cane Corsos at lower frequencies than the current panel can detect. The substrate facts do not tell us about polygenic hip dysplasia heritability, elbow dysplasia prevalence, or the true carrier frequency of DM or other variants in the unscreened majority of the breed. The Orthopedic Foundation for Animals maintains health statistics by breed, but the Cane Corso’s sample size on OFA is modest compared to larger-registry breeds.

Cancer rates in Cane Corsos are not well-characterized in the published literature. Large and giant breeds carry elevated cancer burden, but the breed-specific epidemiology is not settled.

The breed’s founder cohort is small (Hayward2016=9, Parker=5, Spatola=4). This concentration of genetics may mean unmapped variants run at higher frequency than the current test panel can detect. Expanding the tested cohort would clarify the breed’s true Mendelian-disease burden.

Frequently asked questions about Cane Corsos

Are Cane Corsos healthy? Cane Corsos show lower Mendelian-disease burden than many large breeds in the current testing cohort. The dominant health priorities are skeletal development during growth, joint longevity, and cardiac screening. The breed’s small testing sample (n=145) means less common variants may not yet be characterized.

What is the most common genetic disease in Cane Corsos? Degenerative Myelopathy (DM) has the highest carrier frequency at 2.1% (Donner 2023, n=145). Because inheritance is autosomal recessive with incomplete penetrance, only dogs inheriting two copies are at risk, and not all of those will develop clinical signs. The other three variants (CMR1, HUU, cord1-PRA) are rare.

Should I do a DNA test on my Cane Corso? For breeding stock, testing for DM is recommended. A panel covering the four variants listed above captures the known Mendelian disease burden. Work with your breed club to determine which lab and panel best serves your breeding goals.

How large do Cane Corsos grow? Adult Cane Corsos typically weigh 100 to 130 pounds and stand 23.5 to 27.5 inches at the shoulder (AKC breed standard). The rapid growth from birth to adulthood (roughly 1 pound to 100+ pounds) means controlled puppy nutrition is critical.

What is the best diet for a Cane Corso puppy? A large-breed puppy formula with a calcium-to-phosphorus ratio between 1.1:1 and 2:1, absolute calcium between 0.8% and 1.6% dry matter (NRC 2006). Oversupplenting calcium or feeding adult formulas during the growth phase causes permanent skeletal damage. A veterinary nutritionist can balance a home-prepared diet if that is your preference.

Are Cane Corsos good family dogs? Cane Corsos are loyal, confident dogs bred as guardians. They require early socialization, consistent training, and an owner who understands the breed’s protective temperament. They are not a breed for first-time dog owners.

How long do Cane Corsos live? The breed’s median lifespan is not well-characterized in the published literature. Large and giant breeds typically live 8 to 8.1 years (McMillan 2024 / VetCompass), though breed-specific data for Cane Corsos remain limited in the published literature. Individual longevity depends on health screening, weight management, and early detection of age-related conditions.

Can Cane Corsos tolerate heat? Cane Corsos are large, heavy-boned dogs; size alone increases heat load, and owners should limit strenuous activity in warm weather. Their size and modest exercise needs mean they should avoid strenuous activity during warm weather. Access to shade, fresh water, and cool rest areas is essential year-round.

Names & origins

Other names

The Cane Corso is also recorded as Cane Corso Italiano, Italian Corso, Italian Corso Dog, and Italian Mastiff.

Identified as Cane Corso (VBO:0200712) in the Vertebrate Breed Ontology (Mullen et al. 2025, CC-BY 4.0) · registry IDs FCI 343 · iDog 62.

For researchers Population genetics, disease models and every recorded condition Open the research detail for the Cane Corso
What the atlas says about Cane Corso

In the atlas, the Cane Corso clusters consistently as Cane Corso (100% of the 18 dogs here). Genetic diversity is high (mean heterozygosity 0.3567), reflecting either a mixed-breed cluster or breeds with broad genetic backgrounds.

Mean heterozygosity is 0.357, notably high, indicates broad genetic background. Only 18 dogs of this breed in the atlas, modestly sampled.

Genetic dimensions · CanVAS atlas

What the atlas genotypes say about Cane Corso

Computed from the 14,478 CanVAS dogs in the Atlas, on an imputed genotype backbone: 77,215 directly typed sites per dog, imputed to 9.67 million variants.

The confidence below counts dogs, not reads: it is the size of the sample, and it is separate from how the genotypes were measured.

These figures are computed from only 18 Cane Corsos in the atlas. Treat them as provisional. They sharpen as more dogs are added.
Dogs in the Atlas
18Founders
9 from Hayward2016, 5 from Parker, 4 from Spatola
Genetic diversity

Not enough dogs in the atlas yet (n=18) for a reliable diversity figure. It fills in as more are added.

Mean heterozygosity across the breed. Too few dogs in this breed (<20) to rank.
What does genetic diversity mean?

How varied a breed's gene pool is — the share of gene spots where a typical dog of the breed carries two different versions rather than two identical ones.

How to read it: Higher = more diverse. Among well-sampled breeds it ranges roughly 0.22 (least diverse) to 0.33 (most diverse).

