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Journal of Dairy Science Vol. 85 No. 5 1237-1242
© 2002 by American Dairy Science Association ®
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Lactoferrin Supplementation to Dairy Calves

R. S. Joslin 1, P. S. Erickson 1, H. M. Santoro 1, N. L. Whitehouse 1, C. G. Schwab 1, and J. J. Rejman 2

1 Department of Animal and Nutritional Sciences, Ritzman Animal Nutrition Laboratory, University of New Hampshire, Durham 03824
2 ImmuCell Corporation, 56 Evergreen Drive, Portland, ME 04103

Twenty-one Holstein calves (12 bulls, 9 heifers) were used to evaluate the effects of supplemental lactoferrin (0, 1, and 10 g/d) added to colostrum, milk, and milk replacer in a 56-d study. Calves fed lactoferrin (LF) weighed more during wk 2, 3, 4, 5, and 6 than control calves. Calves fed LF had increased preweaning daily weight gains and heart girth gains compared with calves not fed lactoferrin. Calves fed 1 g/d LF had a greater preweaning average daily gain than calves fed 10 g/d of lactoferrin. Hematocrit and serum Fe were unaffected by treatments. Calves were weaned when they had consumed 0.7 kg of calf starter grain for 2 consecutive d and were at least 28 d of age. All calves were weaned by 35 d of age, regardless of starter intake. Calves fed LF consumed more calf starter grain during the preweaning period and met weaning criteria at a younger age. This study indicates that supplementing calf diets with LF is advantageous to calf performance.

Key Words: calf • lactoferrin • weaning • growth

Submitted on July 31, 2001
Accepted on December 19, 2001




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