Transboundary breed Transboundary breed A transboundary breed is a breed which is present in several countries. Transboundary species of the five significant livestock types (cattle, sheep, goats, pigs and chickens), have been developed for a hundred years or more in intensive manufacturing systems, which has led to global availability. A relatively small number of worldwide transboundary breeds compose the ever-increasing share of total global animal products. However, only in North America and the Southwest Pacific do the number of transboundary breeds surpass that of local breeds. There can be both regional and international types of transboundary breeds. Regional breeds are breeds that
Stud (animal) Stud (animal) A stud animal is a registered animal retained for breeding. The terms for the male of a given animal species (stallion, bull, rooster, etc.) usually imply that the animal is intact—that is, not castrated—and therefore capable of siring offspring. A specialized vocabulary exists for de-sexed animals (gelding, steer, etc.) and those animals used in grading up to a purebred status. Stud females are generally used to breed further stud animals, but stud males may be used in crossbreeding programs. Both sexes of stud animals are regularly used in artificial breeding programs. A stud farm, in animal husbandry, is