Effects of extrusion processing on the nutritional value of dried distillers grains with solubles in diets for nursery pigs (2010)

Authors

S M. Williams
C B. Paulk
S Issa
Terry L. Gugle
Joe D. Hancock

Keywords

Swine Day, 2010; Kansas Agricultural Experiment Station contribution; no. 11-016-S; Report of progress (Kansas State University. Agricultural Experiment Station and Cooperative Extension Service); 1038; Swine; DDGS; Dried distillers grains with solubles; Feed processing; Extrusion

Abstract

A total of 224 pigs (PIC TR4 x 1050, initially 18.7 lb avg BW) were used in a 21-d experiment to determine the effects of extrusion processing on the nutritional value of dried distillers grains with solubles (DDGS) in diets for nursery pigs. The pigs were weaned at 21 d of age, sorted by sex and ancestry, and blocked by BW. All pigs were fed a common diet for 11 d postweaning and the experimental treatments for the next 21 d. Treatments were a corn-soybean meal-based control and 3 diets formulated with 30% DDGS. The 3 DDGS treatments were either (1) not treated, (2) dry-extruded with the barrel configured for processing cereal grain (to generate less shear and temperature rise), or (3) dry-extruded with the barrel configured for processing soybeans (to generate more shear and temperature rise). Overall, ADG and ADFI both improved (P < 0.02) while F/G became poorer (P < 0.05) for pigs fed the corn-soy control compared to those fed the DDGS treatments. Extruding the DDGS did not affect ADG or F/G (P > 0.11) but did reduce ADFI (P < 0.02). There were no differences in growth performance among pigs fed the DDGS extruded with low vs. high shear (P > 0.20). Pigs fed the corn-soy control diet had greater digestibility of DM, N, and GE (P < 0.02) compared to pigs fed the diets with DDGS. Among the DDGS treatments, extrusion improved digestibility of DM and GE (P < 0.04), but digestibility of N was only improved with high-shear conditions (P < 0.05).; Swine Day, Manhattan, KS, November 18, 2010

Recommended Citation

Williams, S M.; Paulk, C B.; Issa, S; Gugle, Terry L.; and Hancock, Joe D. (2010) "Effects of extrusion processing on the nutritional value of dried distillers grains with solubles in diets for nursery pigs (2010)," Kansas Agricultural Experiment Station Research Reports: Vol. 0: Iss. 10. https://doi.org/10.4148/2378-5977.3443