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Purebred are those animals that have been bred-up to purebred status as a result of using full blood animals to cross with an animal of another breed. Artificial breeding via artificial insemination or embryo transfer is often used in sheep and cattle breeding to quickly expand, or improve purebred herds.
A physiological race is not to be confused with a physiologic race, an obsolete term for cryptic species. [16] Neither biological form nor forma specialis should be confused with the formal botanical taxonomic rank of forma or form, or with the zoological term form, an informal description (often seasonal) which is not taxonomic.
Researchers have investigated the relationship between race and genetics as part of efforts to understand how biology may or may not contribute to human racial categorization. Today, the consensus among scientists is that race is a social construct , and that using it as a proxy for genetic differences among populations is misleading.
In it, Lewontin presented an analysis of genetic diversity amongst people from different conventionally-defined races. His main finding, that there is more genetic variation within these populations than between them, [2] is considered a landmark in the study of human genetic variation and contributed to the abandonment of race as a scientific ...
Initially, the ownership of working and purebred dogs, was a privilege of the wealthy. Today many people can afford to buy a dog. There are various reasons for people to breed dogs. Some people may have personal reasons, such as wanting to own or give away puppies, and are not interested in pedigree.
Purebred breeding aims to establish and maintain stable traits, that animals will pass to the next generation. By "breeding the best to the best," employing a certain degree of inbreeding, considerable culling, and selection for "superior" qualities, one could develop a bloodline superior in certain respects to the original base stock.
The term race in biology is used with caution because it can be ambiguous. Generally, when it is used it is effectively a synonym of subspecies. [79] (For animals, the only taxonomic unit below the species level is usually the subspecies; [80] there are narrower infraspecific ranks in botany, and race does not
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 ...