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Published online by Cambridge University Press:  08 March 2007

Paul Trayhurn ,
P. C. M. Simons ,
H. A. J. Versteegh ,
A. W. Jongbloed ,
P. A. Kemme ,
P. Slump ,
K. D. Bos ,
M. G. E. Wolters ,
R. F. Beudeker  and
G. J. Verschoor
Paul Trayhurn
Affiliation:
Editor-in-Chief
P. C. M. Simons
Affiliation:
Spelderholt Centre for Poultry Research and Information Services, Spelderholt 9, 7361 DA Beekbergen, The Netherlands
H. A. J. Versteegh
Affiliation:
Spelderholt Centre for Poultry Research and Information Services, Spelderholt 9, 7361 DA Beekbergen, The Netherlands
A. W. Jongbloed
Affiliation:
Research Institute for Livestock Feeding and Nutrition, PO Box 160, AD Lelystad, The Netherlands
P. A. Kemme
Affiliation:
Research Institute for Livestock Feeding and Nutrition, PO Box 160, AD Lelystad, The Netherlands
P. Slump
Affiliation:
TNO CIVO-Institutes, PO Box 360, 3700 AJ Zeist, The Netherlands
K. D. Bos
Affiliation:
TNO CIVO-Institutes, PO Box 360, 3700 AJ Zeist, The Netherlands
M. G. E. Wolters
Affiliation:
TNO CIVO-Institutes, PO Box 360, 3700 AJ Zeist, The Netherlands
R. F. Beudeker
Affiliation:
Gist-brocades, PO Box 1, 2600 MA Delft, The Netherlands
G. J. Verschoor
Affiliation:
Gist-brocades, PO Box 1, 2600 MA Delft, The Netherlands
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Abstract

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Techniques have been developed to produce microbial phytase for addition to diets for simple-stomached animals, with the aim to improve phosphorus availability from phytate-P in plant sources. The activityof the crude microbial phytase showed pH optima at pH 5-5 and 2·5. The enzyme was able to degradephytate in vitro in soya-bean meal, maize and a liquid compound feed for pigs. When microbial phytasewas added to low-P diets for broilers the availability of P increased to over 60 % and the amount of Pin the droppings decreased by 50%. The growth rate and feed conversion ratio on the low-P dietscontaining microbial phytase were comparable to or even better than those obtained on control diets.Addition of microbial phytase to diets for growing pigs increased the apparent absorbability of P by24%. The amount of P in the faeces was 35% lower.

Keywords

Phosphorus availabilityMicrobial phytaseBroilersPigs
Type
Other
Information
British Journal of Nutrition , Volume 93 , Issue 1 , January 2005 , pp. 136 - 152
Copyright
Copyright © The Nutrition Society 2005

References

Simons, PC, Versteegh, HA, Jongbloed, AW, Kemme, PA, Slump, P, Bos, KD, Wolters, MG, Beudeker, RF & Verschoor, GJ (1990) Improvement of phosphorus availability by microbial phytase in broilers and pigs. Br J Nutr 64, 525–540.CrossRefGoogle ScholarPubMed
Cawley, R. W. & Mitchell, T. A. (1968). Inhibition of wheat a-amylase by bran phytic acid. Journal of the Science of Food and Agriculture 19, 106–108.CrossRefGoogle Scholar
Chappie, R. P., Yen, J. T. & Veum, T. L. (1979). Effect of phosphorus levels and live yeast culture on phosphorusutilization in heavy finishing pigs. Journal of Animal Science 49, Suppl. 1, 99–100 Abstr.Google Scholar
Cromwell, G. L. & Stahly, T. S. (1978). Study finds live yeast ineffective for swine use. Feedstuffs 50, 14.Google Scholar
Jongbloed, A. W. (1987). Phosphorus in the feeding of pigs. Effect of diet on the absorption of phosphorus bygrowing pigs. PhD Thesis, IVVO Lelystad.Google Scholar
Knuckles, B. E. & Betschart, A. A. (1987). Effect of phytate and other myo-inositol phosphate esters on αamylase digestion of starch. Journal of Food Science 52, 719–721.CrossRefGoogle Scholar
Nelson, T. S., Shieh, T. R., Wodzinski, R. J. & Ware, J. H. (1968). The availability of phytate phosphorus in soyabean m eal before and after treatment with a mold phytase. Poultry Science 47, 1842–1848.CrossRefGoogle Scholar
Nelson, T. S., Shieh, T. R., Wodzinski, R. J. & Ware, J. H. (1971). Effect of supplemental phylase on the utilization of phytate phosphorus by chicks. Journal of Nutrition 101, 1289–1293.CrossRefGoogle ScholarPubMed
Olsen, S. R. & Sommers, L. E. (1982). Phosphorus. In Methods of Soil Analysis, Part 2, Chemical and Microbiological Properties, pp. 403–430 [Page, A. L., Miller, R. H. and Keeney, D. R., editors]. Madison, Wisconsin.Google Scholar
Oshima, M., Taylor, T. G. & Williams, A. (1964). Variations in the concentration of phytic acid in the blood ofthe domestic fowl. Biochemical Journal 92, 42–46.CrossRefGoogle Scholar
Phillippy, B. Q. & Johnston, M. R. (1985). Determination of phytic acid in foods by ion chromatography with post-column derivatization. Journal of Food Science 50, 541–542.CrossRefGoogle Scholar
Shurson, G. C, Ku, P. K. & Miller, E. R. (1984). Evaluation of a yeast phytase product for improving phytate phosphorus bioavailability in swine diets. Journal of Animal Science 59, Suppl. 1, 106 Abstr.Google Scholar
Wise, A. (1983). Dietary factors determining the biological activities of phytase. Nutrition Abstracts and Reviews 53, 791–806.Google Scholar