Genetic wizardry by gene splicing is giving rise to a major scientific revolution called biotechnology and spawning many new developments exceeding our fondest dreams. Biotechnology will involve every facet of animal production from breeding and feeding to the finished product, including the genetic makeup of animals and the feeds they eat; the digestion, physiology, stress tolerance, disease resistance, and efficiency of production of animals; the composition, quality, and quantity of products produced; along with the production of large quantities of drugs and chemicals.