The Advantages of Using Corn Distillers Dried Grains with Solubles in Swine Diets

By the Department of Animal Science, University of Minnesota - This article looks at the costs and benefits of using Corn Distillers Dried Grains with Solubles.
calendar icon 1 June 2004
clock icon 4 minute read
University of Minnesota Extension Service

  • Corn Distillers Dried Grains with Solubles is an Economical Addition to Swine Diets
    In one ton of complete feed, adding 200 lbs. of Corn Distillers Grains with Solubles (CCDGS) and 3 lbs. of limestone to a finisher diet will replace approximately:

    • 177 lbs of corn
    • 20 lbs of soybean meal 44%
    • 6 lbs of dicalcium phosphate

    Calculate the opportunity cost of using CDDGS in swine diets as follows:

    • + CDDGS 200 lbs. X price/lb = $
    • + Limestone 3 lbs. X price/lb = $
    • TOTAL A = $

    • - Corn 177 lbs. X price/lb = $
    • - Soybean Meal 44% 20 lbs. X price/lb = $
    • - Dicalcium Phosphate 6 lbs. X price/lb = $
    • TOTAL S = $

    Opportunity Cost:
    • Total S – Total A = Opportunity Cost of CDDGS/lb X 200 lbs/ton = Opportunity cost/ton of complete feed

  • “New Generation” Ethanol Plants Produce Higher Quality CDDGS
    CDDGS have more digestible energy, amino acids, and phosphorus than other DDGS sources produced in the ethanol industry. This makes CDDGS an excellent alternative ingredient for livestock rations.

  • CDDGS Can Be Effectively Used in Swine Diets With Maximum Dietary Inclusion Rates of:

    • Nursery Pigs (>15 lbs.) 25% Lactating Sows 10%
    • Grow-finish Pigs 20% Gestating Sows 50%

  • Feeding High Levels of CDDGS to Sows Has Been Shown to Increase Litter Size Weaned
    Recent research results from the University of Minnesota have shown that feeding high levels of CDDGS in gestation and/or lactation in a previous reproductive cycle, increases litter size weaned in the subsequent reproductive cycle compared to sows fed typical corn-soybean meal diets.

  • Feeding Diets Containing CDDGS May Improve Gut Health of Pigs
    Studies are currently underway at the University of Minnesota to determine if adding CDDGS to diets for growing pigs reduces the incidence and severity of ileitis (Lawsonia intracellularis).

  • CDDGS Reduces Phosphorus Excretion in Manure and Does Not Adversely Affect Air Quality in Confinement Swine Facilities
    CDDGS contains 0.70% available phosphorus (P), which is 18 times more than the available P in corn (0.04%). This means that the natural P in CDDGS is better digested and absorbed by the pig than P in corn and soybean meal. The end result is less need for dietary P supplementation and a reduction in P excretion in manure.

University of Minnesota research has shown that ammonia, hydrogen sulfide, and odor emissions from swine manure from grow-finish pigs fed a diet containing CDDGS are the same as when conventional corn-soybean meal based diets are fed to swine.

  • The Greatest Nutritional and Economic Value from Using DDGS in Swine Diets in Achieved when Diets are Formulated on a Digestible Amino Acid and an Available Phosphorus Basis.

  • Nutrient Profiles and Digestibility Coefficients are Available for Each Ethanol Plant Producing CDDGS.

Source: University of Minnesota Extension Service - May 2004
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