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Influence of phytate on calcium excretion

Published online by Cambridge University Press:  23 November 2017

R. S. Dias ,
D. C. Alves ,
A. P. Roque  and
D. M. S. S. Vitti
R. S. Dias
Affiliation:
Animal Nutrition Laboratory, Center for Nuclear Energy in Agriculture, PO Box 96, CEP 13400-970, SP, Brazil
D. C. Alves
Affiliation:
Animal Nutrition Laboratory, Center for Nuclear Energy in Agriculture, PO Box 96, CEP 13400-970, SP, Brazil
A. P. Roque*
Affiliation:
Animal Nutrition Laboratory, Center for Nuclear Energy in Agriculture, PO Box 96, CEP 13400-970, SP, Brazil
D. M. S. S. Vitti
Affiliation:
Animal Nutrition Laboratory, Center for Nuclear Energy in Agriculture, PO Box 96, CEP 13400-970, SP, Brazil
*
Email: raquelsd@cena.usp.br
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Extract

Concentrate mixtures fed ruminants generally are composed by cereals where phosphorus is present mainly in phytate form or phytin (Maga, 1982). Phytate phosphorus is thought to be completely available to ruminants due to the presence of phytase enzyme that hydrolyzes phytate phosphorus making it available for absorption. Researches have shown that this fact is not always true, depending on different conditions (Park et al., 2000). The aim of this paper was to study the influence of phytate phosphorus on calcium availability.

Type
Poster Presentations
Information
Proceedings of the British Society of Animal Science , Volume 2005 , 2005 , pp. 144
Copyright
Copyright © The British Society of Animal Science 2005

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References

Latta, M., Eskin, M. 1980. A simple and rapid colorimetric method for phytate determination. Journal of Agricultural and Food Chemistry 28: 1313–1315.Google Scholar
Maga, J. 1982. Phytate: Its chemistry, ocurrence, food interactions, nutritional significance, and methods of analysis. 1982. Journal of Agricultural and Food Chemistry. 30: 1–9.Google Scholar
SAS, 1991. Applications Guide 1, 1a ed., NC: SAS Institute Inc. Google Scholar
Park, W. Y.; Matsui, T., Yano, F., Yano, H. 2000. Heat treatment of rapessed meal increases phytate flow into the duodenum of sheep. Animal feed science and technology. 88: 31–37.Google Scholar