Phosphorus digestibility

Procedures for determining digestibility of amino acids, lipids, starch, fibre, phosphorus, and calcium in feed ingredients fed to pigs

Stein, H. H. 2017. Procedures for determining digestibility of amino acids, lipids, starch, fibre, phosphorus, and calcium in feed ingredients fed to pigs. Anim. Prod. Sci. 57:2317-2324. Link to abstract

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Effects of graded levels of an Escherichia coli phytase on growth performance, apparent total tract digestibility of phosphorus, and on bone parameters of weanling pigs fed phosphorus-deficient corn-soybean meal based diets

She, Y., Y. Liu, J. C. González-Vega, and H. H. Stein. 2017. Effects of graded levels of an Escherichia coli phytase on growth performance, apparent total tract digestibility of phosphorus, and on bone parameters of weanling pigs fed phosphorus-deficient corn-soybean meal based diets. Anim. Feed Sci. Technol. 232:102-109. Link to abstract

Effects of exogenous phytase supplementation on phosphorus metabolism and digestibility of beef cattle

Long, C. J., L. B. Kondratovich, M. F. Westphalen, H. H. Stein, and T. L. Felix. 2017. Effects of exogenous phytase supplementation on phosphorus metabolism and digestibility of beef cattle. Transl. Anim. Sci. 1:168-178. Link to full text (.pdf)

Effects of graded levels of microbial phytase on apparent total tract digestibility of calcium and phosphorus and standardized total tract digestibility of phosphorus in four sources of canola meal and in soybean meal fed to growing pigs

She, Y., Y. Liu, and H. H. Stein. 2017. Effects of graded levels of microbial phytase on apparent total tract digestibility of calcium and phosphorus and standardized total tract digestibility of phosphorus in four sources of canola meal and in soybean meal fed to growing pigs. J. Anim. Sci. 95:2061-2070. Link to abstract

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Effects of exogenous phytase supplementation and dietary phosphorus concentration on metabolism and digestibility of beef cattle

Long, C. J., H. H. Stein, and T. L. Felix. 2017. Effects of exogenous phytase supplementation and dietary phosphorus concentration on metabolism and digestibility of beef cattle. J. Anim. Sci. 95(Suppl. 5):52 (Abstr.) Link to abstract (.pdf)

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Effects of zinc oxide and microbial phytase on digestibility of calcium and phosphorus in maize-based diets fed to growing pigs

Blavi, L., Sola-Oriol, D. Pérez, J. F., and H. H. Stein. 2017. Effects of zinc oxide and microbial phytase on digestibility of calcium and phosphorus in maize-based diets fed to growing pigs. J. Anim. Sci. 95:847-854. Link to abstract

Effects of tallow, choice white grease, palm oil, corn oil, or soybean oil on apparent total tract digestibility of minerals in diets fed to growing pigs

Merriman, L. A., C. L. Walk, C. M. Parsons, and H. H. Stein. 2016. Effects of tallow, choice white grease, palm oil, corn oil, or soybean oil on apparent total tract digestibility of minerals in diets fed to growing pigs. J. Anim. Sci. 94:4231-4238. Link to full text (.pdf)

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Digestibility of energy, amino acids, and phosphorus in a novel source of soy protein concentrate and in soybean meal fed to growing pigs

Oliveira, M. S. and H. H. Stein. 2016. Digestibility of energy, amino acids, and phosphorus in a novel source of soy protein concentrate and in soybean meal fed to growing pigs. J. Anim. Sci. 94:3343-3352. Link to full text (.pdf)

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Effects of high protein canola meal on digestibility of phosphorus and growth performance of weanling pigs

She, Y., H. H. Salgado, D. Li, and H. H. Stein. 2016. Effects of high protein canola meal on digestibility of phosphorus and growth performance of weanling pigs. J. Anim. Sci. 94(E-Suppl. 5):457 (Abstr.) Link to abstract (.pdf)

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Effects of production area and microbial phytase on the apparent and standardized total tract digestibility of phosphorus in soybean meal fed to growing pigs

Sotak-Peper, K. M., J. C. González-Vega, and H. H. Stein. 2016. Effects of production area and microbial phytase on the apparent and standardized total tract digestibility of phosphorus in soybean meal fed to growing pigs. J. Anim. Sci. 94:2397-2402. Link to full text (.pdf)

Effect of fat sources on ATTD of minerals

Merriman, L. A., C. L. Walk, and H. H. Stein. 2016. Effect of fat sources on ATTD of minerals. J. Anim. Sci. 94(Suppl. 2):104 (Abstr.) Link to abstract (.pdf)

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Effects of reducing the particle size of corn grain on the concentration of digestible and metabolizable energy and on the digestibility of energy and nutrients in corn grain fed to growing pigs

