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The effect of dietary intake of phosphorus on true absorption and excretion of phosphorus in Brazilian Santa Ines sheep

Published online by Cambridge University Press:  23 November 2017

D. M. Vitti ,
I. C. S. Bueno ,
J. C. da Silva Filho ,
T. Soares ,
R. Patino Pardo ,
M. E A Nasser ,
E. de Almeida ,
S. Sallam  and
V. Nascimento Filho
D. M. Vitti*
Affiliation:
Center of Nuclear Energy In Agriculture, Piracicaba, Sao Paulo, Brazil
I. C. S. Bueno
Affiliation:
Center of Nuclear Energy In Agriculture, Piracicaba, Sao Paulo, Brazil
J. C. da Silva Filho
Affiliation:
University Federal of Lavras, Lavras, Minas Gerais, Brazil
T. Soares
Affiliation:
Center of Nuclear Energy In Agriculture, Piracicaba, Sao Paulo, Brazil
R. Patino Pardo
Affiliation:
University of Sucre, Colombia, Colombia
M. E A Nasser
Affiliation:
University of Alexandria, Alexandria, Egypt
E. de Almeida
Affiliation:
Center of Nuclear Energy In Agriculture, Piracicaba, Sao Paulo, Brazil
S. Sallam
Affiliation:
University of Alexandria, Alexandria, Egypt
V. Nascimento Filho
Affiliation:
Center of Nuclear Energy In Agriculture, Piracicaba, Sao Paulo, Brazil
*
Email:[email protected]
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Extract

Phosphorus (P) is an essential nutrient in livestock production, involved in most metabolic processes in the body, and with an impact on bone development and growth. Diet supplementation with P can improve productivity, but at excess levels the P utilization can be low, and the high P excretion will lead to environmental pollution (Tamminga, 2003). P supplementation also adds substantially to the cost of feed. Using the isotopic dilution technique (Vitti et al., 2000), we have studied the effect of different P levels in diet on P absorption and excretion in Brazilian sheep, and identified the level at which true P absorption saturates.

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Proceedings of the British Society of Animal Science , Volume 2008 , 2008 , pp. 185
Copyright
Copyright © The British Society of Animal Science 2008

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References

NRC, 2006. Nutrient Requirements of Small Ruminants. Academic Press, Washington, DC.Google Scholar
Tamminga, S., 2003. Pollution due to nutrient losses and its control in European animal production. Livestock Production Science, 84: 101–111.CrossRefGoogle Scholar
Vitti, D.M.S.S.; Kebreab, E.; Lopes, J.B.; Abdalla, A.L.; Carvalhos, F.F.R.; Resende, K.T.; Crompton, L.A.; France, J. 2000. Journal of Animal Science, 78: 2706–2712.Google Scholar