Stein

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

Blavi, L., D. Solà-Oriol, J. F. Pérez, and H. H. Stein. 2017. Effects of zinc oxide and microbial phytase on standardized total tract digestibility of calcium in maize-based diets fed to growing pigs. J. Anim. Sci. 95(Suppl. 5):85 (Abstr.) Link to abstract (.pdf)

Publication Type: 

Effects of feeding level and physiological stage on digestibility of gross energy and nutrients and concentration of digestible and metabolizable energy in full fat rice bran and defatted rice bran fed to gestating sows and growing gilts

Casas, G. A. and H. H. Stein. 2017. Effects of feeding level and physiological stage on digestibility of gross energy and nutrients and concentration of digestible and metabolizable energy in full fat rice bran and defatted rice bran fed to gestating sows and growing gilts. J. Anim. Sci. 95(Suppl. 5):78 (Abstr.) Link to abstract (.pdf)

Authors: 
Publication Type: 

Fresh belly characteristics and commercial bacon slicing yield in growing-finishing pigs fed an antibiotic-free diet or a diet supplemented with a natural antimicrobial

Lowell, J. E., B. M. Bohrer, K. B. Wilson, M. F. Overholt, B. N. Harsh, H. H. Stein, A. C. Dilger, and D. D. Boler. 2017. Fresh belly characteristics and commercial bacon slicing yield in growing-finishing pigs fed an antibiotic-free diet or a diet supplemented with a natural antimicrobial. J. Anim. Sci. 95(Suppl. 5):65 (Abstr.) Link to abstract (.pdf)

Publication Type: 

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)

Authors: 
Publication Type: 

Chemical composition and physicochemical characteristics of feed ingredients and effects on in vitro ileal and total tract digestibility of dry matter

The chemical composition and structure of dietary fiber, as well as physicochemical characteristics such as bulk density, swelling, water binding capacity, and viscosity, may influence the digestion of energy and nutrients in feed ingredients. Having a complete account of the components of a feed ingredient, particularly the type and concentration of fiber, is necessary in order to accurately the energy value of an ingredient using prediction equations.

An experiment was conducted to obtain a detailed description of the composition of ten feed ingredients, and to compare the analyzed gross energy (GE) with the GE predicted by adding together the measured energy-containing components. A secondary objective was to measure the in vitro apparent total tract digestibility (IVATTD) and in vitro apparent ileal digestibility (IVAID) of dry matter (DM) and organic matter (OM) in the feed ingredients, and to determine the correlations between the physicochemical characteristics of the ingredients and the in vitro digestibility.

Publication Type: 

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 full text (.pdf)

Nutritional value of soy protein concentrate ground to different particle sizes and fed to pigs

Casas, G. A., C. Huang, and H. H. Stein. 2017. Nutritional value of soy protein concentrate ground to different particle sizes and fed to pigs. J. Anim. Sci. 95:827-836. Link to full text (.pdf)

Authors: 

Effects of ileal digesta collection time on standardized ileal digestibility of amino acids in corn, soybean meal, and distiller’s dried grains with solubles fed to growing pigs

Kim, B. G., Y. Liu, and H. H. Stein. 2017. Effects of ileal digesta collection time on standardized ileal digestibility of amino acids in corn, soybean meal, and distiller’s dried grains with solubles fed to growing pigs. J. Anim. Sci. 95:789-798. Link to full text (.pdf)

Authors: 

Amino acid digestibility in soybean meal sourced from different regions of the United States and fed to pigs

Sotak-Peper, K. M., J. C. González-Vega, and H. H. Stein. 2017. Amino acid digestibility in soybean meal sourced from different regions of the United States and fed to pigs. J. Anim. Sci. 95:771-778. Link to full text (.pdf)

Disappearance of nutrients and energy in the stomach and small intestine, cecum, and colon of pigs fed corn-soybean meal diets containing distillers dried grains with solubles, wheat middlings, or soybean hulls

Jaworski, N. W. and H. H. Stein. 2017. Disappearance of nutrients and energy in the stomach and small intestine, cecum, and colon of pigs fed corn-soybean meal diets containing distillers dried grains with solubles, wheat middlings, or soybean hulls. J. Anim. Sci. 95:727-739. Link to abstract

Authors: 

Effects of physicochemical characteristics of feed ingredients on total tract digestibility of dry matter, energy, fiber, and protein by growing pigs

Dietary fiber is resistant to digestion in the small intestine, but is fermented in the large intestine and the resulting short chain fatty acids provide some energy to the pig. Fermentation occurs to a greater or lesser degree depending on the chemical and physical composition of the fiber; soluble fiber is generally fermented to a greater extent than insoluble fiber.

Bulk density, swelling capacity, water binding capacity, and viscosity of diets fed to pigs vary based on the types of fiber present in the diets. Therefore, an experiment was conducted to test the hypothesis that the physicochemical characteristics of feed ingredients are correlated with the concentrations of digestible energy (DE) and metabolizable energy (ME) and the apparent total tract digestibility (ATTD) of energy, dry matter (DM), and nutrients in corn, wheat, soybean meal (SBM), canola meal, distillers dried grains with solubles (DDGS), corn germ meal, copra meal, sugar beet pulp, solka floc, and pectin.

