The effect of adding selenium and zinc to practical rations for finishing beef steers /
Smith, W. H.(William H.),1929-author.
Beeson, W. Malcolm(William Malcolm),1911-1988,author.
Perry, Tilden Wayne,author.
Mohler, M. T.,author.
Harrington, Rodney B.,author.
Purdue University.Agricultural Experiment Station,publisher.
Caption title.
Beef cattle
Zinc
Selenium in animal nutrition.
Beef cattle
Selenium in animal nutrition.
Zinc