Karla Wilke ([email protected]), UNL cow-calf nutritionist is guest.  She discusses some of the "art and science" of confined cow feeding.  Written publications can be found at http://extensionpublications.unl.edu/assets/html/g2237/build/g2237.htm; https://beef.unl.edu/dry-lot-beef-cowcalf-enterprise; https://beef.unl.edu/cattleproduction/breedingcowsinconfinement.