Calves purchased from local sale barns have usually been severely stressed and exposed to disease. Few, if any, have been vaccinated or have adequate immunity to fully protect them from disease challenge. A good receiving program is essential to reduce sickness and death loss and to condition calves to perform adequately through the grazing period.

Proper use and timing of immunizations and antibiotics are essential for animal health, but equally important is the proper nutritional managements.  

To read the entire article, link here.