Dynamics of lipid content during early development of freshwater salmon Salmo salar L.

Dynamics of lipid content during early development of freshwater salmon Salmo salar L. Dynamics of lipid and phospholipid content was studied during early development of freshwater salmon Salmo salar L. from blastodisc formation (3 h) to hatching (108 days) as well as in eggs before fertilization. High and stable content of total lipids including structural phospholipids as well as relatively high content of triglycerides and its slight increase at the time of hatching have been demonstrated, which can indicate their utilization as the main energy source after hatching under conditions of deficient food and low fry activity for some time. Accumulation of a certain level of lipids in eggs before spawning is required for embryonic development and high survival after hatching. The significance of increasing and decreasing levels of structural lipids modulating membrane enzyme activities in metabolic changes before hatching is discussed. http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png Russian Journal of Developmental Biology Springer Journals

Dynamics of lipid content during early development of freshwater salmon Salmo salar L.

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Publisher
SP MAIK Nauka/Interperiodica
Copyright
Copyright © 2009 by Pleiades Publishing, Ltd.
Subject
Life Sciences; Animal Anatomy / Morphology / Histology; Developmental Biology
ISSN
1062-3604
eISSN
1608-3326
D.O.I.
10.1134/S1062360409030059
Publisher site
See Article on Publisher Site

Abstract

Dynamics of lipid and phospholipid content was studied during early development of freshwater salmon Salmo salar L. from blastodisc formation (3 h) to hatching (108 days) as well as in eggs before fertilization. High and stable content of total lipids including structural phospholipids as well as relatively high content of triglycerides and its slight increase at the time of hatching have been demonstrated, which can indicate their utilization as the main energy source after hatching under conditions of deficient food and low fry activity for some time. Accumulation of a certain level of lipids in eggs before spawning is required for embryonic development and high survival after hatching. The significance of increasing and decreasing levels of structural lipids modulating membrane enzyme activities in metabolic changes before hatching is discussed.

Journal

Russian Journal of Developmental BiologySpringer Journals

Published: Jun 6, 2009

References

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