Digestibility

Apparent and standardized ileal digestibility of AA and starch in hybrid rye, barley, wheat, and corn fed to growing pigs

McGhee Molly L. and Hans. H. Stein. 2018. Apparent and standardized ileal digestibility of AA and starch in hybrid rye, barley, wheat, and corn fed to growing pigs. J. Anim. Sci. 96:3319–3329.  Link to full text.

Keywords: 
Digestibility, Amino acids, Starch, Rye, Barley, Wheat, Corn, Growing pigs
Authors: 
McGhee, Stein
Publication Type: 
Peer-reviewed journal articles

Amino acid digestibility in six sources of meat and bone meal, blood meal, and soybean meal fed to growing pigs

Navarro D.M.D.L., J.K. Mathai, N.W. Jaworski, H.H. Stein. 2018. Amino acid digestibility in six sources of meat and bone meal, blood meal, and soybean meal fed to growing pigs. Can. J. Anim. Sci. 98: 860–867. Link to full text. 

Keywords: 
Amino acids, Blood meal, Digestibility, Meat and bone meal, Pigs
Authors: 
Navarro, Mathai, Jaworski, Stein
Publication Type: 
Peer-reviewed journal articles

Nutritional composition, gross energy concentration, and in vitro digestibility of dry matter in 46 sources of bakery meals

Yanhong Liu, Rajesh Jha, and Hans H. Stein. 2018. Nutritional composition, gross energy concentration, and in vitro digestibility of dry matter in 46 sources of bakery meals. J. Anim. Sci. 2018.96:4685–4692. Link to full text.

Keywords: 
Nutritional composition, Gross energy, Digestibility, Bakery meals
Authors: 
Yanhong, Jha, Stein
Publication Type: 
Peer-reviewed journal articles

Nutritional value of high-lysine sorghum, red sorghum, white sorghum, and yellow dent corn fed to growing pigs

Sorghum is used as an alternative to corn due to its lower cost and wide availability. However, conventional sorghum contains high concentration of tannin and phytate, which act as antinutritional factors. Use of microbial phytase may hydrolyze phytate and subsequently improve P absorption. High-lysine sorghum is a new variety of sorghum which may be comparable to other cereal grains and may serve as alternative to corn for pigs. However, there are at this point no data for effects of adding phytase to diets containing sorghum and no data to demonstrate the nutritional value of high-lysine sorghum.

Therefore, 2 experiments were conducted to test the hypothesis that inclusion of 500 phytase units (FTU)/kg of microbial phytase improves the standardized total tract digestibility (STTD) of P in sorghum varieties. The second hypothesis was that the STTD of P, as well as concentrations of digestible energy (DE) and metabolizable energy (ME) in high-lysine sorghum is not different from that of corn and other sources of sorghum.

 

Keywords: 
Digestibility, Energy, Phosphorus, Growth performance, Pigs, Sorghum
Authors: 
Espinosa, Stein
Publication Type: 
Research Reports

Basal endogenous loss, standardized total tract digestibility, and retention of calcium in gestating sows changes during gestation, but microbial phytase reduces basal endogenous loss of calcium by gestating sows

Standardized total tract digestibility (STTD) of Ca has been determined for most Ca containing ingredients fed to growing pigs, but the basal endogenous loss of Ca is greater and the STTD of Ca in sows in mid-gestation are less than in growing pigs. As a consequence, if diets for gestating sows are formulated using STTD values determined in growing pigs, the provisions of digestible Ca may be less than anticipated.

The efficacy of phytase to release Ca and P is believed to be influenced by the physiological state of pigs with phytase fed to sows in mid-gestation releasing less Ca and P compared with growing pigs or sows in late-gestation. However, it is not known if values for STTD of Ca or retention of Ca and P that are measured in one period of gestation are representative of the entire gestation period.

Therefore, an experiment was conducted to test the hypothesis that the STTD of Ca from calcium carbonate and the response to microbial phytase on STTD of Ca and apparent total tract digestibility (ATTD) of P in corn-based diets fed to gestating sows are constant throughout the gestating period for sows. The second objective was to test the hypothesis that retention of Ca and P does not change during gestation.

