Sudan has a large agricultural land with diversified climatic zones which creates a variety of animal resources and recognizes Sudan as one of the countries that promising agricultural potentials with largest population of livestock in Arab World and is second to Ethiopia in Africa. According to recent Ministry of Animal Resources estimates of livestock there are about 130 million heads of animals. Feed constitutes the largest single factor in the cost of production of animal of all kinds. Non conventional by-Products in the livestock feed especially those originating from slaughter of large animals like rumen content is used to reduce the feed cost and consequently cost of producing a unit of the product like milk or meat as well as to fulfill the protein demands of animals. Also its recycling reduces disposal and environmental pollution problem. I would like to express my sincere gratitude to Andrei Fotescu LAP LAMBERT Academic and to manager OmniScriptum AraPers GmbH and Managing Directors Dr. Wolfgang Philipp Müller.