Recent progress in exploring the essentiality of the non-metallic ultratrace element arsenic to the nutrition of animals and man

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  • Anke Manfred
    Institute of Nutrition and Environment, Faculty of Biology and Pharmacy, Friedrich Schiller University Jena
  • Müller Ralf
    Society of Ecology and Environmental Chemistry Ltd.
  • Schäfer Ulrich
    Institute of Nutrition and Environment, Faculty of Biology and Pharmacy, Friedrich Schiller University Jena

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Semisynthetic feeds with < 35 μg arsenic (As)/kg feed dry matter (DM) reduced the intrauterine growth rate, success of first insemination, conception rate and milk production, and increased the abortion rate and mortality of goats, minipigs, rats and chickens. None of the pregnant, As-deficient goats survived the second lactation. Death regularly occurred between the 17th and 35th day of lactation; typically, animals suffered spasms and died shortly thereafter. The normative requirement of goats, minipigs, rats and chickens is < 50 μg As/kg diet DM, while that of human adults is < 10 μg/day.

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