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 previously because she had reached her limits due to age and health reasons, had to give up breeding and wanted the animals to be in good hands. She has a very moody character and takes longer to build up trust with people. Unfortunately, she is also incredibly resentful.