Skip to main content
SpringerLink
Log in

Nitrogen Balance Experiments: some Theoretical Considerations

  • Letter
  • Published:

From Nature

View current issue Submit your manuscript

Abstract

Miller and Payne1 have raised anew the problem of how to explain net protein utilizations (NPU) greater than 100 per cent. They offer a conventional answer, that the metabolic or endogenous loss of nitrogen can be reduced in certain cases and that this results in calculated efficiencies greater than 100 per cent. The examples cited of such high utilizations are of two types where I, Bal, and M are nitrogen intake, nitrogen balance, and endogenous urinary and faecal nitrogen excretion, respectively, and a, b and c are constants.

This is a preview of subscription content, log in via an institution to check access.

Access this article

Log in via an institution

Price excludes VAT (USA)
Tax calculation will be finalised during checkout.

Instant access to the full article PDF.

Institutional subscriptions

Similar content being viewed by others

References

  1. Miller, D. S., and Payne, P. R., Nature, 204, 480 (1964).

    Article  ADS  CAS  Google Scholar 

  2. Allison, J. B., Seeley, R. D., Brown, J. H., and Anderson, J. A., J. Nutr., 31, 237 (1946).

    Article  CAS  Google Scholar 

  3. Anderson, J. T., and Nasset, E. S., J. Nutr., 40, 625 (1950).

    Article  CAS  Google Scholar 

  4. Forbes, R. M., Vaughan, L., and Yohe, M., J. Nutr., 64, 291 (1958).

    Article  CAS  Google Scholar 

  5. Bosshardt, D. K., Ydse, L. C., Ayres, M. M., and Barnes, R. H., J. Nutr., 31, 23 (1946).

    Article  CAS  Google Scholar 

  6. Benditt, E. P., Woolridge, R. L., Steffee, C. H., and Frazier, L. E., J. Nutr., 40, 335 (1950).

    Article  CAS  Google Scholar 

  7. Krehl, W. A., Sarma, P. S., Teply, L. J., and Elvehjem, C. A., J. Nutr. 31, 85 (1946).

    Article  CAS  Google Scholar 

  8. Mitchell, H. H., J. Biol. Chem., 58, 873 (1924).

    CAS  Google Scholar 

  9. Njaa, L. R., Brit. J. Nutr., 16, 185 (1962).

    Article  Google Scholar 

  10. Miller, D. S., and Payne, P. R., Brit. J. Nutr., 15, 11 (1961).

    Article  CAS  Google Scholar 

  11. Ashworth, U. S., Mo. Agric. Expt. Sta. Res. Bull., No. 228 (1935).

  12. Njaa, L. R., Fiskeridir. Skr., 4, No. 5 (1963).

  13. Bender, A. E., Clin. Chim. Acta, 5, 1 (1960).

    Article  CAS  Google Scholar 

Download references

Author information

Authors and Affiliations

  1. Government Vitamin Laboratory, Norwegian Fisheries Research Institute, Bergen, Norway

    L. R. NJAA

Authors
  1. L. R. NJAA
    View author publications

    You can also search for this author in PubMed Google Scholar

Rights and permissions

Reprints and permissions

About this article

Cite this article

NJAA, L. Nitrogen Balance Experiments: some Theoretical Considerations. Nature 211, 1413–1414 (1966). https://doi.org/10.1038/2111413a0

Download citation

  • Issue Date:

  • DOI: https://doi.org/10.1038/2111413a0

  • Springer Nature Limited

Search

Navigation