Labradoodle development and infusions.
This page is dedicated to helping people who are diligently researching the Labradoodle development and infusions, and may have become confused by so many different terms, such as F1 Labradoodles, F1B Labradoodles, Multigenertion Labradoodles, Australian Labradoodles, ASD Australian Labradoodles, Australian Cobberdogs, Heterosis, Infusions, Backcrosses…ect.
What is a Labradoodle? Often called the American Labradoodle ~ Primarily a hybrid dog, by mating a Standard Poodle to a Labrador Retriever, They are great dogs, often goofy, playful, and generally enjoy very good health due to heterosis, or hybrid vigor. Often breeders then back-cross the F1(Lab~Poodle hybrid) Labradoodle back to Poodle in an effort to gain a more hypoallergenic coat, the offspring of this mating is classified as F1B. These too are nice dogs, as they usually have an allergy friendly coat, and are highly trainable as is the Poodle. There are some breeders who are taking the Labradoodle past the F1 and F1B stages and breeding Labradoodles to Labradoodles, and using the term multi-generation Labradoodles. This breeding practice will result in more consistency in the offspring, such as coat, size and temperament, the resulting offspring will become increasingly homogeneous, which will eventually result, (if never outcrossed with another breed) to serious genetic illnesses, due to recessive negative genes coming together.
What is an Australian Labradoodle? Obviously they must have originated in Australia ~ or not? Well the truth is, all Australian Labradoodles do have genetic links to Australia, but many of the lines have Labradoodles bred in North America integrated into them. Why are they called Australian Labradoodles? The breeders in Australia did not want their dogs to be mistaken for the many Lab~Poodle crosses being bred world wide, especially in North America. The Australian Labradoodle is a developing dog breed, not yet purebred, but may be in the very near future. Two breeders in Australia founded the Australian Labradoodle, its original purpose is to be an assistant and companion dog, which they do excel in very well. This breed is composed of primarily Labrador and Poodle genetics, with later infusions of the Irish Water Spaniel, the English and American Cocker Spaniel, and in 2004 the Irish Soft Coated Wheaten Terrier, these infusions were carried out to gain qualities the founders thought to be missing, they also greatly diversified the gene pool, this in turn will promote health in the Australian Labradoodle, which so many of our pure breeds lack, due to extensive line and inbreeding, in order to obtain certain traits that are considered desirable by the breeder. The Australian Labradoodle is now being developed as two different breeds, the Australian Labradoodle Association of America mandates the Australian Labradoodle as a three breed dog, which consists of Poodle, Labrador, and Cocker Spaniel genetics. This mandate is in contradiction with the co-founder and developer of the Australian Labradoodle – Beverly Manners. As was stated earlier, in 2004 the Irish line Soft Coated Wheaten Terrier was infused by Beverly Manners –Rutland Manor in Australia. Two Irish Wheaten Terriers, were infused, Brandy, an Australian Champion, with UK imported lines in his pedigree was used over a wool coated miniature, Rutlands Lil Misty, and Patrick was used over a wool coated standard, Rutlands Funnie Bunnie. This was the beginning of division in the Australian Labradoodle breed. After the Irish Wheaten Terrier infusions were carried out Rutland Manor has disassociated from the International Australian Labradoodle Association, which Beverly Manners founded, and has since trademarked her dogs as ASD Australian Labradoodles (Australian Service Dog). In 2009 the Australian Labradoodle Founders Alliance was set up to register the ASD Australian Labradoodle. They are wonderful dogs, and are sure to change the way disabled and able people around the world live their lives. The history of the Australian Labradoodle is far from over! As it unfolds we will post here, so stay tuned……
Hybrid Vigor, (HETEROSIS)~What is it? “Heterosis is a term used in genetics and selective breeding. We are of the opinion that in the world of dog breeding, no one person or organization owns a particular dog breed. We are strong advocates of crossbreeding Pure and Hybrid dogs, as long as it is done with care and betters the breed, regarding health and temperament. That said, we do have respect for Pure Breeds and their Fanciers, and will never crossbreed, without expressed written permission of the Purebred Breeder who has sold us a pure bred dog for breeding purposes. We are only the caretakers of dogs, and must do all in our power to breed healthy dogs that have a purpose and work to enhance the lives of our fellow human beings.
