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The relation between the colour and vitamin A of butter and the feed of the cow

Converse, H.T.; Wiseman, H.G.; Meigs, E.B.

Proc. Amer. Soc. Animal Prod: 50-54

1935


Accession: 013579720

The carotene content of butter determined photo-electrically and the vitamin A potency of milk determined by tests on rats, varied with the carotene content of the diet of the cows.

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