Historic and Endangered Domestic Animal Breeds

Some time ago I bought the new German stamps, including Germany's only souvenir sheet of 2016.

This is it:

Historic and Endangered Domestic Animal Breeds (issued 01-09-2016)
- German Saddleback
- Rhön Sheep

Historic and endangered domestic animal breeds have valuable characteristics, which might be useful in the future. But in the course of the industrialisation the agriculture started to concentrate on breeds which had the best output and so the historic breeds began to disappear. Today a breed with unique genetics becomes extinct every two weeks. In Germany the GEH aims at the conservation of the historic and endangered domestic animal breeds, because they are an irrecoverable treasure.

When the Team "Erlebnis: Briefmarken" was in my hometown recently, I bought two special covers about the stamps.