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Breeding programs are commonly employed in several fields where humans wish to change the characteristics of their animals' offspring through careful selection of breeding partners: Dog and cat fanciers may coordinate a breeding program to raise the probability of an animal's litter producing a championship-caliber animal.
Animal breeding is a branch of animal science that addresses the evaluation (using best linear unbiased prediction and other methods) of the genetic value (estimated breeding value, EBV) of livestock. Selecting for breeding animals with superior EBV in growth rate, egg, meat, milk, or wool production, or with other desirable traits has ...
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.
The presence of helpers allows the breeding female to reduce her prenatal investment in the offspring, which may lead to altricial births; altricial is the production of young which are dependent upon adult aid to survive. This enables the breeding female to retain energy to be used within a new breeding attempt. [19]
If the breeding is for a purebred animal that will be used for exhibition or future breeding (pets or livestock), the animal must be registered and conform to the criteria laid out for that breed in a breed standard kept by a central authority, such as a kennel club for dogs. In addition, the breed club, kennel club, or other governing ...
It is used in the breeding of both plants and animals, but is most commercially important in animal breeding to determine the true breeding value of an animal (especially males) which are used extensively for propagation of best germplasm. The extensive use of artificial insemination in domestic animals has helped in increasing the selection ...
This study and other programs increased awareness of heritage turkey breeds and by 2003 the breeding population stood at 4,275 turkeys of all breeds. By 2007 this had grown to more than 10,000 birds and 17 breeds were no longer considered to be almost extinct. [51] As of 2010, the number is estimated to be close to 15,000. [32]
Belyayev chose the silver fox for his experiment, "because it is a social animal and is related to the dog." [8] The silver fox had, however, never before been domesticated. Belyayev designed a selective-breeding program for the foxes that was intended to reproduce a single major factor, namely "a strong selection pressure for tamability".