Olbrich, Roland; Quaas, Martin F.; Baumgärtner, Stefan - 2009
sustainability. To gather this information for an important ecological-economic system, we conducted a survey of commercial cattle … existing farm-address databases, reaching 77% of the estimated 2,500 cattle farmers. The return rate of questionnaires exceeded … not belonging to the main interest group of commercial cattle farming. Notwithstanding, we consider the survey to be …