 

Keywords: 
Calcium, Digestibility, Basal endogenous loss, Phosphorus, Trimester, Retention
Authors: 
LeeSA, Stein
Publication Type: 
Research Reports

Comparative digestibility and retention rate of calcium and phosphorus in low- and high-phytate diets fed to gestating sows and growing pigs

Digestibility of Ca and P is most correctly determined as standardized total tract digestibility (STTD). Data for the STTD of P in most feed ingredients have been published, and the STTD of Ca has also been determined in many feed ingredients. However, in practical diet formulation, values for STTD of Ca and P obtained in growing pigs are also applied to sows although there is a lack of comparative data between growing pigs and sows.

Therefore, an experiment was conducted to test the hypothesis that no differences exist between gestating sows and growing pigs for basal endogenous losses, STTD, and retention of Ca and P.

 

Keywords: 
Calcium, Digestibility, Basal endogenous loss, Gestating sow, Phosphorus, Retention
Authors: 
LeeSA, Stein
Publication Type: 
Research Reports

Crystalline amino acids in diets do not influence calculated values for amino acid digestibility in feed ingredients fed to pigs

Oliveira, S. F. M., J. J. Abelilla, K. J. Htoo, and H. H. Stein. 2018. Crystalline amino acids in diets do not influence calculated values for amino acid digestibility in feed ingredients fed to pigs. 14th International Symposium on Digestive Physiology of Pigs. Adv. Anim. Biosci. Volume 9, Issue S2, 9:S71. (Abstr.). Link to abstract

Keywords: 
Crystalline AA, Digestibility, Feed ingredients, Pigs
Authors: 
Oliveira, Abelilla, Htoo, and Stein
Publication Type: 
Abstracts

Different corn hybrids fed to growing pigs. I. Chemical composition, energy concentration, and digestibility of nutrients

Liu, Y., R. C. Sulabo, T. E. Sauber, and H. H. Stein. 2014. Different corn hybrids fed to growing pigs. I. Chemical composition, energy concentration, and digestibility of nutrients. J. Anim. Sci 92(E-Suppl. 2):667 (Abstr.) Link to abstract (.pdf)

Keywords: 
Digestibility, Corn, Energy concentration
Authors: 
Sauber, Liu, Stein, Sulabo
Publication Type: 
Abstracts

Effect of rate of daily gain on nutrient and energy digestibility in growing-finishing pigs

Jaworski, N. W., A. Owusu-Asiedu, D. Petri, and H. H. Stein. 2013. Effect of rate of daily gain on nutrient and energy digestibility in growing-finishing pigs. J. Anim. Sci. 91(Suppl. 2):117 (Abstr.) Link to abstract (.pdf)

Keywords: 
Digestibility, Energy digestibility, Growth rate
Authors: 
Jaworski, Owusu-Asiedu, Petri, Stein
Publication Type: 
Abstracts

Particle size reductions may help lower feed costs

By Dr. Hans H. Stein

December, 2010

It is well known that corn needs to be ground to be effectively utilized by pigs. For many years it has been common practice to recommend grinding to an average particle size between 650 and 700 microns. This particle size was based on research showing that if grain is ground to a smaller particle size, then problems with ulcers in pigs may increase.

Keywords: 
Digestibility, Corn, Particle size
Authors: 
Stein
Publication Type: 
Current Comment

Effects of graded levels of phytase on the apparent and standardized total tract digestibility of phosphorus in corn and corn co-products

Almeida, F. N. and H. H. Stein. 2010. Effects of graded levels of phytase on the apparent and standardized total tract digestibility of phosphorus in corn and corn co-products. J. Anim. Sci. 88(E-Suppl. 2):378 (Abstr.) Link to abstract (.pdf)

Keywords: 
Digestibility, Phosphorus, Phosphorus digestibility, Phytase
Authors: 
AlmeidaFN, Stein
Publication Type: 
Abstracts

Performance and phosphorus balance of pigs fed diets formulated on the basis of values for standardized total tract digestibility of phosphorus

Almeida, F. N. and H. H. Stein. 2010. Performance and phosphorus balance of pigs fed diets formulated on the basis of values for standardized total tract digestibility of phosphorus. J. Anim Sci. 88:2968-2977. Link to full text (.pdf)

Keywords: 
Digestibility, Phosphorus, Phytase, Endogenous phosphorus
Authors: 
AlmeidaFN, Stein
Publication Type: 
Peer-reviewed journal articles

Digestibility of dietary fiber in distillers co-products fed to growing pigs

Urriola, P. E., G. C. Shurson, and H. H. Stein. 2010. Digestibility of dietary fiber in distillers co-products fed to growing pigs. J. Anim. Sci. 88:2373-2381. Link to full text (.pdf)

