Digestibility

The direct and difference procedures result in similar estimates for amino acid digestibility in feed ingredients fed to growing pigs

Oliveira, Maryane S. F., John K. Htoo, and Hans H. Stein. 2020. The direct and difference procedures result in similar estimates for amino acid digestibility in feed ingredients fed to growing pigs. Journal of Animal Science, 2020, Vol. 98, No. 8, 1–8. doi:10.1093/jas/skaa225. Link to full text.

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Effects of concentration of calcium and phosphorus and 1-alpha-hydroxycholecalciferol (1-α-OH-D3) on digestibility and retention of calcium and phosphorus and concentration of digestible energy in diets fed to sows in late-gestation

Absorption of Ca and P by active transport in the small intestine is regulated by calcitriol, which is the active form of vitamin D (1,25-dihydroxycholecalciferol) and the hormones calcitonin and PTH. One-alpha-hydroxycholecalciferol (1-α-OH-D3) is an active vitamin D3 analog that does not require the second hydroxylation step for vitamin D3 to be active. It is possible that supplementation of 1-α-OH-D3 may increase absorption of Ca and P.

The requirement for Ca and P by gestating sows increases in late gestation compared with early- and mid-gestation because of increased needs by the developing fetuses. It is also possible that dietary concentrations of Ca and P affect the rate of absorption of Ca and P in sows but data to demonstrate this have not been reported. Therefore, the objective of this experiment was to test the hypothesis that the Ca and P concentrations in diets fed to gestating sows in late gestation and supplementation of 1-α-OH-D3 affect apparent total tract digestibility (ATTD) and retention of Ca and P as well as the ATTD of GE and concentration of DE in diets. The second hypothesis was that there is an interaction between dietary Ca and P concentrations and supplementation of 1-α-OH-D3 in diets fed to gestating sows.

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A new source of high-protein distillers dried grains with solubles (DDGS) has greater digestibility of amino acids and energy, but less digestibility of phosphorus, than de-oiled DDGS when fed to growing pigs

Cristobal, Minoy, Jessica P. Acosta, Su A Lee, and Hans H. Stein. 2020. A new source of high-protein distillers dried grains with solubles (DDGS) has greater digestibility of amino acids and energy, but less digestibility of phosphorus, than de-oiled DDGS when fed to growing pigs. Journal of Animal Science, 2020, Vol. 98, No. 7, 1–9. doi:10.1093/jas/skaa200.

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Effects of particle size reduction, pelleting, and extrusion on the nutritional value of ingredients and diets fed to pigs: A review

Lancheros, J. P., C. D. Espinosa, H. H. Stein. 2020. Effects of particle size reduction, pelleting, and extrusion on the nutritional value of ingredients and diets fed to pigs: A review. Animal Feed Science and Technology 268 (2020) 114603. https://doi.org/10.1016/j.anifeedsci.2020.114603.

Most meat products have digestible indispensable amino acid scores that are greater than 100, but processing may increase or reduce protein quality

Bailey, Hannah M., John K. Mathai, Eric P. Berg, and Hans H. Stein. 2020. Most meat products have digestible indispensable amino acid scores that are greater than 100, but processing may increase or reduce protein quality. British Journal of Nutrition (2020), 124, 14–22. doi:10.1017/S0007114520000641. Link to full text.

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At least 3 days of adaptation are required before indigestible markers (chromium, titanium, and acid insoluble ash) are stabilized in the ileal digesta of 60-kg pigs, but values for amino acid digestibility are affected by the marker

Kim, Beob G., Su A Lee, Kyu R. Park, and Hans H. Stein. 2020. At least 3 days of adaptation are required before indigestible markers (chromium, titanium, and acid insoluble ash) are stabilized in the ileal digesta of 60-kg pigs, but values for amino acid digestibility are affected by the marker. Journal of Animal Science, 2020,  Vol. 98: No.

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Concentration of digestible and metabolizable energy in L-threonine and L-valine biomass products fed to weanling pigs

Oliveira, M. S. F., C. D. Espinosa, J. D. Berrocoso, O. J. Rojas, J. K. Htood H. H. Stein. 2020. Concentration of digestible and metabolizable energy in L-threonine and L-valine biomass products fed to weanling pigs. Animal Feed Science and Technology 263 (2020) 114463. Link to full text.

Increasing calcium from deficient to adequate concentration in diets for gestating sows decreases digestibility of phosphorus and reduces serum concentration of a bone resorption biomarker

Lee, Su A.,  L. Vanessa Lagos, Mike R. Bedford, and Hans H. Stein. 2020. Increasing calcium from deficient to adequate concentration in diets for gestating sows decreases digestibility of phosphorus and reduces serum concentration of a bone resorption biomarker. Journal of Animal Science, 2020,  Vol. 98: No. 3:1-8.

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Pork Products Have Digestible Indispensable Amino Acid Scores (DIAAS) That Are Greater Than 100 When Determined in Pigs, but Processing Does Not Always Increase DIAAS

Bailey, Hannah M., John K. Mathai, Eric P. Berg, and Hans H. Stein. 2020. Pork Products Have Digestible Indispensable Amino Acid Scores (DIAAS) That Are Greater Than 100 When Determined in Pigs, but Processing Does Not Always Increase DIAAS. The Journal of Nutrition. Nutrient Physiology, Metabolism, and Nutrient-Nutrient Interactions. doi: https://doi.org/10.1093/jn/nxz284.

