Low fat distillers dried grains with solubles

Digestibility of energy and nutrients, and concentrations of DE and ME, in Dakota Gold DDGS fed to pigs

In recent years, companies that produce distillers dried grains with solubles (DDGS) have begun to remove some of the corn oil for use in biodiesel production. Conventional DDGS contains 10-12% fat, compared with 6-9% in low-oil DDGS.

There is limited information about how oil concentration in DDGS influences the digestibility of energy, fiber, and fat when fed to pigs. Therefore, an experiment was conducted to determine the apparent total tract digestibility (ATTD) of energy, neutral detergent fiber (NDF), acid detergent fiber (ADF), and acid hydrolyzed ether extract (AEE), as well as the concentrations of digestible energy (DE) and metabolizable energy (ME) in two sources of DDGS. One source was a conventional DDGS, and the other was Dakota Gold, a low-oil DDGS.

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Digestibility of NDF and concentration of DE and ME in low-oil DDGS fed to growing pigs

In recent years, ethanol plants have begun extracting more oil from the solubles left over after fermentation. The resulting low oil distillers dried grains with solubles (DDGS) contain less digestible energy (DE) and metabolizable energy (ME) than traditional DDGS.

The fat content of the diet affects the digestibility of energy and nutrients. Because the production of low oil DDGS is a relatively new development, it has not been established that digestibility values are the same across suppliers. Therefore, an experiment was conducted to measure the apparent total tract digestibility (ATTD) of neutral detergent fiber (NDF) and the concentration of DE and ME among DDGS samples from different suppliers.

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Ileal digestibility of amino acids in low-oil DDGS fed to growing pigs

Distillers dried grains with solubles (DDGS) are fed to pigs as a source of energy and amino acids. In recent years, ethanol plants have begun recovering corn oil from DDGS to sell for biodiesel and other uses. Conventional corn DDGS contains 10-12 fat, compared with 5-9% fat in low oil DDGS. Previous research in our lab showed that amino acid digestibility was reduced in low oil DDGS compared with conventional DDGS, but that research used DDGS from only one supplier. An experiment was conducted to compare the digestibility of amino acids in low oil DDGS sourced from multiple different suppliers.

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Amino acid digestibility in low-fat distillers dried grains with solubles fed to growing pigs

Curry, S. M., D. M. D. L. Navarro, F. N. Almeida, J. A. S. Almeida, and H. H. Stein. 2014. Amino acid digestibility in low-fat distillers dried grains with solubles fed to growing pigs. J. Anim. Sci. Biotechnol. 5:27. Link to full text (.pdf)

Energy concentrations in distillers dried grains with solubles containing different fat concentrations and the effect of corn oil addition on energy concentrations in diets fed to growing pigs

Kil, D. Y., J. W. Lee, D. M. D. L. Navarro, and H. H. Stein. 2013. Energy concentrations in distillers dried grains with solubles containing different fat concentrations and the effect of corn oil addition on energy concentrations in diets fed to growing pigs. J. Anim. Sci 91(E-Suppl. 2):582-583 (Abstr.) Link to abstract

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Amino acid digestibility by growing pigs in distillers dried grains with solubles with conventional, medium, or low concentrations of fat

Curry, S., Navarro, D., Almeida, F., and H. Stein. 2013. Amino acid digestibility by growing pigs in distillers dried grains with solubles with conventional, medium, or low concentrations of fat. J. Anim. Sci. 91(Suppl. 2):102-103 (Abstr.) Link to abstract (.pdf)

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