Mutt dogs, also known as mixed-breed dogs, are often misunderstood. They're not just a mix of different breeds, but rather a unique combination of characteristics that make each one special.
In fact, studies have shown that mutt dogs are just as intelligent as purebred dogs, with one study finding that 75% of mutt dogs scored above average on an intelligence test.
Mutt dogs are also known for their adaptability, as they can thrive in a variety of living situations. They're often described as "easy-going" and can make great companions for families with children or for people who live in small apartments.
Purebred dogs, on the other hand, have a fixed set of characteristics that are determined by their breed. This can make them more predictable, but it also means they may be more prone to certain health problems.
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Pros and Cons of Cross-Breeding
Cross-breeding dogs can be a great way to create a unique and healthy pup, but it's not without its risks. Variety is one of the biggest advantages of cross-breeding, as it allows for the creation of a wide range of designer dogs.
With cross-breeding, the likelihood of pre-existing genetic diseases being inherited is limited, which can increase the strength and vigour of crossbred puppies. This is because the genetic diversity of two purebred parents can help to mask inherited diseases.
However, there's no scientific evidence to support the claim that cross-breeding produces healthier, stronger dogs. In fact, it could potentially lead to serious genetic entanglement issues.
Predicting the size of a crossbred puppy is much more difficult than predicting the size of a purebred puppy, which can lead to difficulties when it comes to delivering them.
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Health Considerations
Purebred dogs have a reputation for poorer health than mutts, but it's not that simple. In fact, some vets say that mutts are more robust and are seen less often for inherited disorders.
Reputable breeders of both purebred and designer dogs argue that they can exclude dogs from their breeding programs that carry genetic diseases, guaranteeing a healthy dog. However, this isn't always the case, as some breeders may use dogs with heritable defects to produce volumes of puppies.
The prevalence of genetic disorders in both purebred and mixed-breed dogs varies depending on the specific disorder. For example, purebred dogs are more likely to have dilated cardiomyopathy, elbow dysplasia, cataracts, and hypothyroidism, while mixed-breed dogs are more likely to have ruptured cranial cruciate ligament.
Here are some genetic disorders that affect purebreds more than mutts:
- Aortic stenosis
- Dilated cardiomyopathy
- Elbow dysplasia
- IVDD
- Hypoadrenocorticism
- Atopy / allergic dermatitis
- Bloat
- Cataracts
- Epilepsy (total)
- Portosystemic shunt
On the other hand, mixed-breed dogs are more likely to have ruptured cranial cruciate ligament. It's worth noting that some disorders, such as hip dysplasia, are equally prevalent in both purebred and mixed-breed dogs.
Overall, the health of a dog depends on many factors, including its parents, care, and lifestyle. While breed may play a role, it's not the only factor to consider when evaluating a dog's health.
Cost and Comparison
Buying a mutt dog from a shelter can save you cash early on because costs like spay/neuter and vaccinations have already been done when you adopt.
Generally, you'll pay more for a purebred dog than a mixed-breed dog when buying from a breeder.
Pet insurance can save you a lot of money if your dog has an accident, and mixed-breed dog owners can expect to pay a lower insurance premium than purebred dog owners.
Research shows that purebred dogs are at a higher risk for cancer than mixed breeds, which means you could end up paying more for insurance.
The overall lifespan of your future pack member is something to consider, and mixed-breed dogs live approximately 1.2 years longer than purebreds of the same size.
Small breeds tend to live longer than large breeds, and their smaller size also means they eat less, which can save you money on food costs.
Research and Implications
According to Dr. Ginger Benham, a veterinarian at Northeast Animal Hospital, brachycephalic syndrome is a severe congenital disorder that can cause issues throughout a dog's life, particularly in breeds like pugs, French bulldogs, and English bulldogs.
Brachycephalic syndrome is just one of many health issues that can affect purebred dogs. Dr. Benham also notes that King Charles Cavalier Spaniels are virtually guaranteed to get mitral valve endocardiosis by 8-10 years of age.
Researchers have found that purebred dogs are more likely to inherit certain genetic disorders, with 10 out of 24 genetic disorders studied being significantly more common in purebreds.
What Research and Experience Tell Us
Research suggests that purebred dogs are more prone to certain genetic disorders, with 10 out of 24 genetic disorders found in over 27,000 dogs being significantly more common in purebreds.
Dr. Ginger Benham, a veterinarian, has seen Brachycephalic syndrome, a severe congenital disorder, in nearly every pug, French bulldog, and English bulldog she has treated.
A study of over 90,000 purebred and mixed-breed dogs found that purebreds are more likely to have certain genetic disorders, but not all of them.
Researchers did not find a significant difference between purebred and mixed-breed dogs in 13 out of 24 genetic disorders studied.
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However, mixed-breed dogs were more likely to have ruptured cranial cruciate ligaments, a common injury.
The results of this study are not conclusive, and many experts disagree with the conclusion that purebreds are always unhealthier.
Dr. Benham notes that King Charles Cavalier Spaniels are virtually guaranteed to develop mitral valve endocardiosis by 8-10 years of age, a common heart disease in small and medium dogs.
Von Willebrand's disease is also more common in purebred Doberman pinschers, highlighting the potential health risks associated with certain breeds.
Implications for Dog Owners
As a dog owner, it's essential to consider many factors when choosing a dog, including environment, lifestyle, social interactions, and physical activity that will be available to the dog.
Dog breed is only one aspect of pet health to consider when creating a pet's care plan or researching what kind of dog to adopt.
Planning for both preventive veterinary care and medical care as the dog ages is also prudent.
Dental disease, allergies, and osteoarthritis are among the most common conditions for all dogs.
Regular exercise and maintaining lean body weight may help delay, prevent, or lessen the impact of osteoarthritis.
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Designing Healthier Dogs
Purebred dogs were often bred from a small gene pool, which led to inherited problems like congenital heart disease or hip issues becoming rampant in the breed.
In an attempt to create healthier dogs, breeders are now intentionally crossbreeding purebred dogs, creating a third type of dog: "designer dogs."
The theory behind designer dogs is that crossing two or more purebred dogs will create a healthier dog by enlarging the gene pool.
However, this is not the same as a traditional mutt, which is a dog with parents that are not of the same breed and is usually bred without intention.
Designer dog breeders are creating mixed breeds with specific traits, just like purebred breeders, but with the goal of making the offspring hypoallergenic.
Some breeders are trying to create a healthier breed by combining the best traits of different breeds, but the question remains: are they successful?
Frequently Asked Questions
What are the cons of having a mutt?
Unknown breed mix can lead to unpredictable size and potential behavior issues, making it harder to anticipate a dog's needs and traits
Sources
- designer dogs (goodhousekeeping.com)
- An extensive 15-year study (instituteofcaninebiology.org)
- New Study Dispels Myth That Purebred Dogs Are More Prone ... (tamu.edu)
- Mutts and Purebreds: Is One Healthier Than the Other? (northeastanimalhospital.com)
- The Great Debate: Are Mutts Healthier Than Purebreds? (vetstreet.com)
- Are Mixed Breed Dogs (Mutts) Healthier Than Purebreed ... (scampsandchamps.co.uk)
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