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Massachusetts Agricultural Experiment Station, Amherst
ABSTRACT
Milk from six cows fed alternately for a 4-month period on a control ration and one containing an aluminum supplement (potassium alum), was analyzed photometrically for its aluminum content. The control samples contained on the average 0.46 mg. of aluminum per liter; the samples obtained when the cows received the supplement averaged 0.81 mg. per liter. The average difference of 0.35 mg. was significant at the 5% level.
1 Contribution No. 962 of the Massachusetts Agricultural Experiment Sation.
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