J. Anim Sci.
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J. Anim Sci. 1982. 54:18-22.
© 1982 American Society of Animal Science
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Effect of Feeding Wet Brewers Grains to Beef Heifers on Wintering Performance, Serum Selenium and Reproductive Performance1,2,3

R. G. Crickenberger4 and B. H. Johnson4

North Carolina State University, Raleigh 27650

Abstract

Wet brewers grains (WBG) were evaluated as a feed source for growing Angus heifers (201 kg, 313 d of age) during a 112-d wintering trial. Effects on growth, feed efficiency, serum Se and first breeding performance were examined. Three replications of four heifers each were fed the following diets: (1) corn silage with no protein supplement (CSNS); (2) corn silage plus 33.8% of the diet dry matter (DM) from WBG (CSWBG), and (3) WBG, corn and fescue hay at 62.2, 10.8 and 26.1% of diet DM, respectively (WBGCH). Average daily gains for heifers fed CSNS, CSWBG and WBGCH were .50, .73 and .56 kg/head (P< .05), and DM:gain ratios were 9.52, 6.34 and 6.13 (P<.05), respectively. Serum Se concentrations were higher (P<.01) in heifers fed diets containing WBG than in heifers fed CSNS. Serum Se concentrations were also influenced by sampling time (P<.01) and the diet X samp-pling time interaction (P<.05). At the end of the trial, serum Se concentrations were .050, .085 and .105 ppm (P<.01), respectively, for heifers on the three dietary treatments. Following a 66-d breeding period, 12 of 12 heifers fed CSNS and WBGCH diets and 10 of 12 heifers fed CSWBG were diagnosed pregnant and subsequently calved.

Key Words: Wet Brewers Grains • Corn Silage • Growth • Beef Heifers • Serum Selenium

Footnotes

1 Paper No. 6773 of the Journal Series of the North Carolina Agr. Res. Service, Raleigh.

2 Partial financial support was furnished by the Pillsbury Company, Bloomington, MN.

3 Appreciation is expressed to Dr. E. C. Segerson, North Carolina A and T State Univ. for performing selenium analyses.

4 Dept. of Anim. Sci.






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Copyright © 1982 by the American Society of Animal Science.