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The Effect Of Phytase And Dietary Phosphorus intake on Bone Strength and Total Body Phosphorus of Young Pigs

Published online by Cambridge University Press:  21 November 2017

Naheeda Khan  and
D.J.A. Cole
Naheeda Khan
Affiliation:
Faculty of Agricultural and Food Sciences, University of Nottingham, Sutton Bonington, Leics. LE12 5RD
D.J.A. Cole
Affiliation:
Faculty of Agricultural and Food Sciences, University of Nottingham, Sutton Bonington, Leics. LE12 5RD
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Extract

The dietary phosphorus requirement of young pigs is not well established. Values of a net requirement estimated by the ARC (1981) extend from 2.7 g/day for 5kg pigs to 4.6 g/day for 25kg pigs but current literature suggests that the actual requirement may be lower than this. Although maximum bone mineralization is not necessary for optimum growth, later bone development should not be impaired by a deficiency of phosphorus.

Use of phytase in piglet diets has resulted in increased rate and efficiency of gain (Beers and Jongbloed,1992) and increased metatarsal phosphorus (Young et al, 1993). The enzyme hydrolyzes phytate, releasing phosphorus into the gut, and could thus be used in place of expensive inorganic phosphates. Quantification of phytase/phosphorus substitution is as yet undetermined. Therefore this experiment was conducted to look at the phosphorus requirement for growth and bone development and to assess the effect of phytase on dietary phosphorus requirement.

Type
Pigs
Information
Proceedings of the British Society of Animal Production (1972) , Volume 1994 , March 1994 , pp. 163
Copyright
Copyright © The British Society of Animal Production 1994

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References

Agricultural Research Council (1981) The Nutrient Requirements of Pigs. Commonwealth Agricultural Bureau, Famham Royal, Slough Google Scholar
Beers, S. and Jongbloed, A.W. (1992). Effect of Supplementary Aspergillus niger phytase in diets for piglets on their performance and apparent digestibility of phosphorus. Anim. Prod. 55: 425–430 Google Scholar
Young, L.G., Leunissen, M. and Atkinson, J.L. (1993). Addition of microbial phytase to diets of young pigs. J. Anim. Sci. 71: 2147–2150 Google Scholar