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J. Dairy Sci. 87:3899-3911
© American Dairy Science Association, 2004.

Response of Lactating Dairy Cows to Diets Containing Wet Corn Gluten Feed or a Raw Soybean Hull-Corn Steep Liquor Pellet

E. E. Wickersham1, J. E. Shirley1, E. C. Titgemeyer1, M. J. Brouk1, J. M. DeFrain1, A. F. Park1, D. E. Johnson2 and R. T. Ethington3

1 Department of Animal Sciences and Industry,
2 Department of Statistics, Kansas State University, Manhattan 66506-1600
3 Minnesota Corn Processors, LLC, Marshall, MN 56258

Corresponding author: J. E. Shirley; e-mail: jshirley{at}oznet.ksu.edu.

We evaluated effects of wet corn gluten feed (WCGF) and a novel product (SHSL) containing raw soybean hulls and corn steep liquor on performance and digestion in lactating dairy cows. In Experiment 1, 46 multiparous Holstein cows were assigned to control (C), WCGF (20% of diet DM), or SHSL (20% of diet DM). Diets were fed as a total mixed ration beginning after calving. The C diet contained (dry matter [DM] basis) 30% alfalfa hay, 15% corn silage, 32% corn, 9.3% whole cottonseed, 4.4% solvent soybean meal (SBM), and 3.3% expeller SBM. The WCGF replaced 10% alfalfa hay, 5% corn silage, and 5% corn grain, while expeller SBM replaced solvent SBM to maintain diet rumen undegradable protein. The SHSL replaced 10% alfalfa hay, 5% corn silage, 3% solvent SBM, and 2% corn. Dietary crude protein averaged 18.4%. Milk, energy-corrected milk (ECM), DM intake (DMI), and ECM/DMI were similar among diets during the first 13 wk of lactation. During wk 14 through 30 postpartum, WCGF and SHSL improved milk, ECM, milk component yield, and ECM/DMI. In Experiment 2, 6 cows were used to evaluate digestibility and rumen traits. Dry matter intake and total tract digestibilities of DM, fiber, and crude protein were not different among diets. Diets did not affect ruminal liquid dilution rate, pH, or concentrations of total volatile fatty acids or ammonia, but acetate:propionate was higher for C (3.38) than for WCGF (2.79) or SHSL (2.89). The WCGF and SHSL products can serve as alternative feedstuffs in diets fed to lactating dairy cattle.

Key Words: wet corn gluten feed • soybean hull • corn steep liquor • byproduct

Abbreviation key: C = control, ECM = energy-corrected milk, ME = mature equivalent, SBM = soybean meal, SHSL = soybean hull steep liquor pellet, WCGF = wet corn gluten feed




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P. J. Kononoff, S. K. Ivan, W. Matzke, R. J. Grant, R. A. Stock, and T. J. Klopfenstein
Milk production of dairy cows fed wet corn gluten feed during the dry period and lactation.
J Dairy Sci, July 1, 2006; 89(7): 2608 - 2617.
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