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Excess minerals in the diet and water of animals can have an adverse effect on animal health, consumers, and the environment. Preventing unsafe mineral exposure is a fundamental part of animal nutrition and management. At the request of the Food and Drug Administration, the National Academies convened a committee to make recommendations on animal tolerances and toxic dietary levels, updating a 1980 report on mineral tolerance in domestic animals. Based on a review of current scientific data and information, the report sets a "maximum tolerable level" (MTL) for each mineral as it applies to the diets of farm animals, poultry, and fish. The report includes an analysis of the effects of toxic levels in animal diets, and it identifies elements that pose potential human health concerns. The report recommends research that includes a better characterization of animal exposure to minerals through feedstuffs; a better understanding of the relationship between mineral concentrations in feed and water and the levels in consumer products such as meat, milk, and eggs; and more research on the maximum tolerable level of minerals for aquatic and companion animals.
A fascinating look at an emperor, a saint, and the world they both inhabited
Based on papers from the 3rd International Workshop on African Archaeobotany, Frankfurt, Germany, July 5-7, 2000
Martin, surgeon on the tournament circuit at the end of the twelth century becomes surgeon to the leaders of the Fourth Crusade which was diverted by the Doge of Venice away from their intention of taking Jerusalem from the Muslims to taking Constantinople from other Christians. Apalled at what has been done, Martin seeks to make amends.
If Charles Théveneau de Morande was a character in a novel, he would be considered the ultimate anti-hero. Morande's historical significance far transcends his success as a blackmailer and scandalous pamphleteer. Having extorted the French monarchy he turned coat and during the War of American Independence and throughout the 1780s was France's leading political spy in London. In addition, he was a highly successful police agent among his fellow exiles and one of the most influential journalists of his time. His enemies or victims - who invariably suffered intense damage to their reputations - included many of the most colourful figures of his day. Nevertheless, Morande survived the wrath of both Louis XV and the revolution, outlived his enemies, and died peacefully in his bed. Morande's life story is a tale of intrigue, blackmail, espionage, duels, kidnap, murder, politics, conspiracy and crime. At the same time, it offers a chance to examine some of the most important issues of French history and revolution.
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