The idea is actually easy to explain: One of the negative effects of current trends in industrialized agriculture is, that the number of races and bloodlines hold as lifestock is decreasing. To prevent the decrease in genetic diversity and to prevent imbreeding (with all its potential physical consequences for the animals), old livestock races should be preserved. The only question remaining is: “can you built a business on this ground?” Yes, you can! In fact, a Swiss, Michael Dieterle, is already doing it (http://www.natur-pflege.ch/wsb/pages/willkommen/impressum.php). And, its is pretty straightforward: Old livestock races tend to be better in eating wild plants than industrial livestock races. As efficiency in meat production was the primary goal for the breeding of modern industrial livestock races, they are often accustomized to eating processed food. In contrary, old races will eat everything they can find on a meadow, heath etc. Thus, they are ideal when it comes to mowing the lane. In fact, they are even better than machines (when it comes to environmental friendliness). The irregularity with which they do their job, …