Components of feed affecting water footprint of feedlot dairy farm systems in Northern China

The data in this paper are mainly from the survey data of 14 dairy farms in Hebei Province in 2016.The basic information of dairy farm, feed consumption, feed information, water consumption of fertilizer diesel, feed composition and other data are from the survey and database; Different feed proportion is calculated from survey data; Green water footprint, blue water footprint and total water footprint are calculated using internationally recognized calculation methods.