From this herd originated the dams and sires utilised in the program of crossbreeding.

The Nez Perce tribe began a breeding program in 1994 based on crossbreeding the Appaloosa and a Central Asian breed called Akhal-Teke to produce the Nez Perce Horse.

In the early 1930s, Berlin Zoo Director Lutz Heck and Heinz Heck of the Munich Zoo began a program crossbreeding Koniks with Przewalski horses, Gotland Ponies, and Icelandic horses.

This crossbreeding program improved the fertility, calving ease and weight gains of the progeny produced there.

However, genetic fingerprinting conducted by a group of researchers in 2004, which included those who were later attributed on the patent, determined that neither of these cultivars is a parent of the Honeycrisp, but that the Keepsake ( another apple developed by the same University of Minnesota crossbreeding program ) is one of the parents.

Dracula conducted bizarre crossbreeding experiments involving himself and countless human women or even other vampires, with the only successful product of the experiments being D. D, wanting nothing to do with his father save for killing him, refuses to go by his true name.

In the 1920s, it conducted the first known studies on the crossbreeding of cattle, which went on to become a national practice still in use by the cattle industry.

The alternative crossbreeding programs initiated in 1940 by Dr. Antonio Teixeira Viana had the objective of obtaining first, crossbreeds 5 / 8 Charolais and 3 / 8 Zebu and second, 3 / 8 Charolais x 5 / 8 Zebu, to evaluate which of the two was the most successful.

* originated by crossbreeding numerous different established varieties with " scaleless " German carp ( generally, fish with only a single line of scales along each side of the dorsal fin ).

This type of crossbreeding, termed genetic pollution by those who are concerned about preserving the genetic base of the wild species, has become a major concern.

Humanists use it too, as the pansy's current appearance was developed from the Heartsease by two centuries of intentional crossbreeding of wild plant hybrids.

To prevent spawning, sterile oysters are now cultured by crossbreeding tetraploid and diploid oysters.

About 8000 BC, the Lantean remnants returned to the planet but the primitive civilization extinguished their last hope of rebuilding their once great civilization due to the presence of the Goa ' uld ; as such, the Ancients slowly died out since their numbers were too small to survive, even by crossbreeding with regular humans.

Throughout his years of research, Borlaug's programs often faced opposition by people who consider genetic crossbreeding to be unnatural or to have negative effects.

Accidental crossbreeding by feral animals may result in harm to breeding programs of pedigreed animals ; their presence may also excite domestic animals and push them to escape.

When cultivating genetically modified ( GM ) plants or livestock, it becomes necessary to prevent " genetic pollution " i. e. their genetic modification from reaching other conventionally hybridized or wild native plant and animal populations by using gene flow mitigation usually through unintentional cross pollination and crossbreeding.

By the classical genetics approach, a researcher would then locate ( map ) the gene on its chromosome by crossbreeding with individuals that carry other unusual traits and collecting statistics on how frequently the two traits are inherited together.

Considerable variation exists among trees in the wild, and this may be complicated by crossbreeding with planted London planes ( Platanus x hispanica ), the hybrid of P. orientalis with the American sycamore ( Platanus occidentalis ).

A 1904 drawing of a Clydesdale mare Through extensive crossbreeding with local mares, these stallions spread the Clydesdale type throughout the areas where they were placed, and by 1840, Scottish draught horses and the Clydesdale were one and the same.

Tonkinese cats are the result of a recent crossbreeding between the Siamese and Burmese cat breeds, although some assert that Tonkinese-like cats have existed since at least the early 19th century, and the founding cat of the Burmese breed was probably a mink hybrid-colored cat named " Wong Mau ," a small walnut colored cat imported to California by Dr. Joseph Cheesman Thompson in 1930.

The main reasons for its popularity are ( i ) it can be used with great success in crossbreeding for breeding of both cows with much milk and heavy weaners / oxen, ( ii ) a large number of performance-tested bulls, ( iii ) comprehensive advice and other breed improvement services to its breeders, and ( iv ) animals that do not pass stringent inspection by breed experts, are permanently eliminated from the herdbook.

The breed developed in ancient times in the Hebrides islands in Scotland, and a small population remained pure and protected from crossbreeding by the remoteness of the islands.

This was later disproved by crossbreeding experiments done by the Preissels, published in 1997.

Other " registries " are marketing attempts to create new horse breeds, usually by breeders using crossbreeding to create a new type, but the animals are not yet breeding " true.

A related preservation method is backbreeding, used by some equine and canine registries, in which crossbred individuals are mated back to purebreds to eliminate undesirable traits acquired through the crossbreeding.

By the classical genetics approach, a researcher would then locate ( map ) the gene on its chromosome by crossbreeding with individuals that carry other unusual traits and collecting statistics on how frequently the two traits are inherited together.

To wit, removal of protection in 1935 ; the crossbreeding with Red Deer that spread into the area ; the gazetting of the Fiordland region as a National park in 1952 ; and the resulting status of the Elk and all introduced game species being relegated to that of noxious animals, or pests, by the government agencies of the time ; has seen the wild herd go into decline.

This crossbreeding led to the first generation of Hua Luo Han flowerhorn hybrids, which were then followed by subsequent flowerhorn introductions.

Pottok numbers have been severely reduced by habitat loss and crossbreeding.

Breeders of domesticated species discourage crossbreeding with wild species, unless a deliberate decision is made to incorporate a trait of a wild ancestor back into a given breed or strain.

Hybridization is also a concern to the breeders of purebred species as well, particularly if the gene pool is small and if such crossbreeding or hybridization threatens the genetic base of the domesticated purebred population.

Mexico, having banned GMOs, is trying to limit contamination and crossbreeding from subsidized U. S. GMO corn imported through the North American Free Trade Agreement ( NAFTA ) for eating.

When individuals are looking to breed animals, they look for certain valuable traits in purebred stock for a certain purpose, or may intend to use some type of crossbreeding to produce a new type of stock with different, and, it is presumed, superior abilities in a given area of endeavor.

Since the two Corgi breeds developed in the Welsh hill country, in areas only a few miles apart, there is evidence of crossbreeding between the two that accounts for the similarities.

However, crossbreeding with housecats is extensive, and has occurred throughout almost the entirety of the species ' range.

Trocha rivals in popularity with paso fino in Colombia, but crossbreeding is now avoided.

In addition crossbreeding is popular for pets, combining characteristics of the parents in unique ways.

The pollen and the inflorescence both have short lives, which means a large collection of philodendrons is necessary if crossbreeding is to be done successfully.

It is later revealed that Jensen has really spent his time in space crossbreeding animals to create an army of mutants, in order to exact his revenge on the corrupt Department of Space head.

While crossbreeding is used to maintain health and viability of animals, irresponsible crossbreeding can also produce animals of inferior quality or dilute a purebred gene pool to the point of extinction of a given breed of animal.

The term outcross is used to describe a type of crossbreeding used within a purebred breed to increase the genetic diversity within the breed, particularly when there is a need to avoid inbreeding.

One type of modern crossbreeding in horses is used to create many of the warmblood breeds.

Once common, it is endangered through habitat loss, mechanization and crossbreeding but efforts are increasingly made to safeguard the future of this breed.

There is much debate about how best to increase numbers-whether to focus only on the purebreds or to employ selective crossbreeding to build greater numbers of Pottok-like ponies.