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Phosphorus kinetics in lambs fed different levels of dicalcium phosphate

Published online by Cambridge University Press:  01 May 2007

R. S. DIAS ,
E. KEBREAB ,
D. M. S. S. VITTI ,
F. P. PORTILHO ,
H. LOUVANDINI  and
J. FRANCE
R. S. DIAS
Affiliation:
Animal Nutrition Laboratory, Centro de Energia Nuclear na Agricultura, Caixa Postal 96, CEP 13400-970, Piracicaba, SP, Brazil Centre for Nutrition Modelling, Department of Animal and Poultry Science, University of Guelph, Guelph, Ontario N1G 2W1, Canada
E. KEBREAB
Affiliation:
Centre for Nutrition Modelling, Department of Animal and Poultry Science, University of Guelph, Guelph, Ontario N1G 2W1, Canada Departments of Animal and Plant Science, University of Manitoba, Winnipeg, Manitoba R3T 2N2, Canada
D. M. S. S. VITTI
Affiliation:
Animal Nutrition Laboratory, Centro de Energia Nuclear na Agricultura, Caixa Postal 96, CEP 13400-970, Piracicaba, SP, Brazil
F. P. PORTILHO
Affiliation:
Faculdade de Agronomia e Medicina Veterinária, Universidade de Brasília, Caixa Postal 04508, CEP 70910-970, Brasília-DF, Brazil
H. LOUVANDINI
Affiliation:
Faculdade de Agronomia e Medicina Veterinária, Universidade de Brasília, Caixa Postal 04508, CEP 70910-970, Brasília-DF, Brazil
J. FRANCE*
Affiliation:
Centre for Nutrition Modelling, Department of Animal and Poultry Science, University of Guelph, Guelph, Ontario N1G 2W1, Canada
*
*To whom all correspondence should be addressed. Email: jfrance@uoguelph.ca
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Summary

The purpose of the current work was to study phosphorus (P) metabolism in growing sheep supplemented with different levels of dicalcium phosphate using an extant mathematical model. Twelve male non-castrated Santa Inês sheep, weighing 23 (±2·2) kg, received a basal diet unsupplemented or supplemented with dicalcium phosphate to provide 1·5, 3·0, 4·5 g of P/animal per day (treatments T1 to T4, respectively). After 3 weeks adaptation, 7·4 MBq of 32P was injected into the jugular vein of each animal. Samples of blood, faeces and urine were collected every day during a 7-day period and thereafter the animals were sacrificed and samples from liver, kidney, heart, muscle and bone were collected for specific activity and inorganic P determinations. The flows between gut and plasma were similar for each treatment except for T1, which showed the lowest values for both flows (P<0·05). The amount of P accreted to soft tissue (F42) was different among treatments, however net tissue retention was similar for all treatments. Total P retained was highest for T4 and lowest as well as negative for T1 and T2. Phosphorus accreted to bone (F32) was different among treatments and contributed to the different net bone retentions. The highest value of F32 was reached by animals on T4, whilst the lowest values were found for animals on T1. Despite having the highest value of F32, it should be noted that animals on T4 excreted the most P in faeces. Considering concerns about environmental P pollution, it is important to be aware that the treatment which provided the highest value for net bone P retention and for F42 also led to the highest value of P excreted in faeces. Therefore, the current study suggests that T3 provided the best P level for this category of animal since P accreted to bone and tissue indicated that P absorption was adequate to attend to P requirements.

Type
Animals
Information
The Journal of Agricultural Science , Volume 145 , Issue 5 , October 2007 , pp. 509 - 516
Copyright
Copyright © Cambridge University Press 2007

