Line' breeding, which inevitably led to in breeding in the past, has resulted in pure breed dogs inheriting a huge range of diseases and disorders. Many good breeders are attempting to combat this today with more responsible breeding strategies and pre-breeding health tests. However, they are still working with a limited gene pool, so can only really achieve damage limitation. Indeed, part of their strategy involves limiting their breeding dogs to those that pass various health tests (eg hip/elbow scores) thus effectively reducing the gene pool even further. Long term this will inevitably be counter productive. A more effective method is by actively widening the gene pool, which is exactly what crossbreeding achieves. This was, for some breeders, the most important reason for starting to breed Labradoodles. Crossbreeding should be a deliberate and carefully considered mating of two first class representatives of their respective breeds to ensure the best possible combination. Crossing any old Labrador with any old Poodle would not produce the quality of first generation puppies to strive for. The important thing is that you should feel confident that you know exactly how your Labradoodle has been bred. Although not recognised as pure breeds they should still come with a full pedigree certificate detailing their breeding history.