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The Value of Vitamin B₁₂, DL-Methionine and Potassium-Penicillin in Milk Replacement Formulas for Dairy Calves^1,2

Pennsylvania Agricultural Experiment Station, State College

ABSTRACT

The addition of vitamin B₁₂ as well as DL-methionine to a milk replacement formula did not increase growth rates of young dairy calves. These negative findings with vitamin B₁₂ supplementation corroborate former work done at this station. A milk replacement containing potassium-penicillin significantly decreased the rate of gain in weight of dairy calves and lowered the amount of starter consumed by them.

¹ The authors wish to acknowledge the support of the Commercial Solvents Corp., New York, in supplying materials for these investigations.

² Authorized for publication as paper no. 1706 in the Journal Series of the Pennsylvania Agricultural Experiment Station.