Dairy

Lactational Performance of Holstein Dairy Cows Fed Two Levels of Full-fat Corn Dried Distillers Grains with Solubles

Authors: Eric D. Testroet (Iowa State University) , Vaishnavi Manimanna Sankarlal (Iowa State University) , Stephanie Clark (Iowa State University) , Donald C. Beitz (Iowa State University)

Abstract

The lactational performance of 30 healthy multiparous Holstein dairy cows was tested when cows were fed 0, 10, and 20% dried distillers grains with solubles (DDGS) that contained 13.6% fat on a dry matter (DM) basis. Cows fed 10% DDGS on a DM basis experienced a reduction in milk fat percentage of 0.5 percentage points, but did not perform differently in other measures than did cows not fed DDGS. When cows were fed 20% DDGS on a DM basis, every common measure of feed utilization was impacted negatively.

Keywords: Food Science and Human Nutrition

How to Cite: Testroet, E. D. , Sankarlal, V. M. , Clark, S. & Beitz, D. C. (2016) “Lactational Performance of Holstein Dairy Cows Fed Two Levels of Full-fat Corn Dried Distillers Grains with Solubles”, Iowa State University Animal Industry Report. 13(1). doi: https://doi.org/10.31274/ans_air-180814-1391