Which animals are live-harvested and why?

 
As far as we know, ducks are not live-harvested, but only those geese, which are kept for the purpose of laying eggs and breeding. Throughout every year, these animals undergo several moulting seasons, the hormonally induced process of shedding their old plumage. Harvesting the feathers and down from the live animal at the moment of moulting is a technique which has in former times been also applied for the purpose of landscape conservation. In order to avoid that a flock of, say, 100 mother geese shed their old feathers and down and that these fly around the landscape and entangle themselves in bushes, trees, buildings etc., the farmers were requested to contribute to the landscape conservation by collecting the loosely attached material. The animals are an important resource for the farmers. To treat this resource properly means to secure their income in the future. Cruelty to animals does not mean a secure income in the long run.
 
Quelle
Verband der Deutschen Daunen- und Federnindustrie e.V.