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Compound feed is fodder that is blended from various raw materials and additives. These blends are formulated according to the specific requirements of the target animal. They are manufactured by feed compounders as meal type<\/em>, pellets<\/em> or crumbles<\/em>. The main ingredients used in commercially prepared feed are the feed grains, which include corn<\/a>, soybeans<\/a>, sorghum<\/a>, oats<\/a>, and barley<\/a>.<\/span><\/p>\n Compound feed may also include premixes<\/a>, which may also be sold separately. Premixes are composed of microingredients such as vitamins, minerals, chemical preservatives, antibiotics<\/a>, fermentation products, and other ingredients that are purchased from premix companies, usually in sacked form, for blending into commercial rations. Because of the availability of these products, farmers who uses their own grain can formulate their own rations and be assured that their animals are getting the recommended levels of minerals and vitamins,[4]<\/a> although they are still subject to the Veterinary Feed Directive<\/a>.<\/span><\/p>\n According to the American Feed Industry Association<\/a>, as much as $20 billion worth of feed ingredients are purchased each year. These products range from grain mixes to orange rinds and beet pulps. The feed industry is one of the most competitive businesses in the agricultural sector and is by far the largest purchaser of U.S. corn, feed grains, and soybean meal. Tens of thousands of farmers with feed mills on their own farms are able to compete with huge conglomerates with national distribution. Feed crops generated $23.2 billion in cash receipts on U.S. farms in 2001. At the same time, farmers spent a total of $24.5 billion on feed that year.<\/span><\/p>\n In 2011, around 734.5 million tons of feed were produced annually around the world.[5]<\/a><\/span><\/p>\n \u00a0<\/p>\n \u00a0<\/p>\n \u00a0<\/p>\n The beginning of industrial-scale production of animal feeds can be traced back to the late 19th century, around the time advances in human and animal nutrition were able to identify the benefits of a balanced diet<\/a> and the importance of the role processing of certain raw materials played. Corn gluten<\/a> feed was first manufactured in 1882, while leading world feed producer Purina<\/a> Feeds was established in 1894 by William Hollington Danforth. Cargill<\/a>, which was mainly dealing in grains from its beginnings in 1865, started to deal in feed at about 1884.[citation needed<\/em><\/a>]<\/span><\/p>\n The feed industry expanded rapidly in the first quarter of the 20th century, with Purina expanding its operations into Canada, and opened its first feed mill<\/a> in 1927 (which is still in operation). In 1928, the feed industry was revolutionized by the introduction of the first pelleted feeds\u00a0\u2013 Purina Checkers.[citation needed<\/em><\/a>]<\/span><\/p>\n<\/p><\/div>\nHistory<\/strong><\/span><\/h2>\n