Journal of the Faculty of Fisheries and Animal Husbandry, Hiroshima University Volume 11 Issue 2
1972-12-20 発行

Studies on Rainbow Trout Egg (Salmo gairdnerii irideus) : IV. Changes of Yolk Content During Embryogenesis

虹鱒卵の生化学的研究 : IV. 胚発生過程における卵内容物の変化
Nakagawa, Heisuke
Tsuchiya, Yasuhiko
The analysis of rainbow trout yolk during the development was made on the moisture, lipid, protein, and non-proteic nitrogen concurrently occurred in the yolk sac before consumption by the embryo. The electrophoretic analysis of the protein showed three components distributed there in the ratio of about 83:11:6, decreasing with the same ratio through all the developmental stages, although a change of the lipid content in the lipoprotein after hatching was observed.

The lipid of lipoprotein rapidly decreased and was consumed preferentially to the oil globule.