Michael Johnson interview United States Download playpausestopmuteunmutemax volumerepeatrepeat offUpdate Required To play the media you will need to either update your browser to a recent version or update your Podcast Trailside Holsteins, United StatesHow dairyman Michael Johnson has integrated eartag activity monitoring. Minnesota dairyman Michael Johnson has been using eartag activity monitoring from CowManager for four and a half years. In this episode, he talks about his experience installing the technology, his results and advice for other dairymen who may be considering similar technology. Johnson operates Trailside Holsteins in Fountain, Minnesota, and milks 600-cows.Podcast by Walt Cooley, Editor Progressive Dairy. Full article, Page 34, Progressive Dairy.