Animals bred in captivity to help conservation programmes can quickly become less fit for survival in the wild, research suggests.
US scientists found steelhead trout reared in hatcheries were much less good at reproducing than wild fish.
Green Marine
about 19 years ago
Captive breeding ‘weakens’ beasts
Animals bred in captivity to help conservation programmes can quickly become less fit for survival in the wild, research suggests. US scientists found steelhead trout reared in hatcheries were much less good at reproducing than wild fish.
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