A crossbreed, or a crossbred, animal is one with purebred parents of two different breeds, varieties, or populations. The process of breeding a crossbreed animal is known as crossbreeding, which often intends to create offspring that share the desirable characteristics and traits of both parent lineages. Another common intention when it comes to crossbreeding is producing an animal with hybrid vigor (also known as heterosis or outbreeding enhancement), which is the improved or increased function of any biological quality in a hybrid offspring. Heterosis is known as the occurrence of a superior offspring through mixing the desirable genetic contributions of both its parents, which can stem from Mendelian and non-Mendelian inheritance. Crossbreeding is often used to maintain both the health and viability of animals, but irresponsible crossbreeding can also result to offspring of inferior quality or even the dilution of a purebred gene pool to the point of extinction of a specific animal breed.
A domestic animal of unknown ancestry can also be referred to as a crossbreed. In this context, only one parent or grandparent of the animal is known, but the term “mixed breeding” is technically more appropriate and accurate. On the other hand, the term outcross refers to the type of crossbreeding is used within a specific purebred breed in order to increase the genetic diversity within that specific breed, especially in cases when it is essential to avoid inbreeding.
There are systems of crossbreeding for cattle animals. An example is with purebred females that have adapted to a specific environment that are crossed with purebred bulls from another type of environment in order to produce a generation with the traits of both parents. Dogs are also commonly used for crossbreeding, with crossbred animals being popular because of their high hybrid vigor combined with relative attractiveness in the animal.
This category contains scientific information on crossbreed, an animal with purebred parents of two different breeds, varieties, or populations.
Delaunoy F., 1981: Peri natal mortality and gestation length in inter breeding belgian landrace x belgian landrace and cross breeding pietrain x belgian landrace. Annales De Medecine Veterinaire: 197 A total of 755 litters issued from interbreeding Belgian Landrace.times. Belgian Landrace and 983 litters issued from crossbreeding Pietrain.times. Belgian Landrace was selected for study. The [...]
Trela J., 1986: Performance value of simmental cattle and the importance of this population in poland. Biuletyn Informacyjny Instytut Zootechniki6: 34-50 Milk production performance of Simmental cows in the European countries growing significant population of this breed was analysed. In addition, Polish population of Simmental cows was studied and corresponding data were presented. Efficient growth [...]
Chambers J.R., 1982: Performance of meat type chickens test positive and test negative for lymphoid leukosis virus infection. Avian Pathology: 29-38 Four sire-line and 7 dam-line breeding stocks of meat-type chickens were purchased as 1 day old chicks from commercial breeders. One egg from each of 61-81 hens per stock was tested at 245-280 days [...]
Day H.R., 1981: Performance of hereford and friesian x hereford dams and their hereford sired and friesian sired progeny in a mediterranean environment. Australian Journal Of Experimental Agriculture & Animal Husbandry9: 137-147 The 2 dam breeds did not differ in fertility and their calves had similar mortality rates. Even though calves from Hereford dams were [...]
Vincene H., 1987: Opportunity for breeding booroola merinos in hungary. Allattenyesztes Es Takarmanyozas: 53-61 The youngest member of the merino family, the booroola, was imported from New Zealand three times in the years of 1980-1982 and in 198 At present there are 20 rams in Hungary that are descendants of 13 rams of 8 lines. [...]
Pollott G.E., 1981: Observations on the growth and performance of some european zebu calves reared on agro industrial byproducts compared to their pure bred zebu sudan type contemporaries. Acta Veterinaria (belgrade): 185-192 Preliminary information on the adaptability and performance of the crossbreds is recommended for developing animal production systems because of the recent breeding of [...]
Walkley J.R.W., 1981: Objectives and selection criteria for dorset sheep in australia. Livestock Production Science: 331-338 Selection objectives were defined for the Dorset breed in each of its 3 roles in the Australian prime lamb industry. Traits influencing returns to the prime lamb producer were identified and included in the selection objective when the Dorset [...]
Dohy J., 1987: New results of the jersey breed and its use in the formation of specialized dairy types. Allattenyesztes Es Takarmanyozas: 415-417 The author surveys the role of the Jersey breed and opportunities for its use in breeding strategies. In respect of feed expense of milk production this breed produces the most outstanding figures [...]
Morris, C. A., 1979: National survey of pig breeding practices breeds and breeding practices. New Zealand Journal of Experimental Agriculture 7(3): 231-234 A national questionnaire of farms with pigs was performed in April 1977 and was used as a source of data on extent of use of purebred vs. homebred stock in commercial herds, fate [...]
Schedel K., 1987: Murnau werdenfelser cattle at present. Zuechtungskunde: 185-190 The origin of the Murnau-Werdenfelser cattle is not completely clear. Several alpine breeds and strains were introduced during the last century. However, since about 50 years replacements are taken from within the breed. The numbers have dwindled to less than one percent of the original [...]