Authors: 
Publication Type: 

Effects of a 3 strain Bacillus-based direct-fed microbial and dietary fiber concentration on growth performance and expression of genes related to absorption and metabolism of volatile fatty acids in weanling pigs

Jaworski, N. W., A. Owusu-Asiedu, M. C. Walsh, J. C. McCann, J. J. Loor, and H. H. Stein. 2017. Effects of a 3 strain Bacillus-based direct-fed microbial and dietary fiber concentration on growth performance and expression of genes related to absorption and metabolism of volatile fatty acids in weanling pigs. J. Anim. Sci 95:308-319. Link to full text (.pdf)

Digestibility of energy and nutrients in wheat middlings and red dog fed to pigs

Wheat middlings and red dog are two coproducts of the wheat milling process that are used as sources of energy and protein in animal feed. Wheat middlings are granular particles of the wheat endosperm, bran and germ. Red dog consists mainly of the aleurone layer that lies between the bran and the endosperm, along with small particles of bran, germ, and flour. It is often used in extrusion mixtures and as a pellet binder. The composition of wheat middlings varies from mill to mill because of the different conditions under which they are produced.

Wheat and wheat co-products contain more non-starch polysaccharides (NSP) than other grains commonly fed to pigs. Because pigs lack the enzymes needed to digest NSPs, this may affect the digestibility of energy and nutrients. An experiment was conducted to determine the apparent total tract digestibility (ATTD) of gross energy (GE), dry matter (DM), and organic matter (OM), and the concentration of digestible energy (DE) and metabolizable energy (ME) in ten sources of wheat middlings as well as one source of red dog.

Authors: 
Publication Type: 

Requirement for digestible calcium by 25 to 50 kg pigs at different dietary concentrations of phosphorus as indicated by growth performance, bone ash concentration, and calcium and phosphorus balances

González-Vega, J. C., C. L. Walk, M. R. Murphy, and H. H. Stein. 2016. Requirement for digestible calcium by 25 to 50 kg pigs at different dietary concentrations of phosphorus as indicated by growth performance, bone ash concentration, and calcium and phosphorus balances. J. Anim. Sci. 94:5272-5285. Link to full text (.pdf)

Effects of diet energy concentration and an exogenous carbohydrase on growth performance of weanling pigs fed diets containing canola meal produced from high protein or conventional canola seeds

Pedersen, T. F., Y. Liu, and H. H. Stein. 2016. Effects of diet energy concentration and an exogenous carbohydrase on growth performance of weanling pigs fed diets containing canola meal produced from high protein or conventional canola seeds. J. Anim. Sci 94:5206-5218. Link to full text (.pdf)

Authors: 

Effect of adding tribasic copper chloride (TBCC) to diets for weanling pigs

Copper is an essential micronutrient for animals. It is involved in cellular respiration and connective tissue development as well as being an essential component of several enzymes. High doses of copper—about 20 times the nutritional requirement—have been shown to improve growth performance in pigs. This may be because copper has an antimicrobial effect in the intestinal tract.

When supplemental copper is added to pig diets, it is usually in the form of copper sulfate. However, another form called tribasic copper chloride (TBCC) has been shown to be equally effective and may be  more bioavailable, but it is not yet known how much TBCC should be fed to optimize performance. Therefore, an experiment was conducted to determine the effects of adding 100 or 200 mg/kg TBCC to diets fed to weanling pigs.

Authors: 
Publication Type: 

Standardized ileal digestibility of amino acids in wheat middlings and red dog fed to pigs

Wheat middlings and red dog are coproducts of the wheat milling process that are used as a source of energy and protein in animal feed. Wheat middlings are granular particles of the wheat endosperm, bran and germ. Red dog consists mainly of the aleurone layer that lies between the bran and the endosperm, along with small particles of bran, germ, and flour. It is often used in extrusion mixtures and as a pellet binder.

The digestibility of crude protein and amino acids in wheat coproducts produced in China has been reported, but there is limited information about the nutritional value of wheat middlings and red dog produced in the United States. In addition, because wheat coproducts vary in terms of the conditions under which they are produced, their nutritional value may vary as well. Therefore, the objective of this experiment was to determine the concentration and digestibility of crude protein and amino acids in ten sources of wheat middlings and in one source of red dog.

Authors: 
Publication Type: 

Calcium transporters and gene expression and absorption of calcium in pigs

González-Vega, J. C. and H. H. Stein. 2016. Calcium transporters and gene expression and absorption of calcium in pigs. Pages 217-224 in Phytate destruction—consequences for precision animal nutrition. Walk, C. L., ed. Wageningen Academic Publishers, Wageningen, Netherlands. Link to full text (coming soon)

Publication Type: 

Establishing a digestible calcium requirement for pigs

Stein, H. H., L. A. Merriman, and J. C. González-Vega. 2016. Establishing a digestible calcium requirement for pigs. Pages 207-216 in Phytate destruction—consequences for precision animal nutrition. Walk, C. L., ed. Wageningen Academic Publishers, Wageningen, Netherlands. Link to full text (coming soon)

Publication Type: 

Digestibility of calcium in feed ingredients and requirements of digestible calcium for growing pigs

González-Vega, J. C. and H. H. Stein. 2016. Digestibility of calcium in feed ingredients and requirements of digestible calcium for growing pigs. Anim. Prod. Sci. 56:1339-1344. Link to abstract

Pages