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References

REFERENCES

Association of Official Analytical Chemists(1995). Official Methods of Analysis of AOAC, 16th edn. Arlington, Virginia: Association of Official Analytical Chemists International.Google Scholar
Agricultural and Food Research Council (1991). AFRC Technical Committee on Response to Nutrients. A reappraisal of the calcium and phosphorus requirements of sheep and cattle. Nutrition Abstracts and Reviews (Series B): Livestock Feeds and Feeding 61, 573–612.Google Scholar
Bravo, D., Sauvant, D., Bogaert, C. & Meschy, F. (2003). III. Quantitative aspects of phosphorus excretion in ruminants. Reproduction Nutrition and Development 43, 285–300.CrossRefGoogle ScholarPubMed
Braithwaite, G. D. (1975). Studies on the absorption and retention of calcium and phosphorus by young and mature Ca-deficient sheep. British Journal of Nutrition 34, 311–324.CrossRefGoogle Scholar
Braithwaite, G. D. (1983). Calcium and phosphorus requirements of the ewe during pregnancy and lactation. 2. Phosphorus. British Journal of Nutrition 50, 723–736.CrossRefGoogle ScholarPubMed
Dias, R. S., Kebreab, E., Vitti, D. M. S. S., Roque, A. P., Bueno, I. C. S. & France, J. (2006). A revised model for studying phosphorus and calcium kinetics in growing sheep. Journal of Animal Science 84, 2787–2794.CrossRefGoogle ScholarPubMed
Ekelund, A., Sporndly, R., Valk, H. & Murphy, M. (2003). Influence of feeding various phosphorus sources on apparent digestibility of phosphorus in dairy cows. Animal Feed Science and Technology 109, 95–104.CrossRefGoogle Scholar
Ekelund, A., Sporndly, R., Valk, H. & Murphy, M. (2005). Effects of varying monosodium phosphate intake on phosphorus excretion in dairy cows. Livestock Production Science 96, 301–306.CrossRefGoogle Scholar
Ekelund, A., Sporndly, R. & Holtenius, K. (2006). Influence of low phosphorus intake during early lactation on apparent digestibility of phosphorus and bone metabolism in dairy cows. Livestock Science 99, 227–236.CrossRefGoogle Scholar
Fiske, C. H. & Subbarow, Y. (1925). The colorimetric determination of phosphorus. Journal of Biological Chemistry 66, 375–400.CrossRefGoogle Scholar
Grace, N. D. (1981). Phosphorus kinetics in the sheep. British Journal of Nutrition 45, 367–374.CrossRefGoogle ScholarPubMed
Kleiber, M., Smith, A. H., Ralston, N. P. & Black, A. L. (1951). Radiophosphorus (P32) as tracer for measuring endogenous phosphorus in cow's feces. Journal of Nutrition 45, 253–256.CrossRefGoogle ScholarPubMed
Knowlton, K. F. & Herbein, J. H. (2002). Phosphorus partitioning during early lactation in dairy cows fed diets varying in phosphorus content. Journal of Dairy Science 85, 1227–1236.CrossRefGoogle ScholarPubMed
Lofgreen, G. P. & Kleiber, M. (1953) The availability of phosphorus in alfalfa hay. Journal of Animal Science 12, 366–371.CrossRefGoogle Scholar
Mertens, D. R. (2002). Gravimetric determination of amylase-treated neutral detergent fibre in feeds using refluxing in beakers or crucibles: collaborative study. Journal of AOAC International 82, 1217–1240.Google Scholar
Morse, D., Head, H. H., Wilcox, C. J., Van horn, H. H., Hissem, C. D. & Harris, B. Jr. (1992). Effects of concentration of dietary phosphorus on amount and route of excretion. Journal of Dairy Science 75, 3039–3049.CrossRefGoogle ScholarPubMed
National Research Council (1985). Nutrient Requirement of Sheep. 6th revised edition. Washington, DC: National Academy Press.Google Scholar
National Research Council (2001). Nutrient requirements of dairy cattle. 7th revised edition. Washington, DC: National Academy Press.Google Scholar
Sarruge, J. R. & Haag, H. P. (1974). Análises químicas em plantas. In Determinação colorimétrica do fósforo, pp. 6–58. Piracicaba, Brazil: ESALQ, Departamento de Química.Google Scholar
SAS Institute Inc. (1999). SAS/STAT User's Guide version 8. Cary, North Carolina: SAS Institute Inc.Google Scholar
Spiekers, H., Brintup, R., Balmelli, M. & Pfeffer, E. (1993). Influence of dry matter intake on faecal phosphorus losses in dairy cows fed rations low in phosphorus. Journal of Animal Physiology and Animal Nutrition 69, 37–43.CrossRefGoogle Scholar
Terence, C. (2001). Evolving policies to regulate pollution from animal feeding operations. Environmental Management 28, 599–609.Google Scholar
Ternouth, J. H. (1990). Phosphorus and beef production in northern Australia. 3. Phosphorus in cattle – a review. Tropical Grassland 24, 159–169.Google Scholar
Ternouth, J. H. & Budhi, S. P. S. (1996). Effects of dietary phosphorus deficiency in pregnant and lactating ewes. Australian Journal of Experimental Agriculture 36, 137–144.CrossRefGoogle Scholar
Ternouth, J. H. & Sevilla, C. C. (1984). Effects of phosphorus deficiency on food intake, growth and absorption of calcium and phosphorus by lambs. Canadian Journal of Animal Science 64, 221–222.CrossRefGoogle Scholar
Valk, H. & Beynen, A. C. (2003). Proposal for the assessment of phosphorus requirements of dairy cows. Livestock Production Science 79, 267–272.CrossRefGoogle Scholar
Valk, H., Sebek, L. B. J. & Beynen, A. C. (2002). Influence of phosphorus intake on excretion and blood plasma and saliva concentrations of phosphorus in dairy cows. Journal of Dairy Science 85, 2642–2649.CrossRefGoogle ScholarPubMed
Vitti, D. M. S. S., Kebreab, E., Lopes, J. B., Abdalla, A. L., de Carvalho, F. F. R., de Resende, K. T., Crompton, L. A. & France, J. (2000). A kinetic model of phosphorus metabolism in growing goats. Journal of Animal Science 78, 2706–2712.CrossRefGoogle ScholarPubMed
Wu, Z., Satter, L. D. & Soja, R. (2000). Milk production, reproductive performance, and fecal excretion of phosphorus by dairy cows fed three amounts of phosphorus. Journal of Dairy Science 83, 1028–1041.CrossRefGoogle ScholarPubMed
Wu, Z., Satter, L. D., Blohowiak, A. J., Stauffacher, R. H. & Wilson, J. H. (2001). Milk production, estimated phosphorus excretion, and bone characteristics of dairy cows fed different amounts of phosphorus for two or three years. Journal of Dairy Science 84, 1738–1748.CrossRefGoogle ScholarPubMed
Wu, Z. (2005). Utilization of phosphorus in lactating cows fed varying amounts of phosphorus and sources of fiber. Journal of Dairy Science 88, 2850–2859.CrossRefGoogle ScholarPubMed