Rojas, O. J. and H. H. Stein. 2015. Effects of reducing the particle size of corn grain on the concentration of digestible and metabolizable energy and on the digestibility of energy and nutrients in corn grain fed to growing pigs. Livest. Sci. 181:187-193. Link to full text (.pdf)

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Effect of phytate, microbial phytase, fiber, and soybean oil on calculated values for apparent and standardized total tract digestibility of calcium and apparent total tract digestibility of phosphorus in fish meal fed to growing pigs

González-Vega, J. C., C. L. Walk, and H. H. Stein. 2015. Effect of phytate, microbial phytase, fiber, and soybean oil on calculated values for apparent and standardized total tract digestibility of calcium and apparent total tract digestibility of phosphorus in fish meal fed to growing pigs. J. Anim. Sci. 93:4808-4818. Link to full text (.pdf)

Digestibility of phosphorus in a novel source of soy protein concentrate and in soybean meal fed to weanling pigs

Soy protein concentrate is produced by extracting some of the non-protein components of soybean meal, including soluble carbohydrates, from soybean meal. These soluble carbohydrates include oligosaccharides, which reduce the tolerance of young pigs to conventional soybean meal. With the oligosaccharides removed, soy protein concentrate can be used as a source of protein in diets for weanling pigs.

Most soy protein concentrate is produced using an alcohol extraction process. However, a new source of soy protein concentrate called Nutrivance (Midwest Ag Enterprises Inc., Marshall, MN) has recently been introduced, which uses a process combining non-alcohol extraction and enzymatic treatment of soybean meal. An experiment was conducted to determine the apparent total tract digestibility (ATTD) and standardized total tract digestibility (STTD) of phosphorus in this new ingredient.

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Effect of Sal CURB on digestibility of energy and nutrients by growing pigs

Liu, Y. and H. H. Stein. 2015. Effect of Sal CURB on digestibility of energy and nutrients by growing pigs. J. Anim. Sci. 93(Suppl. s3):855-856 (Abstr.) Link to abstract (.pdf)

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Apparent and standardized total tract digestibility by growing pigs of phosphorus in canola meal from North America and 00-rapeseed meal and 00-rapeseed expellers from Europe without and with microbial phytase

Maison, T., Y. Liu, and H. H. Stein. 2015. Apparent and standardized total tract digestibility by growing pigs of phosphorus in canola meal from North America and 00-rapeseed meal and 00-rapeseed expellers from Europe without and with microbial phytase. J. Anim. Sci. 93:3494-3502. Link to full text (.pdf)

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Effects of microbial phytase on the apparent and standardized total tract digestibility of phosphorus in rice coproducts fed to growing pigs

Casas, G. A. and H. H. Stein. 2015. Effects of microbial phytase on the apparent and standardized total tract digestibility of phosphorus in rice coproducts fed to growing pigs. J. Anim. Sci. 93:3441-3448. Link to full text (.pdf)

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Effects of production area and microbial phytase on the apparent and standardized total tract digestibility of phosphorus by growing pigs

The area in which soybeans are grown is known to affect various aspects of the chemical composition of soybean meal produced from those soybeans. However, it is not known if there is a difference in the concentration of phytate, and therefore in phosphorus digestibility, among soybeans from different growing areas. Therefore, an experiment was conducted to determine the concentration of phytate and the apparent (ATTD) and standardized (STTD) total tract digestibility of phosphorus in soybean meal produced from soybeans grown in four different areas in the United States. A secondary objective was to determine the effect of microbial phytase on STTD of P in soybean meal from each of the four areas.

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Effect of Sal CURB® on digestibility of energy, amino acids, calcium, and phosphorus in growing pigs

Porcine epidemic diarrhea virus (PEDV) can be spread via contaminated feed. Treating PEDV-contaminated feed with formaldehyde has been shown to prevent infection in pigs that consume the feed. However, concerns have been raised about the effect of treatment with formaldehyde on the nutritional value of feedstuffs. Therefore, an experiment was conducted to determine the effects of adding a formaldehyde-based feed disinfectant to the diet on the apparent ileal digestibility (AID) of dry matter, crude protein, and amino acids, and the apparent total tract digestibility (ATTD) of dry matter, gross energy (GE), calcium, and phosphorus in nursery pigs.

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Effect of microbial phytase on the standardized total tract digestibility and in vitro release of phosphorus in corn, soybean meal, and rice bran fed to growing pigs

Abelilla, J. J., R. C. Sulabo, H. H. Stein, S. P. Acda, A. A. Angeles, M. C. R. Oliveros, and F. E. Merca. 2015. Effect of microbial phytase on the standardized total tract digestibility and in vitro release of phosphorus in corn, soybean meal, and rice bran fed to growing pigs. J. Anim. Sci. 93(Suppl. 2):55 (Abstr.) Link to abstract (.pdf)

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