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In the United States, the term mixed-breed is a favored synonym over mongrel among people who wish to avoid negative connotations associated with the latter term. [2] The implication that such dogs must be a mix of defined breeds may stem from an inverted understanding of the origins of dog breeds.
They found that purebreds were more likely than mutts to have any of 10 different genetic conditions—everything from cataracts to dermatitis to bloat (a distended stomach condition that can be ...
In 2013, a study found that mixed breeds live on average 1.2 years longer than pure breeds. [21] John Scott and John L. Fuller performed a detailed study of purebred Cocker Spaniels, purebred Basenjis, and hybrids between them. [22] They found that hybrids ran faster than either parent, perhaps due to heterosis.
Some health issues not common in either parent breed may be more common in the crossbreed than both of the parent breeds. Prolapsed nictitating membrane gland is a condition more common in the Puggle and Jug than both of the parent breeds, which shows the complexity of genetics and provides evidence against the theory of hybrid vigour. Overall ...
The study concluded that while Australian Cattle Dogs are a healthy breed and do live on average almost a year longer than most dogs of other breeds in the same weight class, record ages such as Bluey's or Chilla's should be regarded as uncharacteristic exceptions rather than as indicators of common exceptional longevity for the entire breed. [8]
A crossbreed is an organism with purebred parents of two different breeds, varieties, or populations. A domestic animal of unknown ancestry, where the breed status of only one parent or grandparent is known, may also be called a crossbreed though the term "mixed breed" is technically more accurate.
Purebreds are like cultivars of an animal species achieved through the process of selective breeding. When the lineage of a purebred animal is recorded, that animal is said to be pedigreed . Purebreds breed true-to-type which means the progeny of like-to-like purebred parents will carry the same phenotype , or observable characteristics of the ...
Driven by dog shows and the groups that hosted them, the term dog breed took on an entirely new meaning. Dog show competitions included best-in-breed winners, and the purebreds were winning. [7] Breed standards are the reason the breed came to be, and with those standards are key features, including form, function and fitness for purpose.