To Dry Treat or Not to Dry Treat: Managing Dry Off to Produce High Quality Milk
P.L. Ruegg, Department of Dairy Science, University of Wisconsin-Madison
The dry period is known to be an important risk period for mastitis. The use of comprehensive antibiotic dry cow therapy (DCT) has long been recommended as the primary strategy to control mastitis during the dry and peri-parturient period. Most US dairy herds, use comprehensive DCT but in recent years, the routine use of antibiotics in dairy cattle has been challenged, and the use of selective dry therapy has been considered. The aim of this paper is to provide practitioners with guidance about when selective dry cow therapy is advised and when it is not recommended.