PMID: 9638303Jun 25, 1998Paper

Inevitable losses of phosphorus in pigs, estimated from balance data using diets deficient in phosphorus

Archiv für Tierernährung
M RodehutscordE Pfeffer

Abstract

Faecal losses of phosphorus (P) were determined in 66 growing pigs weighing between 30 and 70 kg on a semi-purified diet containing less than 1.3 g P/kg DM. Regression analysis showed that the coefficient of absorption of P from this diet was 82.5% and that inevitable faecal P excretion of pigs fed this diet was, on average, 5.9 mg/kg BW.d-1 with no statistically significant effect of body weight on faecal P excretion within the range of body weight studied. Semi-purified diets almost identical in composition were also fed to 5 piglets weighing about 20 kg and to 4 heavy pigs of about 150 kg BW. Inevitable daily faecal losses of P were calculated to be 6.2 mg/kg BW in piglets and 6.8 mg/kg BW in the heavy pigs. It is concluded that inevitable faecal losses of P do depend on body weight and that the variation faecal P excretion was too great to allow detecting this effect within the limited range between 30 and 70 kg BW. Further diets were obtained by blending various ingredients into the semi-purified diet. From a total of 262 balances measured under the condition of suboptimal P supply it is concluded that daily inevitable urinary losses of P depend on body weight and, on average, amount to 0.35 mg/kg BW. It is concluded that ...Continue Reading

References

Jan 1, 1997·Archiv für Tierernährung·M RodehutscordC Hof

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Citations

Jun 14, 2014·Animal : an International Journal of Animal Bioscience·V SymeouI Kyriazakis
Jun 18, 2011·Journal of Animal Science·M P Létourneau-MontminyC Pomar
Sep 7, 2021·The British Journal of Nutrition·Mariola Grez-Capdeville, Thomas D Crenshaw

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