J. Anim Sci.
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J. Anim Sci. 1988. 66:522-531.
© 1988 American Society of Animal Science
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Corn Gluten Feed Supplementation of Grass Hay Diets for Beef Cows and Yearling Heifers1,2,

C. S. Cordes3, K. E. Turner3, J. A. Paterson3, J.G.P. Bowman3 and J. R. Forwood4

University of Missouri, Columbia 65211

Abstract

The effects of supplementing grass hay diets with dry or wet corn gluten feed (CGF) or cornurea supplements were evaluated by an in vitro experiment, four digestion trials and a growth trial. After 72 h of in vitro incubation, extents of neutral detergent fiber (NDF) disappearance were similar among dry CGF, wet CGF and corn bran (avg of 81.7%). Rates of dry matter disappearance of timothy hay measured in situ, ruminal particulate and liquid passage rates and ruminal volume were not changed (P>.10) by either corn-urea or dry CGF supplementation of timothy hay compared with the unsupplemented diet. However, corn-urea supplementation reduced hay dry matter digestibility in situ by 12% (P<.05) after 24 h and by 6% (P<.10) after 48 h compared with the unsupplemented hay diet. Dry CGF supplementation did not change (P>.10) hay digestibility. Supplementation of orchardgrass hay increased total organic matter intake compared with the unsupplemented diet, with a greater response measured for wet and dry CGF supplements than for corn-urea supplement. It was estimated that the corn-urea supplement depressed digestibility of timothy hay NDF by 13%, whereas CGF supplements depressed hay NDF digestibility an average of 4.3%. Supplementation increased total N and protein-N flows to the abomasum and N balance in beef cows compared with unsupplemented hay diets. No differences (P>.10) among supplements were mea- sured for total N and protein-N flow to the abomasum or N balance. Rate of gain by yearling heifers was greater (P<.05) when diets of tall fescue hay were supplemented with dry CGF or a mixture of dry CGF and corn-urea than when supplemented with corn-urea only. These data suggest that CGF supplementation of grass hay diets does not depress hay intake and reduce digestibility of hay NDF compared with corn-urea supplementation.

Footnotes

1 Journal Paper No. 10271 of the Missouri Agric. Exp. Sta.

2 Supported in part by the Missouri Cattlemen’s Assoc, Ashland; Missouri Farm Bureau, Jefferson City; Archer Daniels Midland Co., Decatur, IL and the Missouri Research Assistance Act.

3 Dept. of Anim. Sci.

4 USDA-ARS, Dept. of Agron.




This article has been cited by other articles:


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S. P. Montgomery, J. S. Drouillard, J. J. Sindt, T. B. Farran, J. N. Pike, A. M. Trater, C. M. Coetzer, H. J. LaBrune, R. D. Hunter, and R. A. Stock
Combinations of alfalfa hay and wet corn gluten feed in limit-fed growing diets for beef cattle
J Anim Sci, July 1, 2003; 81(7): 1671 - 1680.
[Abstract] [Full Text] [PDF]


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