Effects of increasing glycerol and dried distillers grains with solubles on the growth performance and carcass characteristics of finishing pigs (2008)

Authors

A W. Duttlinger
J M. Benz
Terry A. Houser
Michael D. Tokach
Steven S. Dritz
K J. Prusa
Joel M. DeRouchey
Jim L. Nelssen
Robert D. Goodband

Keywords

Swine day, 2008; Kansas Agricultural Experiment Station contribution; no. 09-074-S; Report of progress (Kansas State University. Agricultural Experiment Station and Cooperative Extension Service); 1001; Dried distiller grains with solubles; Glycerol; Growing-finishing pig

Abstract

A total of 1,160 barrows (PIC, initially 68.4 lb) were used in a 97-d study to determine the influence of glycerol and dried distillers grains with solubles (DDGS) on growing-finishing pig performance, carcass characteristics, and fat quality. Pigs were blocked by weight and randomly allotted to 1 of 6 dietary treatments with 7 replications per treatment. Pigs were fed corn-soybean meal-based diets arranged in a 2 × 3 factorial with main effects of glycerol (0, 2.5, or 5%) and DDGS (0 or 20%). Overall (d 0 to 97), there were no glycerol × DDGS interactions (P>0.12) for growth performance, carcass characteristics, and carcass fat iodine value (IV). Increasing glycerol did not affect (P>0.14) ADG or F/G. Adding 20% DDGS to the diet did not affect ADG. However, pigs fed diets with 20% added DDGS had greater (P<0.02) ADFI resulting in poorer (P<0.01) F/G than pigs fed diets with no DDGS. For carcass characteristics, pigs fed increasing glycerol tended to have increased (linear, P<0.11) yield. Pigs fed diets with added DDGS had increased (P<0.01) jowl fat, belly fat, and backfat IV compared with pigs fed diets with no DDGS. However, increasing dietary glycerol tended to decrease (linear, P<0.11) backfat IV. In conclusion, feeding pigs 20% DDGS worsened F/G and increased carcass fat IV, whereas feeding glycerol did not influence growth performance but tended to improve carcass yield and reduce backfat IV.; Swine Day, 2008, Kansas State University, Manhattan, KS, 2008

Recommended Citation

Duttlinger, A W.; Benz, J M.; Houser, Terry A.; Tokach, Michael D.; Dritz, Steven S.; Prusa, K J.; DeRouchey, Joel M.; Nelssen, Jim L.; and Goodband, Robert D. (2008) "Effects of increasing glycerol and dried distillers grains with solubles on the growth performance and carcass characteristics of finishing pigs (2008)," Kansas Agricultural Experiment Station Research Reports: Vol. 0: Iss. 10. https://doi.org/10.4148/2378-5977.7017