Animal Bioscience

Asian Australasian Association of Animal Production Societies (아세아태평양축산학회)
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Prediction models for phosphorus excretion of pigs

  • Received : 2024.04.06
  • Accepted : 2024.05.11
  • Published : 2024.10.01
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Abstract

Objective: The present study aimed to measure fecal and urinary phosphorus (P) excretion from pigs and to develop prediction models for P excretion of pigs. Methods: A total of 96 values for P excretions were obtained from pigs of 15 to 93 kg body weight (BW) fed 12 diets in four experiments and were used to develop the prediction models. All experimental diets contained exogenous phytase at 500 phytase units per kg. Body weight of pigs and dietary P concentrations were used as independent variables in the prediction models. Results: The BW, feed intake, and P intake were positively correlated with total (fecal plus urinary) P excretions (r = 0.80, 0.91, and 0.94, respectively; p<0.001). The models for estimating P excretion were: fecal P excretion (g/d) = -0.654-0.000618×BW2+0.273×BW×dietary P concentration (R2 = 0.83; p<0.001); urinary P excretion (g/d) = 0.045+0.00781×BW×dietary P concentration (R2 = 0.15; p<0.001); total P excretion (g/d) = -0.598-0.000613×BW2+0.280×BW×dietary P concentration (R2 = 0.86; p<0.001) where the BW of pigs and dietary P concentration are expressed as kg and % (as-fed basis), respectively. Based on the developed prediction models, the estimated annual fecal, urinary, and total P excretion for a market pig was 1.24, 0.09, and 1.33 kg/yr, respectively. Conclusion: The P excretions in market pigs can be estimated using BW of pigs and dietary P concentration. In the present model, a market pig excretes 1.24 kg of fecal P and 0.09 kg of urinary P per year.

Keywords

Acknowledgement

This work was carried out with the support of "Cooperative Research Program for Agriculture Science & Technology Development (Project No. PJ017087)" Rural Development Administration, Republic of Korea.

