At Siegenthaler Farms LLC, in Darlington, Wis., they custom-raise heifers from 300 pounds until 60 days before freshening. In order to help keep incoming calves healthy during the transition, they use an automatic medication dispenser to deliver the correct dose of Aeromycin into the water for those calves. They also use a back-flow preventer to make sure that the medication cannot flow backward into their water supply.

The new calves receive the medication in their water at a dilution rate of 0.08 percent for 10 days. The system was installed two years ago before they received their first heifers. And in two years of raising heifers from multiple farms, they have not lost one animal during the transition stage.

Submitted by Greg Siegenthaler, Darlington, Wis.