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Updated: Jul 2, 2026

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Testing preference for corn milling coproducts by lactating Jersey cows.

K K Buse1, M L Jolly-Breithaupt2, K J Herrick2

  • 1Department of Animal Science, University of Nebraska-Lincoln, Lincoln, NE 68583.

JDS Communications
|July 1, 2026
PubMed
Summary
This summary is machine-generated.

Pelleted corn distillers grains (PEDG) were the most preferred feed for dairy cows, outranking corn grain and other corn co-products. Pelleting significantly enhances feed preference in dairy cattle nutrition strategies.

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Area of Science:

  • Dairy Cattle Nutrition
  • Animal Feed Science
  • Agricultural Byproducts

Background:

  • Corn ethanol production generates diverse co-products valuable for the dairy industry.
  • Novel feeding strategies can leverage affordable feeds and natural cow behavior to boost feed intake.
  • Understanding feed preferences is key to optimizing dairy cow diets.

Purpose of the Study:

  • To evaluate dairy cow preference among different corn milling co-products and corn grain.
  • To compare the palatability of dried corn distillers grains with solubles (DDGS), corn fermented protein (CFP), pelleted corn distillers grains (PEDG), and corn grain (CRNG).

Main Methods:

  • Eight lactating Jersey cows were used in a preference trial.
  • Cows were offered individual corn co-products and corn grain alongside a base TMR diet.
  • Feed preference was ranked over a 9-day period using a systematic removal method.

Main Results:

  • Pelleted corn distillers grains (PEDG) were the most preferred feed (1.00 ± 0.25), followed by corn grain (CRNG; 2.14 ± 0.38), DDGS (2.50 ± 0.58), and CFP (4.00 ± 0.00).
  • The Plackett-Luce model indicated a 98.8% probability of PEDG being selected first.
  • Pelleting DDGS significantly increased its preference compared to non-pelleted forms and corn grain.

Conclusions:

  • Dairy cows exhibit a strong preference for pelleted corn distillers grains over other corn co-products and corn grain.
  • Feed processing, specifically pelleting, can enhance the palatability and selection of corn co-products for dairy cows.
  • Optimizing feed form is a viable strategy to improve feed intake and potentially milk production in dairy herds.