Dietary fat

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)

Keywords: 
Dietary fat, Mineral digestibility, Calcium digestibility, Phosphorus digestibility
Authors: 
Merriman, Walk, Stein
Publication Type: 
Abstracts

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)

Keywords: 
Phytase, Dietary fiber, Dietary fat, Phosphorus digestibility, Calcium digestibility
Authors: 
González-Vega, Walk, Stein
Publication Type: 
Peer-reviewed journal articles

Nutritional value of soybean products

Sotak, K. M. and H. H. Stein. 2014. Nutritional value of soybean products. Pages 19-25 in Proc. Midwest Swine Nutr. Conf. Indianapolis, IN, Sep. 4, 2014. Link to full text (.pdf)

Keywords: 
Energy, Phosphorus, Calcium, Soybean meal, Dietary fat, Fermented soybean meal, Dietary crude protein, Enzyme-treated soybean meal, Carbohydrates
Authors: 
Stein, Sotak-Peper
Publication Type: 
Conference proceedings

Effect of fiber and fat on calculated values for standardized total tract digestibility of calcium in fish meal

González-Vega, J. C., C. L. Walk, and H. H. Stein. 2014. Effect of fiber and fat on calculated values for standardized total tract digestibility of calcium in fish meal. J. Anim. Sci 92(E-Suppl. 2):231-232 (Abstr.) Link to abstract (.pdf)

Keywords: 
Fish meal, Dietary fat, Dietary fiber, Calcium digestibility
Authors: 
González-Vega, Stein, Walk
Publication Type: 
Abstracts

Effect of phytase, fiber, and fat on calculated values for apparent and standardized total tract digestibility of calcium in fish meal

The presence of phytate in swine diets reduces the digestibility of calcium because phytate is able to bind calcium from organic sources and some inorganic sources, making it inaccessible to the pig. Microbial phytase breaks down phytate and increases the availability of calcium. An experiment was conducted to test the hypothesis that inclusion of microbial phytase increases the apparent (ATTD) and standardized (STTD) total tract digestibility of calcium in fish meal in diets containing phytate from corn and corn germ.

Besides phytate, corn and corn germ also add fiber and fat to diets, so it is important to know how fiber and fat affect calcium digestibility. Therefore, a second experiment was conducted to test the hypothesis that the values of ATTD and STTD of calcium obtained from cornstarch and corn based diets may differ, and to determine the effect of dietary fiber and fat on the ATTD and STTD of calcium in fish meal.

Keywords: 
Phytase, Dietary fat, Dietary fiber, Calcium digestibility
Authors: 
González-Vega, Stein
Publication Type: 
Research Reports

The nutritional quality of feed ingredients

Stein, H. H. 2012. The nutritional quality of feed ingredients. Pages 69-77 in Proceedings of the Chinese Swine Industry Symposium, Shanghai, October 24-26, 2012. Link to full text (.pdf)

Keywords: 
Amino acid digestibility, Minerals, Digestible energy, Dietary fat, Net energy, Metabolizable energy, Carbohydrates
Authors: 
Stein
Publication Type: 
Conference proceedings

Evaluation of the nutritional value of sources of canola meal fed to pigs

Canola meal is produced from the rapeseed plant, a relative of broccoli and mustard. Natural rapeseed contains glucosinolates, which make feed unpalatable, and erucic acid, which is toxic to animals. These anti-nutritional factors are heat-stable, and therefore, cannot be removed by heat-treating rapeseed. Rapeseed, which is low in both glucosinolates and erucic acid, has been produced by hybridization, and is called canola in Canada and the United States and 00-rapeseed in Europe. Oil can be removed from canola and rapeseeds via solvent extraction or mechanically expelling. The solvent extraction process results in production of canola meal or 00-rapeseed meal and mechanical expelling of oil results in production of canola expellers or 00-rapeseed expellers.

The objective of this study was to compare the chemical compositions of canola meal from North America and 00-rapeseed meal from Europe and to compare the composition of 00-rapeseed meal and 00-rapeseed expellers.  Ten samples of canola meal were collected from crushing plants in North America, and eleven samples of 00-rapeseed meal and five samples of 00-rapeseed expellers were collected from crushing plants in Europe. The samples were analyzed for energy, fat, sugar, starch, fiber, crude protein, amino acids, and minerals.

Keywords: 
Amino acids, Phosphorus, Calcium, Minerals, Starch, Canola meal, Dietary fat, Dietary fiber, Dietary crude protein, Energy concentration, Carbohydrates
Authors: 
Maison, Stein
Publication Type: 
Research Reports

Effect of the form of dietary fat and the concentration of dietary neutral detergent fiber on ileal and total tract endogenous losses and apparent and true digestibility of fat by growing pigs

Kil, D. Y., T. E. Sauber, D. B. Jones, and H. H. Stein. 2010. Effect of the form of dietary fat and the concentration of dietary neutral detergent fiber on ileal and total tract endogenous losses and apparent and true digestibility of fat by growing pigs. J. Anim Sci. 88:2959-2967. Link to full text (.pdf)

Keywords: 
Endogenous losses, Apparent ileal digestibility, True ileal digestibility, Apparent digestibility, True digestibility, Dietary fat, Neutral detergent fiber
Authors: 
Kil, Sauber, JonesDB, Stein
Publication Type: 
Peer-reviewed journal articles

Keep an eye on fat concentrations in DDGS

By Dr. Hans H. Stein

March 2010

Many companies that are producing DDGS have started to centrifuge or skim off the fat from the DDGS. These companies then sell the fat for biodiesel production at a price that is much greater than what they can usually obtain for DDGS. The consequence of this practice is that the concentration of fat in DDGS is reduced from 10 to 11% in conventional DDGS to between 6 and 8 % in the centrifuged low-fat DDGS. This DDGS has a reduced concentration of energy and has, therefore, also a reduced value when fed to livestock. Conventional DDGS with 10 to 11% fat has a concentration of digestible energy that is similar to that in corn. However, if the concentration of fat in DDGS is reduced by 3 to 5% then the energy value of that product is reduced considerably.

Keywords: 
Distillers dried grains with solubles, Dietary fat
Authors: 
Stein
Publication Type: 
Current Comment

Net energy of soybean oil and choice white grease in diets fed to growing or finishing pigs

Kil, D. Y., F. Ji, R. B. Hinson, A. D. Beaulieu, L. L. Stewart, G. L. Allee, J. F. Patience, J. E. Pettigrew, and H. H. Stein. 2009. Net energy of soybean oil and choice white grease in diets fed to growing or finishing pigs. J. Anim. Sci. 87 (E-Suppl. 3):99 (Abstr.) Link to abstract (.pdf)

Keywords: 
Soybean oil, Fat, Choice white grease, Dietary fat, Net energy, Lipids
Authors: 
Pettigrew, Kil, Patience, Allee, Ji, Hinson, Beaulieu, Stein, Stewart
Publication Type: 
Abstracts

Effect of form of fat and NDF addition on apparent ileal and apparent total tract digestibility of fat in diets fed to growing pigs

Kil, D. Y., T. E. Sauber, H. H. Stein. 2007. Effect of form of fat and NDF addition on apparent ileal and apparent total tract digestibility of fat in diets fed to growing pigs. J. Anim. Sci. 85(Suppl. 1):438 (Abstr.) Link to abstract (.pdf)

Keywords: 
Digestibility, Fat, Dietary fat, Neutral detergent fiber
Authors: 
Kil, Sauber, Stein
Publication Type: 
Abstracts