Dicalcium phosphate

Effects of microbial phytase on apparent and standardized total tract digestibility of calcium in calcium supplements fed to growing pigs

Calcium supplementation is important for swine diets because most commonly used feed ingredients have low concentrations of calcium. In a typical corn-soybean meal diet for a growing pig, the corn and soybean meal contribute only about 16% of the total calcium, with the rest coming from supplements. Apparent total tract digestibility (ATTD) values for calcium have not been reported for many common ingredients, and no values for the standardized total tract digestibility (STTD) of calcium have been reported. Therefore, an experiment was conducted to determine the ATTD and STTD of calcium in five calcium supplements.

An additional objective was to test the hypothesis that inclusion of microbial phytase in the diets increases the ATTD and STTD of calcium. Results of previous research has indicated that inclusion of microbial phytase in swine diets often increases the digestibility of calcium, but the effect of phytase on the STTD of calcium in individual ingredients has not been reported.

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Effects of microbial phytase on apparent and standardized total tract digestibility of calcium in calcium supplements fed to growing pigs

González-Vega, J. C., C. L. Walk, and H. H. Stein. 2014. Effects of microbial phytase on apparent and standardized total tract digestibility of calcium in calcium supplements fed to growing pigs. J. Anim. Sci. 92(Suppl. 2):36 (Abstr.) Link to abstract (.pdf)

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Comparison of values for standardized total tract digestibility and relative bioavailability of phosphorus in dicalcium phosphate and distillers dried grains with solubles fed to growing pigs

Baker, S. R., B. G. Kim, and H. H. Stein. 2013. Comparison of values for standardized total tract digestibility and relative bioavailability of phosphorus in dicalcium phosphate and distillers dried grains with solubles fed to growing pigs. J. Anim. Sci. 91:203-210. Link to full text (.pdf)

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Standardized total tract digestibility and relative bioavailability of phosphorus in dicalcium phosphate and corn distillers dried grains with solubles fed to growing pigs

Baker, S. R., B. G. Kim, and H. H. Stein. 2011. Standardized total tract digestibility and relative bioavailability of phosphorus in dicalcium phosphate and corn distillers dried grains with solubles fed to growing pigs. J. Anim. Sci. 89(E-Suppl. 2):120 (Abstr.) Link to abstract (.pdf)

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Relative bioavailability of phosphorus in inorganic phosphorus sources fed to growing pigs

Petersen, G. I., C. Pedersen, M. D. Lindemann and H. H. Stein. 2011. Relative bioavailability of phosphorus in inorganic phosphorus sources fed to growing pigs. J. Anim. Sci. 89:460-466. Link to full text (.pdf)

Relative availability of phosphorus in feed phosphates by growing pigs

Petersen, G. I., C. Pedersen, and H. H. Stein. 2005. Relative availability of phosphorus in feed phosphates by growing pigs. J. Anim. Sci. 83(Suppl. 2):41 (Abstr.) Link to abstract (.pdf)

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