Dutch dairy farms after milk quota abolition: Economic and environmental consequences of a new manure policy C.W. Klootwijk, C.E. Van Middelaar, P.B.M. Berentsen, I.J.M. de Boer Journal of Dairy Science Volume 99, Issue 10, Pages 8384-8396 (October 2016) DOI: 10.3168/jds.2015-10781 Copyright © 2016 American Dairy Science Association Terms and Conditions
Figure 1 New Dutch manure policy after quota abolition (the “Dairy Act”). The total surplus of 2015 is based on farm-specific excretion factors, whereas calculation of surpluses A, B and the phosphate quota are based on standard excretion factors per type of animal. Journal of Dairy Science 2016 99, 8384-8396DOI: (10.3168/jds.2015-10781) Copyright © 2016 American Dairy Science Association Terms and Conditions
Figure 2 Nitrogen (N) and phosphate (P2O5) farm surpluses per hectare for an average Dutch dairy farm before quota abolition (2014) and after quota abolition (2016). Results A to E are variants of 2016 scenario: A=increased barn capacity, B=higher field and cow productivity, C=low manure disposal and processing prices, D=low land price, and E=higher milk price. Journal of Dairy Science 2016 99, 8384-8396DOI: (10.3168/jds.2015-10781) Copyright © 2016 American Dairy Science Association Terms and Conditions
Figure 3 Greenhouse gas emissions [kg of CO2 equivalents (CO2-eq) per tonne of fat- and protein-corrected milk (FPCM)] for an average Dutch dairy farm before quota abolition (2014) and after quota abolition (2016). Results A to E are variants of scenario: A=increased barn capacity, B=higher field and cow productivity, C=low manure disposal and processing prices, D=low land price, and E=higher milk price. Journal of Dairy Science 2016 99, 8384-8396DOI: (10.3168/jds.2015-10781) Copyright © 2016 American Dairy Science Association Terms and Conditions