The purpose of this website is to host essays and information about maintaining viable populations of healthy pure bred dogs
This wiki site has been established to serve as an international resource for current essays and articles on the science and art of breeding healthy and vigorous dogs. During the last 40 years, the science of genetics has been greatly transformed by our increased knowledge of DNA functionality, population genetics, and the genetics of the immune system.
Pertinent information on these topics has not been readily accessible to the average dog breeder; meanwhile, outdated models for producing "purebred" dogs have persisted, and many breeders remain unaware of the pitfalls of linebreeding and inbreeding, for their own dogs and for the breed as a whole. As the public's attitude towards pets has become increasingly humanized, breeders of purebred dogs shoulder an increasingly heavy burden to produce animals that will not only look beautiful, not only become beloved family members, but also remain healthy and live a long life. As a result, many purebred dog fanciers today find themselves between a rock and several very hard places: they want to produce beautiful dogs that will win in the show ring, that will be instantly identifiable, that can perform the function for which they were developed, and even win in performance trials. No mean task!
Different breeds of purebred dogs have greatly varying population sizes and historical backgrounds.
Most breeds that are registered with the AKC are relatively rare, and are generally bred by serious hobbyists. For some breeds, especially the popular small companion dogs, a significant proportion of the annual puppy production occurs at large-scale breeding facilities.
The current discussions are mostly limited to the USA because of the availability of statistical information at this time. Contributions from other knowledgeable dog fanciers from other countries are actively solicited.
In the modern situation of closed stud books registraties ???? that do not mutually recognize each other's studbooks essentially create separate breeds and reduce diversity within the gene pool. For example in the United States the movement of many of the large scale puppy producers to newly created registries has removed their dogs from being bred within the AKC gene pool. The AKC and the US may be disproportionally important in dog population matters because the US human population is 31% of the total population of what I think of as dog show/dog hobby countries. [[Table of dog hobby countries]], human population numbers. [BD this list probably needs expanding]
[note by BD - I think the FCI policy is only to recognize one registry per breed in other countries but I do not know for sure. Wll FCI recognize a UKC registered dog so that at a later date its descendants SPELLING! can come back to the AKC? This itself is a topic for an article]
[Another set of data we need is actual comparisons of number of purebred dogs registered in different countries like Canada, Great Britain, FCI, Russia, Japan etc. My feeling is that standard of living, human population size and availability of space influences pure bred dog population size, especially for large breeds.]
"A question that needs to be answered: What does the existence of a large population of mass-produced puppies do to the genetic health of a breed? " (sue)again, this seems out of place. Mass production is not the only or even the largest problem for most breeds, is it? Moving this and the other questions to the FAQ.
Pedigree Dogs Exposed - The Blog
A Bitter Cynoanarchist Rages On
Online Mendelian Inheritance in Animals (OMIA) OMIA
Understanding Gene Loss in successive generations An Interactive Academic Site on "Gene Dropping" at University of Montana
GENUPComputer aided learning for quantitative genetics.
Although a Windows application Bonnie Dalzell has been able to run it under Ubuntu Linux from my desktop.
A tactical approach to the design of crossbreeding programs.
Cultivar Crazy - Preserving the Genetic Heritage of Plants
Applied Animal and Plant Breeding
The Effects of Genetic Drift, Inbreeding, and Interpopulation Hybridization experimental study involving Drosophila (fruit flies)
Inherited Diseases in Dogs (IDID)
Canine Inherited Disorders Database
List of Inherited Disorders in Animals (LIDA)
VMDB Veterinary Medical Database
The Veterinary Medical Database (VMDB) compiles patient encounter data from nearly all North American veterinary medical databases.
CERFCanine Eye Registration Foundation
CHIC) Canine Health Information Center
OFAOrthopedic Foundation for Animals
CERF Canine Eye Registration Foundation
A Healthier Future for Pedigree Dogs
Closed Registries, Genetics, and Inbreeding Depression
A series of articles concerning the genetics of selection, inbreeding, inheritance of congenital defects.
All 4 essays by Susan Thorpe-Vargas Ph.D., John Cargill MA, MBA, MS, and D. Caroline Coile, Ph.D
Project to breed Dalmations with normal uric acid metabolism
Clarmorris Parson Russell Terriers
The Effects of Genetic Drift, Inbreeding, and Interpopulation Hybridization experimental study involving Drosophila (fruit flies)