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The Comparative Value of Cod-Liver Oil Alone and in Combination With Irradiated Ergosterol as a Source of Vitamin D for Confined Laying Hens


Author:
Nestler, Ralph B.
Source:
USDA
Year:
1938
Format:
p. 209-219.
Language:
English
Collection:
USDA publications
Permanent URL:
http://handle.nal.usda.gov/10113/IND43969119