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Journal of Dairy Science Vol. 56 No. 6 783-788
© 1973 by American Dairy Science Association ®
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Rapeseed, Sunflower, and Soybean Meal Supplementation of Calf Rations1

P. E. Stake2,3,, M. J. Owens and D. J. Schingoethe

Dairy Science, Department, South Dakota State University, Brookings 57006

ABSTRACT

Forty-eight Holstein calves were divided into three equal groups and fed starter rations supplemented with rape-seed meal, sunflower meal, or soybean meal from birth to 14 wk of age. Each calf received alfalfa-brome hay ad libitum and up to 3.64 kg whole milk/day until weaned at 68.2 kg body weight. Daily starter dry-matter intake was lower for rapeseed, .67 kg/calf, than .92 and .99 kg for sunflower and soybean rations. Average daily gain (kg) and feed efficiencies (kg feed dry matter/kg gain) for calves fed rapeseed, sunflower, or soybean meals were .58, .64, .65, and 3.10, 2.96, 3.08. Digestible dry matter of soybean and rapeseed was higher than sunflower: 75 and 74 vs. 68%. Protein digestibilities for rapeseed, sunflower, and soybean meals were 79, 82, and 82%. Large variations occurred in amounts of rumen ammonia, blood urea, and blood ammonia. Rapeseed and sunflower meals can be used successfully as protein supplements in calf starter rations though the former may be unpalatable.

FOOTNOTES

1 Published with the approval of the Director of the South Dakota Agricultural Experiment Station as Publication 1128 of the Journal Series.

2 This paper is taken from a thesis submitted by the senior author in partial fulfillment of the requirements for the M.S. degree at South Dakota State University.

3 Present address: Dairy Science Department, University of Georgia, Athens 30601.






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Copyright © 1973 by the American Dairy Science Association ®.