A conformation championship from a recognised national kennel club is generally considered as an indication of merit.
Some critics argue that the shows can encourage selective breeding of traits and lower genetic diversity.
As an example, what exactly entails a "full coat" or a "cheerful attitude", descriptions found in breed standards, can be learned different.
A dog must receive four international Certificat d'Aptitude au Championnat International de Beauté (CACIB) to qualify for a championship; one must be won in the dog's own country, and at least two in other countries under at least three different judges.
[6] In some cases, one or more of these classes may be divided by color, height, weight, or coat type.
Next is the Grand Excellent Championship which may be awarded to dogs who accumulate 100 points and have won at least one Best in the show.
[16] Some critics state that conformation shows lead to the selection of breeding dogs based solely upon appearance, which is seen by some as detrimental to working qualities and, at worst, as a promotion of eugenics.
[18] Breeding selective traits reduces genetic diversity, which can create some health problems in dogs.
[18] In the United States, some working dog breed organisations, such as the American Border Collie Association and the Jack Russell Terrier Club of America, have tried to fight to keep their breeds from being recognised by the AKC and some other kennel clubs,[19] as they thought that the introduction of their breeds to the show ring would lead to decreasing numbers of working dogs with adequate qualities.
Following the broadcast, the BBC withdrew its television coverage of the Crufts dog show from 2009, with other sponsors and partners also withdrawing support, including Pedigree Petfoods, the RSPCA, PDSA and the Dog's Trust.
In response to the programme, the Kennel Club in the UK announced a review of all breed standards.
In the more common unbenched shows, dogs are required to be present only at assigned ring times.