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
Chester Zoo and 155 were classified as threatened species. 134 species were kept as part of a managed captive breeding programme. The zoo manages the studbooks for Congo buffalo, jaguar, blue-eyed cockatoo, Madagascan tree boa, gemsbok (all ESB species), black rhinoceros, Ecuadorian amazon parrot, Mindanao writhe-billed hornbill, Sumatran Tiger and Rodrigues flying fox (all EEP species). In addition, Chester holds 265 threatened plant species. At the end of 2015, Chester zoo became the first zoo outside of New Zealand to breed the tuatara. The zoo opened "Islands at Chester Zoo" in July 2015, a project extending the footprint of the zoo by