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The Japanese Medaka fish has a high tolerance for inbreeding, one line having been bred brother-sister for as many as 100 generations without evidence of inbreeding depression, providing a ready tool for laboratory research and genetic manipulations. Key features of the Medaka that make it valuable in the laboratory include the transparency of ...
Dogs commonly give birth in a whelping box, a simple box or pen provided to the dam to help shelter and contain the puppies. A person who intentionally mates dogs to produce puppies is referred to as a dog breeder. Line breeding is the planned breeding of dogs with their relatives. This is done to strengthen the appearance of specific desired ...
Inbreeding is the production of offspring from the mating or breeding of individuals or organisms that are closely related genetically. [1] By analogy, the term is used in human reproduction , but more commonly refers to the genetic disorders and other consequences that may arise from expression of deleterious recessive traits resulting from ...
It developed an online tool called Mate Select, which allows people to look up health test results and inbreeding level of individual dogs compared to the breed average. The database can also calculate for breeders the coefficient of inbreeding (COI) that two selected dogs will produce. A father/daughter mating will produce puppies with a COI ...
Selective breeding (also called artificial selection) is the process by which humans use animal breeding and plant breeding to selectively develop particular phenotypic traits (characteristics) by choosing which typically animal or plant males and females will sexually reproduce and have offspring together.
Date/Time Thumbnail Dimensions User Comment; current: 01:55, 4 April 2010: 240 × 335 (7 KB): Dodo bird {{Information |Description={{en|1=An intensive form of linebreeding where an individual with highly desirable traits(S) is mated to his daughter(D1) and daughter's daughter(D2) and so on, in order to maximise the percentage of S's genes in the offsprings.
Therefore the coefficient of inbreeding of individual G is = (+) = + = %. If the parents of an individual are not inbred themselves, the coefficient of inbreeding of the individual is one-half the coefficient of relationship between the parents. This can be verified in the previous example, as 12.5% is one-half of 25%, the coefficient of ...
The programme analyses that dogs were initially bred for practical functions such as hunting and guarding, but in the middle of the 19th century, breed standards began to shift, as dogs became a status symbol and dog breeding became a sport, and the function of a dog became a secondary consideration after appearance.