Theses and Dissertations

Issuing Body

Mississippi State University


Rude, J. Brian

Committee Member

Crenshaw, A. Mark

Committee Member

Hill, R. Stephanie

Date of Degree


Document Type

Graduate Thesis - Open Access


Animal Nutrition

Degree Name

Master of Science (M.S.)


College of Agriculture and Life Sciences


Department of Animal and Dairy Sciences


The objective of this study was to evaluate the lighter fraction of DDGS as a possible feedstuff for cattle. To accomplish this, a digestion trial was performed to determine nutrient digestibility and crude protein retention by steers consuming the lighter fraction of DDGS. Steers received L, a diet containing the lighter fraction of DDGS, D, a diet containing whole DDGS, or C, a control diet. Steers receiving L consumed less DM than steers receiving D and C. CP retention and digestibilities of DM, OM, ash, NDF, ADF, HC, and energy did not differ among steers in different treatment groups. Fat digestibility was greatest for steers consuming L and D. Steers consuming L digested more CP than steers receiving C, with steers consuming D being in between. These data suggest that the lighter fraction of DDGS can be effectively fed to cattle without adversely affecting digestibility.