Effects of supplemented NSP-degrading enzymes on nutrient digestibility of diets containing co-products fed to grower pigs

• Author / Creator

  Shrestha, Dharma Raj

• Corn distillers dried grains with solubles (DDGS) and wheat millrun are co-products from the ethanol and dry milling industries characterized by high non-starch polysaccharides (NSP) content that limit nutrient digestibility of co-products, which could be improved by supplementation of NSP-degrading enzymes. Nutrient digestibility of diets containing co-products with supplemented NSP-degrading enzymes was evaluated in 3 experiments. Supplemental NSP-degrading enzymes did not increase the nutrient digestibility of corn DDGS- and wheat millrun-based diets (P > 0.10) however, feed enzymes increased (P < 0.01) the apparent ileal digestibility (AID), apparent total tract digestibility (ATTD) of energy, AID and ATTD of NSP and standardized ileal digestibility (SID) of crude protein in a wheat grain diet including 40% wheat millrun. Furthermore, these enzymes increased (P < 0.05) the SID of Arg, His, Trp, Cys, Glu, Gly and Ser. In conclusion, supplementing NSP-degrading enzymes increased the limited energy, protein, and AA digestibility in wheat millrun.

• Subjects / Keywords

  • Enzymes
  • wheat millrun
  • DDGS

• Graduation date

  Spring 2012

• Type of Item

  Thesis

• Degree

  Master of Science

• DOI

  https://doi.org/10.7939/R3J02K

• License

  This thesis is made available by the University of Alberta Libraries with permission of the copyright owner solely for non-commercial purposes. This thesis, or any portion thereof, may not otherwise be copied or reproduced without the written consent of the copyright owner, except to the extent permitted by Canadian copyright law.