Diversity is a strength, not a verdict on any individual dog. Lower diversity means it's worth paying attention to recessive-risk testing — not that a dog is doomed.

Cluster structure

Not enough dogs in the atlas yet (n=18) to resolve cluster structure. It fills in as more are added.

What does within-breed variation mean?

How much individual dogs within the breed differ from each other genetically.

How to read it: Higher = more internal variety among individuals of the breed.

Sensitive to how many dogs of the breed we've sampled.

Related breeds
In the Working group
Explore the full lineage map →
VBO foundation stock (breeding records) · AKC breed group
Relatedness is documented lineage + kennel family. Genetic-ancestry distance measures diversity, not kinship, so it isn't used here.
How long they live
8.1years (life expectancy)
95% CI 6.5–9.5 · VetCompass, McMillan 2024, n=202. source
What does typical lifespan mean?

The median age dogs of the breed tend to reach.

How to read it: Higher = longer-lived. Compare to longevity-for-size to see whether it's just a size effect.

Drawn from population lifespan records; individual dogs vary widely with care, genetics, and luck.

n = 18 dogs · low sample · CanVAS (Brundage 2026) · Sniff Atlas
A gift to human medicine

Cane Corsos are a natural model for human disease

Because the same genes cause the same conditions across species, the inherited conditions documented in Cane Corsos help researchers understand, and work toward treating, the human diseases they model. This is the dog advancing human medicine. The breed models the human disease; it does not have it, and this is not a prediction for your dog.

Human equivalents via OMIA → Mondo / OMIM. Model-of, not identity. The named gene is the canine locus, not a claim that a pet has the human disease.
Documented in OMIA

Every condition recorded in the Cane Corso

Beyond the testable carriers above, OMIA's literature catalogue records 5 genetic conditions in the Cane Corso, 3 of which have a known human equivalent. This is the documented landscape across all Cane Corsos ever studied, not a prediction for any one dog.

Online Mendelian Inheritance in Animals (OMIA); Nicholas, Tammen & Sydney Informatics Hub, DOI 10.25910/2AMR-PV70
Documented in the breed's literature is not carrier status and not a forecast for an individual dog. Human equivalents are mapped via Mondo/OMIM. Carrier frequencies (above) are the separately-measured testable subset (Donner 2023).
The data behind this page

Where every number on this page came from.

This page draws on three primary data sources. Carrier frequencies for the Mendelian section come from Donner et al. 2023 (CC-BY-4.0). We grade these data at evidence Limited because the cohort is a direct-to-consumer ascertainment, which biases toward owners who chose to test their dogs. The panel also uses tag-SNP proxies for some variants rather than direct causal-variant assays. Limited is a study-design grade, not a quality grade: the Donner cohort is the largest open canine-genotype dataset in existence and we are grateful for it. We rate the confounding MEDIUM.

Population-genetic dimensions (heterozygosity, intra-breed PCA distance, nearest neighbors, trait-locus frequencies) come from CanVAS (Brundage 2026), harmonized through the Sniff Atlas. The exact release date and verification commit are pinned at the bottom of the page so a researcher can trace a number back to a specific snapshot. The disease-gene-variant graph comes from OMIA (Online Mendelian Inheritance in Animals; Nicholas, Tammen, and the Sydney Informatics Hub at the Sydney School of Veterinary Science, The University of Sydney; retrieved April 2026, DOI 10.25910/2AMR-PV70).

What this page does not yet have. Inheritance modes and per-disease penetrance evidence from Donner 2023 are in the structured data for every variant the panel covers. Mondo, OMIM, Ensembl, and HGNC cross-references live on the gene and disease pages this page links to, rather than being repeated here. What is still absent from this breed page is anything not in the cited panel, and each such gap carries its cause where it appears.

How to cite this page. The computed dimensions on this page are derived from the open Sniff Atlas v1.0.1 (Gehring 2026, doi:10.5281/zenodo.20566358, CC-BY 4.0). Full citation formats including BibTeX, RIS, and CITATION.cff at sniff.world/cite.

Some things about living with a cane corso never make it into a database. Add what you know as a Keeper, in your words →

Lived experience, kept beside the science.
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Close to a cited number

We can already place this breed on the atlas. We hold genetic diversity for n=18 of this breed in the atlas. Our floor for showing a cited rate is n=20. That is 2 more of this breed in our atlas, not in a published study.

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References
  1. Donner J, Freyer J, Davison S, Anderson H, Blades M, Honkanen L, et al. (2023). Genetic prevalence and clinical relevance of canine Mendelian disease variants in over one million dogs. PLOS Genetics 19(2):e1010651. doi:10.1371/journal.pgen.1010651
  2. Brundage DM (2026). CanVAS: A Harmonized and Imputed Canine Variant Atlas. bioRxiv. doi:10.64898/2026.04.13.718238
  3. Nicholas, F.W., Tammen, I., & Sydney Informatics Hub. (2026). Online Mendelian Inheritance in Animals (OMIA) [dataset]. The University of Sydney. https://omia.org. doi:10.25910/2AMR-PV70 (retrieved April 2026).
Last updated
Sources: CanVAS (Brundage 2026) · Donner 2023 · OMIA