In nature, not only will individual animals often travel great distances to find unoccupied territories, they may also cross the species barrier as they do so. A wolf will mate with both a dog AND a coyote, while finches leap across the species barrier at the drop of a hat. A spotted owl will freely mate with a barred owl, while most amazon parrots freely cross breed. A lion can mate with a tiger and produce fertile offspring, and an African elephant can cross breed with an Asian elephant. A muskellunge will cross with a northern pike, and a sunfish will cross with a bluegill. Trout and salmon species readily hybridize. Many species of hawks and falcons will also cross the species line, while a buffalo will cross with a cow. Just recently a hunter in Alaska shot an animal that turned out to be a cross between a polar bear and a grizzly. The point here is not that trans-species outcrosses are common, but that even between distinct species. Nature often runs its train “loose on the tracks,” and a considerable amount of genetic wobble is allowed. Nature allows outcrosses because it values heterogeneous genes, while it punishes homogeneous genes by “culling” animals through a process of dwindling survivorship (neonatal mortality), shortened lifespans, and infecundity.
The term heterosis, also known as hybrid vigor or out breeding enhancement, describes the increased strength of different characteristics in hybrids; the possibility to obtain a genetically superior individual by combining the virtues of its parents. Heterosis is the opposite of inbreeding depression, which occurs with increasing homozygosity. The term often causes controversy, particularly in terms of the selective breeding of domestic animals, because it is sometimes believed that all crossbred plants or animals are genetically superior to their parents; this is true only in certain circumstances: when a hybrid is seen to be superior to its parents, this is known as hybrid vigor. When the opposite happens, and a hybrid inherits traits from their parents that makes them unfit for survival, the result is referred to as outbreeding depression. “reference”: http://en.wikipedia.org/wiki/Heterosis Some breeders use this term to sell you on Doodles, regarding one health concern hybrid vigor is a positive step specific to mixed breed dogs, beware it only affects one concern. When pure bred dogs are bred the lines are crossed over and over, possible negative genetic traits are reintroduced again and again. If line or inbreeding is practiced possible negative genetic traits are reintroduced at even higher rates. Typically for a disease like Addison’s disease to be expressed in a dog it requires the genetic trait to be passed by both parents. If it is only passed by one parent the trait is recessive and the dog never shows any signs or symptoms of the disease in its lifetime. Therefore, if a breed like the Poodle has been known to carry SA (a skin condition) and a breed like Labrador is known not to carry SA, then the first generation breeding of these dogs cannot express SA. This is a positive health affect of hybrid vigor. Once a Labradoodle is bred to another Labradoodle or another Poodle in this specific case of SA, the hybrid vigor influence is diluted. The primary reason to advocate for hybrid vigor is temperament. For generations pure bred dogs have been inbreed and line breed to reduce size or create the perfect conformation standard. Or another dog was selected as a breeding dog specifically due to its size of conformation, its ability to produce smaller offspring or win in the show ring over temperament was the concern. This has lead to poor temperament offspring in general. The crossing out to unrelated lines, if selecting breeding dogs with temperament as top criteria, begets top temperament puppies. Yeah for hybrid vigor. On the flip side, if both breeds carry a disease hybrid vigor has absolutely no affect. This is why health testing breeding dogs is so critical. Health testing breeding dogs costs about $1000 to $1500 per dog, but is NECESSARY for a breeder to know what they are producing and to support a positive step in reducing health incidents in Labradoodles, Australian Labradoodles, and Australian Cobberdogs. Diseases that are of concern to Poodles, Labs and all other breeds used in Australian Labradoodles/Cobberdogs are Hip Dysplasia, Elbow Dysplasia, Heart conditions, Eye conditions, and Thyroid Conditions. All breeders should be testing their breeding dogs by completing Hip and Elbow testing (either OFA, PennHIP or BVA test), Heart Screening, Eye testing (CERF or other), before breeding a dog AND removing those that do not pass these tests from their breeding program.
Labradoodle development and infusions!