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Journal of Dairy Science Vol. 77 No. 7 1882-1889
© 1994 by American Dairy Science Association ®
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Evaluation of Calf Starters Containing Different Amounts of Crude Protein for Growth of Holstein Calves

J. M. Akayezu 1, J. G. Linn 1, D. E. Otterby 1, W. P. Hansen 1, and D. G. Johnson 2

1 Department of Animal Science, University of Minnesota, St. Paul 55108
2 West Central Experiment Station, University of Minnesota, Morris 56267

Holstein calves (n = 110) were used to evaluate the effect of calf starters containing 15, 16.8, 19.6, or 22.4% CP, DM basis (diets A, B, C, and D, respectively), on calf performance from d 4 to 56 of life. Preweaning daily gain tended to increase linearly as protein content of diets increased, averaging .37, .39, .38, and .44 kg/d for diets A, B, C, and D, respectively. After weaning, calves fed diet C gained the most (.86 versus .71, .75, and .79 kg/d for A, B, and D, respectively). Overall BW gains from d 4 to 56 averaged .54, .56, .62, and .61 kg/d for A, B, C, and D, respectively. Throughout the experiment, starter consumption tended to increase as CP content of diet increased. Under these conditions, maximum growth was supported by diet C (19.6% CP); no advantage was gained from higher (22.4%) protein content. Calf growth was moderate when calf starters of lower protein contents (15 or 16.8%) were fed.

Key Words: calves • starter • protein

Submitted on October 7, 1993
Accepted on February 25, 1994




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S. T. Franklin, D. M. Amaral-Phillips, J. A. Jackson, and A. A. Campbell
Health and Performance of Holstein Calves that Suckled or Were Hand-Fed Colostrum and Were Fed One of Three Physical Forms of Starter
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[Abstract] [Full Text] [PDF]


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Copyright © 1994 by the American Dairy Science Association ®.