Studies on the Whale Oil-III:Properties of Oils Contained in Various Parts of a Whale Body (Part-3) On the Foetus of Sperm Whale

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The oils of sperm whale differ from those of other whales in that they consist mainly of esters (waxes) of higher aliphatic alcohols and acids, with only subordinate amounts of glycerides. The process of the occurrence of those waxes may be considercd in many ways; i.e. the syn-thesis in the animal body, the accumulation of food constituent, etc. We studied on the oils from foetus of the sperm whale from the view point of fat metabolism, zs the foetus takes the nutrition from the mother's body and not from the food. The results obtained show some interesting facts: i.e. the contents of the deposit fat are very low, head oil does not exist in head oil organ, and only a amall quantity of unsaponifiable matter is seen in the oils of foetus. Those results were compared with the results on adult body that we reported previously.
社団法人日本水産学会の論文