This paper reviews 4 dry-off methods for dairy cows. Advantages and disadvantages are discussed. An illustrative budget shows how to calculate the economically most optimal dry off method.
USDA. 2016. Dairy 2014, Milk Quality, Milking Procedures, and Mastitis in the United States, 2014. USDA–APHIS–VS–CEAH–NAHMS. Fort Collins, CO. #704.0916.