Monozygotic Twin Beef Cattle in Nutrition Research.

or identical, twin beef animals in growth and nutrition studies. The problem of continuous versus discontinuous growth of beef cattle in relation to the economics of beef production is under investigation at the U. S. Animal Husbandry Experiment Station at Beltsville, Maryland, and data now being obtained with identical twins should lead eventually to the production of more pounds of beef per 100 pounds of expensive concentrate feeds consumed. Geneticists have estimated that, in nutrition studies,