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Conservation of rare and local breeds of livestock
Abstract:
The genetic diversity of domesticated species is contained within breeds, with the result that conserving breeds conserves this diversity. Breeds are predictable genetic resources that allow a match of animals with different environments and production goals. Breeds were developed through a process involving foundation, isolation and selection. Breed types that qualify as genetic resources include 'landraces' (local breeds), standardised breeds, commercial production breeds and feral livestock that have returned to a free-living state. Currently, breeds of all classes are threatened with extinction. The reasons for breed conservation include maintaining breed diversity for future needs, cultural connections between people and breeds, and material for scientific investigation. Several breeds have undergone genetic adaptations that make them uniquely suited to specific challenging environments. Conservation depends upon discovering these genetic resources, securing them with a good genetic structure, and subsequently sustaining them for long-term survival with demand for the breed and its products.
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