Keywords: 
Digestibility, Distillers dried grains with solubles, Distillers co-products, Dietary fiber
Authors: 
Shurson, Stein, Urriola
Publication Type: 
Peer-reviewed journal articles

Energy and nutrient digestibility in four sources of distillers dried grains with solubles produced from corn grown within a narrow geographical area and fed to growing pigs

Stein, H. H., S. P. Connot, and C. Pedersen. 2009. Energy and nutrient digestibility in four sources of distillers dried grains with solubles produced from corn grown within a narrow geographical area and fed to growing pigs. Asian-Austr. J. Anim. Sci. 22:1016-1025. Link to full text (.pdf)

Keywords: 
Amino acids, Digestibility, Distillers dried grains with solubles, Energy, Phosphorus
Authors: 
Pedersen, Connot, Stein
Publication Type: 
Peer-reviewed journal articles

Effects of dietary concentration of P and microbial phytase on the digestibility of amino acids and energy by growing pigs

Pahm, A. A., G. I. Petersen, N. R. Augspurger, and H. H. Stein. 2009. Effects of dietary concentration of P and microbial phytase on the digestibility of amino acids and energy by growing pigs. J. Anim. Sci. 87 (E-Suppl. 3):92 (Abstr.) Link to abstract (.pdf)

Keywords: 
Amino acids, Digestibility, Energy digestibility, Phosphorus, Phytase, Optiphos
Authors: 
Petersen, Pahm, Augspurger, Stein
Publication Type: 
Abstracts

Digestibility of dietary fiber in distillers co-products fed to growing pigs

Urriola, P. E., G. C. Shurson, and H. H. Stein. 2009. Digestibility of dietary fiber in distillers co-products fed to growing pigs. J. Anim. Sci. 87 (E-Suppl. 3):83 (Abstr.) Link to abstract (.pdf)

Keywords: 
Digestibility, Distillers dried grains with solubles, Fiber
Authors: 
Shurson, Stein, Urriola
Publication Type: 
Abstracts

Energy concentration and amino acid digestibility in a novel source of high-protein distillers dried grain fed to pigs

Kim, B. G., G. I. Petersen, and H. H. Stein. 2009. Energy concentration and amino acid digestibility in a novel source of high-protein distillers dried grain fed to pigs. J. Anim. Sci. 87 (E-Suppl. 3):81 (Abstr.) Link to abstract (.pdf)

Keywords: 
Amino acids, Digestibility, Energy, High protein distillers dried grains
Authors: 
Kim, Petersen, Stein
Publication Type: 
Abstracts

Effects of phytase supplementation on apparent and standardized total tract digestibility of P in corn, soybean meal, and distillers dried grains with solubles (DDGS) fed to growing pigs

Almeida, F. N. and H. H. Stein. 2009. Effects of phytase supplementation on apparent and standardized total tract digestibility of P in corn, soybean meal, and distillers dried grains with solubles (DDGS) fed to growing pigs. J. Anim. Sci. 87 (E-Suppl. 2):509 (Abstr.) Link to abstract (.pdf)

Keywords: 
Digestibility, Phosphorus
Authors: 
AlmeidaFN, Stein
Publication Type: 
Abstracts

Effects of distillers dried grains with solubles on the digestibility of energy, DM, AA, and fiber, and intestinal transit time in a corn-soybean meal diet fed to growing pigs

Urriola, P. E. and H. H. Stein.  2009. Effects of distillers dried grains with solubles on the digestibility of energy, DM, AA, and fiber, and intestinal transit time in a corn-soybean meal diet fed to growing pigs. J. Anim. Sci. 87 (E-Suppl. 2):145 (Abstr.) Link to abstract (.pdf)

Keywords: 
Digestibility, Distillers dried grains with solubles
Authors: 
Stein, Urriola
Publication Type: 
Abstracts

Digestible energy and metabolizable energy in distillers dried grains with solubles (DDGS) and enhanced DDGS

Soares, J. A., H. H. Stein, V. Singh and J. E. Pettigrew. 2008. Digestible energy and metabolizable energy in distillers dried grains with solubles (DDGS) and enhanced DDGS. J. Anim. Sci. 86 (E-Suppl. 2):522 (Abstr.) Link to abstract (.pdf)

Keywords: 
Digestibility, Distillers dried grains with solubles, Energy, Enhanced distillers dried grains with solubles
Authors: 
AlmeidaJAS, Singh, Pettigrew, Stein
Publication Type: 
Abstracts

Pages