References

  1. Sung JY, Kim BG. Prediction models for apparent and standardized total tract digestible phosphorus in swine diets. Anim Feed Sci Technol 2019;255:114224. https://doi.org/10.1016/j.anifeedsci.2019.114224
  2. NRC. Nutrient requirements of swine. 11th ed. Washington, DC, USA: National Academy Press; 2012.
  3. Son AR, Shin SY, Kim BG. Standardized total tract digestibility of phosphorus in copra expellers, palm kernel expellers, and cassava root fed to growing pigs. Asian-Australas J Anim Sci 2013;26:1609-13. https://doi.org/10.5713/ajas.2013.13517
  4. Lee SA, Lopez DA, Stein HH. Mineral composition and phosphorus digestibility in feed phosphates fed to pigs and poultry. Anim Biosci 2023;36:167-74. https://doi.org/10.5713/ab.22.0322
  5. Portejoie S, Dourmad JY, Martinez J, Lebreton Y. Effect of lowering dietary crude protein on nitrogen excretion, manure composition and ammonia emission from fattening pigs. Livest Prod Sci 2004;91:45-55. https://doi.org/10.1016/j.livprodsci.2004.06.013
  6. Bridges TC, Turner LW, Cromwell GL, Pierce JL. Modeling the effects of diet formulation on nitrogen and phosphorus excretion in swine waste. Appl Eng Agric 1995;11:731-9. https://doi.org/10.13031/2013.25797
  7. Lynch MB, Sweeney T, Callan JJ, Flynn B, O'Doherty JV. The effect of high and low dietary crude protein and inulin supplementation on nutrient digestibility, nitrogen excretion, intestinal microflora and manure ammonia emissions from finisher pigs. Animal 2007;1:1112-21. https://doi.org/10.1017/S1751731107000407
  8. Dourmad JY, Guingand N, Latimier P, Seve B. Nitrogen and phosphorus consumption, utilisation and losses in pig production: France. Livest Prod Sci 1999;58:199-211. https://doi.org/10.1016/S0301-6226(99)00009-3
  9. Jongbloed AW, Poulsen HD, Dourmad JY, van der Peet-Schwering CMC. Environmental and legislative aspects of pig production in The Netherlands, France and Denmark. Livest Prod Sci 1999;58:243-9. https://doi.org/10.1016/S0301-6226(99)00012-3
  10. Carter SD, Cromwell GL, Westerman PW, Park JS, Pettey LA. Prediction of nitrogen, phosphorus, and dry matter excretion by swine based on diet chemical composition, feed intake, and nutrient retention. In: Proceedings of the 9th International Symposium on Animal, Agriculture, and Food Processing Wastes; 2003 Oct 12-15: Raleigh, NC, USA. Saint Joseph MI, USA: American Society of Agricultural and Biological Engineers; 2003. pp. 285-95.
  11. Son J, Kim BG. Lowering dietary crude protein concentration decreases nitrogen excretion and pH of urine and slurry in 15-kg nursery pigs. J Anim Sci 2023;101(Suppl 2):129-30. https://doi.org/10.1093/jas/skad341.144
  12. Kim BG, Son J. Nitrogen excretion and urine pH in growing pigs decreased by reducing dietary protein concentrations. J Anim Sci 2023;101(Suppl 3):567. https://doi.org/10.1093/jas/skad281.664
  13. Kong C, Adeola O. Evaluation of amino acid and energy utilization in feedstuff for swine and poultry diets. Asian-Australas J Anim Sci 2014;27:917-25. https://doi.org/10.5713/ajas.2014.r.02
  14. AOAC. Official methods of analysis of AOAC international. 21st ed. Gaithersburg MD, USA: AOAC International; 2019.
  15. SAS. Base SAS 9.4 procedure guide: statistical procedure. Cary, NC, USA: SAS Institute Inc. ;2012.
  16. Ahn JY, Kim H, Kim BG. Estimation of annual phosphorus excretion from pigs in Korea based on phosphorus and phytate-phosphorus concentrations in commercial diets. In: Proceedings of 2023 Annual Congress of KSAST; 2023 July 5-7: Gwangju, Korea. Seoul, Korea: Korean Society of Animal Science and Technology. 203 p.
  17. NIAS. Korean feeding standard for swine. 4th ed. Wanju, Korea: National Institute of Animal Science; 2022.
  18. Passos AA, Moita VHC, Kim SW. Individual or combinational use of phytase, protease, and xylanase for the impacts on total tract digestibility of corn, soybean meal, and distillers dried grains with soluble fed to pigs. Anim Biosci 2023;36:1869-79. https://doi.org/10.5713/ab.23.0212
  19. Hong B, Kim BG. Supplemental phytase increases phosphorus digestibility in pigs regardless of phytase source or feed pelleting. Anim Feed Sci Technol 2021;276:114901. https://doi.org/10.1016/j.anifeedsci.2021.114901
  20. Kebreab E, Strathe AB, Yitbarek A, et al. Modeling the efficiency of phosphorus utilization in growing pigs. J Anim Sci 2011;89:2774-81. https://doi.org/10.2527/jas.2009-2550
  21. Symeou V, Leinonen I, Kyriazakis I. Modelling phosphorus intake, digestion, retention and excretion in growing and finishing pigs: model description. Animal 2014;8:1612-21. https://doi.org/10.1017/S1751731114001402
  22. Rosenfelder-Kuon P, Siegert W, Rodehutscord M. Effect of microbial phytase supplementation on P digestibility in pigs: a meta-analysis. Arch Anim Nutr 2020;74:1-18. https://doi.org/10.1080/1745039X.2019.1687249
  23. Partanen K, Siljander-Rasi H, Karhapaa M, Ylivainio K, Tupasela T. Responses of growing pigs to different levels of dietary phosphorus-performance, bone characteristics, and solubility of faecal phosphorus. Livest Sci 2010;134:109-12. https://doi.org/10.1016/j.livsci.2010.06.113
  24. Rodehutscord M, Faust M, Pfeffer E. The course of phosphorus excretion in growing pigs fed continuously increasing phosphorus concentrations after a phosphorus depletion. Arch Anim Nutr 1999;52:323-34. https://doi.org/10.1080/17450399909386171
  25. Brooks CC. Effect of sex, fat, fiber, molasses and thyroprotein on digestibility of nutrients and performance of growing swine. J Anim Sci 1967;26:495-9. https://doi.org/10.2527/jas1967.263495x