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      Fractionation of nitrogen isotopes by animals: a further complication to the use of variations in the natural abundance of ¹⁵N for tracer studies

      Steele, K.W.; Daniel, Roy M.
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      Fractionation of nitrogen isotopes.pdf
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      DOI
       10.1017/S002185960004853X
      Link
       journals.cambridge.org
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      Steele, K.W. & Daniel, R.M. (1978). Fractionation of nitrogen isotopes by animals: a further complication to the use of variations in the natural abundance of ¹⁵N for tracer studies. The Journal of Agricultural Science, 90, 7-9.
      Permanent Research Commons link: https://hdl.handle.net/10289/4600
      Abstract
      A study of the fractionation of nitrogen isotopes in the diet by cattle is described and the results discussed. Compared with the diet, urine had a lower ratio of ¹⁵N to ¹⁴N, but faeces, blood and milk all had a higher ratio. It is argued that the use of natural ¹⁵N as a tracer in grazed ecosystems is more complicated than was at first thought.
      Date
      1978
      Type
      Journal Article
      Publisher
      Cambridge University Press
      Rights
      This article has been published in the journal: The Journal of Agricultural Science. © 1978 Cambridge University Press.
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      • Science and Engineering Papers [3084]
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