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Department of Dairy Husbandry, The Pennsylvania Agricultural Experiment Station, State College
ABSTRACT
The feeding of 2, 6, and 10 g. of aureomycin per 100 lb. of milk replacement fed to Holstein bull calves resulted in statistically significant increased rates of gain in body weight as compared to gains of controls. Although mean gains in wither heights of all groups of calves were greater for those that received aureomycin during the 7 weeks trial, these differences only approached significance (P < 0.05).
No differences in efficiency of starter or hay utilization were found. The incidence of scours was low and not related to the aureomycin fed.
1 Authorized for publication as paper No. 1800 in the Journal Series of the Pennsylvania Agricultural Experiment Station.
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