As part of the EU project “Sustainable Organic and Low-Input Dairying (SOLID)” (7th Framework Program Call: FP7-KBBE-2010-4; Grant agreement no. 266367) in collaboration with the University of Natural Resources and Life Sciences (Department of Sustainable Agricultural Systems , Institute of Livestock Sciences) carried out studies and evaluations on the suitability of different genetic origins for low-input milk production systems. For this purpose, existing data on milk production, feed intake, efficiency, fertility and animal health of the breeds is evaluated at the organic teaching and research facility. In addition, a feeding trial will be carried out in the winter feeding period 2011/2012 and 2012/2013, whereby the feeding intensity at the start of lactation will be differentiated in both breeds (control or low input). In addition to the production data, physiological parameters are also collected. The purpose of the investigations is to examine whether cow types (genetic origins) differ in their suitability for low-input milk production. By coordinating this study with the EU project SOLID, a comparison of the concept of "adapted genotypes from line breeding for life performance" with the concepts of "adapted genotypes from cross breeding" and "adapted genotypes from long-term selection for fertility and health" should be made possible. The latter concepts are being investigated as part of the EU project SOLID in Great Britain and Finland, respectively.