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Effects of increasing crude glycerol and dried distillers grains with solubles on growth performance, carcass characteristics, and carcass fat quality of finishing pigs.
J Anim Sci. 2012 Mar; 90(3):840-52.JA

Abstract

This study was conducted to determine the effects of dietary crude glycerol and dried distillers grains with solubles (DDGS) on growing-finishing pig performance, carcass characteristics, and carcass fat quality. We hypothesized that because dietary crude glycerol has been observed to increase carcass SFA, it might ameliorate the negative effects of DDGS on fat quality. The 97-d study was conducted at a commercial swine research facility in southwestern Minnesota with 1,160 barrows (initial BW = 31.0 ± 1.1 kg). Pigs were blocked by initial BW, and pens were randomly allotted to 1 of 6 dietary treatments with 7 replications per treatment. Treatments were arranged in a 2 × 3 factorial with main effects of crude glycerol (0, 2.5, or 5%) and DDGS (0 or 20%). All corn-soybean meal-based diets contained 3% added fat (choice white grease). There were no glycerol × DDGS interactions for any response criteria evaluated. Increasing dietary glycerol did not affect finishing pig growth performance. Adding 20% DDGS to the diet did not affect ADG; however, finishing pigs fed diets with added DDGS had greater (2.47 vs. 2.41 kg/d; P = 0.02) ADFI and poorer (0.39 vs. 0.40; P = 0.01) G:F than pigs not fed DDGS. Feeding increasing dietary glycerol or 20% DDGS did not affect carcass characteristics. For carcass fat quality, feeding 20% DDGS resulted in decreased (P < 0.01) palmitic and oleic acids, total SFA and total MUFA, and increased (P < 0.01) linoleic, total PUFA, total unsaturated fatty acids, and iodine value in jowl fat, belly fat, and backfat. Increasing dietary crude glycerol increased myristic acid (linear, P < 0.05) and MUFA (quadratic, P < 0.05) in jowl fat and increased (quadratic, P < 0.05) oleic acid and MUFA in backfat. In conclusion, feeding 20% DDGS to finishing pigs increased ADFI, reduced G:F, and increased carcass fat iodine value, whereas feeding crude glycerol did not influence growth performance, carcass characteristics, and had a minor influence on fatty acids of carcass fat. Both of these biofuel coproducts can be used in combination without affecting finishing pig performance or carcass traits; however, feeding crude glycerol did not fully mitigate the increased unsaturation of carcass fat observed when feeding DDGS.

Authors+Show Affiliations

Department of Animal Sciences and Industry, College of Agriculture, Kansas State University, Manhattan 66506-0201, USA.No affiliation info availableNo affiliation info availableNo affiliation info availableNo affiliation info availableNo affiliation info availableNo affiliation info availableNo affiliation info available

Pub Type(s)

Journal Article
Randomized Controlled Trial

Language

eng

PubMed ID

22003236

Citation

Duttlinger, A J., et al. "Effects of Increasing Crude Glycerol and Dried Distillers Grains With Solubles On Growth Performance, Carcass Characteristics, and Carcass Fat Quality of Finishing Pigs." Journal of Animal Science, vol. 90, no. 3, 2012, pp. 840-52.
Duttlinger AJ, Derouchey JM, Tokach MD, et al. Effects of increasing crude glycerol and dried distillers grains with solubles on growth performance, carcass characteristics, and carcass fat quality of finishing pigs. J Anim Sci. 2012;90(3):840-52.
Duttlinger, A. J., Derouchey, J. M., Tokach, M. D., Dritz, S. S., Goodband, R. D., Nelssen, J. L., Houser, T. A., & Sulabo, R. C. (2012). Effects of increasing crude glycerol and dried distillers grains with solubles on growth performance, carcass characteristics, and carcass fat quality of finishing pigs. Journal of Animal Science, 90(3), 840-52. https://doi.org/10.2527/jas.2011-4126
Duttlinger AJ, et al. Effects of Increasing Crude Glycerol and Dried Distillers Grains With Solubles On Growth Performance, Carcass Characteristics, and Carcass Fat Quality of Finishing Pigs. J Anim Sci. 2012;90(3):840-52. PubMed PMID: 22003236.
* Article titles in AMA citation format should be in sentence-case
TY - JOUR T1 - Effects of increasing crude glycerol and dried distillers grains with solubles on growth performance, carcass characteristics, and carcass fat quality of finishing pigs. AU - Duttlinger,A J, AU - Derouchey,J M, AU - Tokach,M D, AU - Dritz,S S, AU - Goodband,R D, AU - Nelssen,J L, AU - Houser,T A, AU - Sulabo,R C, Y1 - 2011/10/14/ PY - 2011/10/18/entrez PY - 2011/10/18/pubmed PY - 2012/7/10/medline SP - 840 EP - 52 JF - Journal of animal science JO - J Anim Sci VL - 90 IS - 3 N2 - This study was conducted to determine the effects of dietary crude glycerol and dried distillers grains with solubles (DDGS) on growing-finishing pig performance, carcass characteristics, and carcass fat quality. We hypothesized that because dietary crude glycerol has been observed to increase carcass SFA, it might ameliorate the negative effects of DDGS on fat quality. The 97-d study was conducted at a commercial swine research facility in southwestern Minnesota with 1,160 barrows (initial BW = 31.0 ± 1.1 kg). Pigs were blocked by initial BW, and pens were randomly allotted to 1 of 6 dietary treatments with 7 replications per treatment. Treatments were arranged in a 2 × 3 factorial with main effects of crude glycerol (0, 2.5, or 5%) and DDGS (0 or 20%). All corn-soybean meal-based diets contained 3% added fat (choice white grease). There were no glycerol × DDGS interactions for any response criteria evaluated. Increasing dietary glycerol did not affect finishing pig growth performance. Adding 20% DDGS to the diet did not affect ADG; however, finishing pigs fed diets with added DDGS had greater (2.47 vs. 2.41 kg/d; P = 0.02) ADFI and poorer (0.39 vs. 0.40; P = 0.01) G:F than pigs not fed DDGS. Feeding increasing dietary glycerol or 20% DDGS did not affect carcass characteristics. For carcass fat quality, feeding 20% DDGS resulted in decreased (P < 0.01) palmitic and oleic acids, total SFA and total MUFA, and increased (P < 0.01) linoleic, total PUFA, total unsaturated fatty acids, and iodine value in jowl fat, belly fat, and backfat. Increasing dietary crude glycerol increased myristic acid (linear, P < 0.05) and MUFA (quadratic, P < 0.05) in jowl fat and increased (quadratic, P < 0.05) oleic acid and MUFA in backfat. In conclusion, feeding 20% DDGS to finishing pigs increased ADFI, reduced G:F, and increased carcass fat iodine value, whereas feeding crude glycerol did not influence growth performance, carcass characteristics, and had a minor influence on fatty acids of carcass fat. Both of these biofuel coproducts can be used in combination without affecting finishing pig performance or carcass traits; however, feeding crude glycerol did not fully mitigate the increased unsaturation of carcass fat observed when feeding DDGS. SN - 1525-3163 UR - https://www.unboundmedicine.com/medline/citation/22003236/Effects_of_increasing_crude_glycerol_and_dried_distillers_grains_with_solubles_on_growth_performance_carcass_characteristics_and_carcass_fat_quality_of_finishing_pigs_ L2 - https://academic.oup.com/jas/article-lookup/doi/10.2527/jas.2011-4126 DB - PRIME DP - Unbound Medicine ER -