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Torula yeast has greater digestibility of amino acids and phosphorus, but not energy, compared with a commercial source of fish meal fed to weanling pigs

Lagos, Vanessa L., Hans H. Stein. 2020. Torula yeast has greater digestibility of amino acids and phosphorus, but not energy, compared with a commercial source of fish meal fed to weanling pigs. Journal of Animal Science, 2020, 1-9. doi:10.1093/jas/skz375. Link to full text.

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Apparent energy, dry matter and amino acid digestibility of differently sourced soybean meal fed to Pacific white shrimp Litopenaeus vannamei

Galkanda‐Arachchige, Harsha S. C., Jingping Guo, Hans H. Stein. Donald Allen Davis. 2020. Apparent energy, dry matter and amino acid digestibility of differently sourced soybean meal fed to Pacific white shrimp Litopenaeus vannamei. Aquaculture Research. 2020;51:326–340, DOI: 10.1111/are.14378. Link to full text.

Effects of copper hydroxychloride and distillers dried grains with solubles on intestinal microbial concentration and apparent ileal and total tract digestibility of energy and nutrients by growing pigs

Espinosa, Ch. D, R. Scott Fry, Matthew E. Kocher, Hans H. Stein. 2019. Effects of copper hydroxychloride and distillers dried grains with solubles on intestinal microbial concentration and apparent ileal and total tract digestibility of energy and nutrients by growing pigs. Journal of Animal Science, 2019, 4904–4911.

Digestibility of an enzyme treated soybean meal for calf starter in weaned dairy calves

Ansia, I., H.H. Stein, C. Brøkner, D.A. Vermeire, and J.K. Drackley. 2019. Digestibility of an enzyme treated soybean meal for calf starter in weaned dairy calves. Abstract 13 in 37th ADSA Discover Conference Program: Natural Bioactives in Dairy Production: Science, Functions and the Future, Itasca, IL. (Abstr.). Link to abstract.

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Standardized ileal digestibility of amino acids in canola meal fed to gestating and lactating sows

Velayudhan, Deepak Ettungapladi , Manik M. Hossain, Hans H. Stein, and C. Martin Nyachoti. 2019. Standardized ileal digestibility of amino acids in canola meal fed to gestating and lactating sows. Journal of Animal Science, 2019, 4219–4226. Link to full text.

Effects of heat treatment on digestibility of amino acids and concentration of metabolizable energy in soybean meal fed to pigs

Lee, S. A., M. S. F. Oliveira, W. B. Kwon, and H. H. Stein. 2019. Effects of heat treatment on digestibility of amino acids and concentration of metabolizable energy in soybean meal fed to pigs. Book of Abstracts. In: 1st International Feed Technology Congress, Cologne, Germany. p. 33. (Abstr.). Link to Abstract.

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PSIV-13 Basal endogenous loss, standardized total tract digestibility, and retention of Ca in sows change throughout gestation, but microbial phytase reduces basal endogenous loss of Ca by gestating sows

Lee Su A., Carrie L. Walk, Hans H. Stein. 2019. PSIV-13 Basal endogenous loss, standardized total tract digestibility, and retention of Ca in sows change throughout gestation, but microbial phytase reduces basal endogenous loss of Ca by gestating sows. Journal of Animal Science, Volume 97, Issue Supplement_2, July 2019, Pages 185–186. (Abstr.). Link to abstract.

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PSIII-18 Standardized total tract digestibility of Ca by growing pigs in different sources of calcium carbonate and dicalcium phosphate

Lee Su A., Carrie L. Walk, Hans H. Stein. 2019. PSIII-18 Standardized total tract digestibility of Ca by growing pigs in different sources of calcium carbonate and dicalcium phosphate. Journal of Animal Science, Volume 97, Issue Supplement_2, July 2019, Pages 173–174. (Abstr.). Link to abstract.

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PSIII-17 Nutritional value of high-lysine sorghum, red sorghum, white sorghum, and corn fed to growing pigs

Espinosa Charmaine D., Lori L. Thomas, Robert D. Goodband, Hans H. Stein . 2019. PSIII-17 Nutritional value of high-lysine sorghum, red sorghum, white sorghum, and corn fed to growing pigs. Journal of Animal Science, Volume 97, Issue Supplement_2, July 2019, Page 173. (Abstr.). Link to abstract.

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Direct vs. difference method to determine amino acid digestibility in ingredients fed to pigs

Maryane S. Faria de Oliveira, John K. Htoo, Hans H. Stein. 2019. Direct vs. difference method to determine amino acid digestibility in ingredients fed to pigs. Journal of Animal Science, Volume 97, Issue Supplement_2, July 2019, Pages 67–68. (Abstr.). Link to abstract.

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Effects of a novel corn-expressed E. coli phytase on digestibility of calcium and phosphorous, growth performance, and bone ash in young growing pigs

Blavi, Laia, Cristhiam J. Muñoz, Jonathan N. Broomhead, and Hans H. Stein. 2019. Effects of a novel corn-expressed E. coli phytase on digestibility of calcium and phosphorous, growth performance, and bone ash in young growing pigs. J. Anim. Sci. 2019.97:3390–3398. Link to full text.

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