Abstract
Summary
Two strains of rats were selected which showed significant differences in their requirement of choline. Tests on the progeny of each strain proved that this difference continued through the F3 generation. The minimum daily choline requirement of the strain LCR was approximately 4 to 6 mg per rat on diet 31PMC, and the minimum daily choline requirement of the strain HCR on the same diet was above 10 mg per rat.
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