As part of the cooperation entered into with the Swiss Sandgrueb Foundation (Egg near Zurich) in 2019, Gut Aiderbichl assumed responsibility for the lifelong care of a healthy group of 15 Arabian mares. The Sandgrueb Foundation had taken over the stock of an Arabian horse breeder a few years earlier because she had reached her limits for reasons of age and health, had to give up breeding and wanted to know that the animals were in good hands. She is the mediator in the group, able to mediate between the individual animals.