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Lipids and fatty acids in wild and pond-reared mud crab Scylla serrata (Forsskål) during ovarian maturation and spawning Alava, V.R.; Quinitio, E.T.; de Pedro, J.B.; Priolo, F.M.P.; Orozco, Z.G.A.; Wille, M. (2007). Lipids and fatty acids in wild and pond-reared mud crab Scylla serrata (Forsskål) during ovarian maturation and spawning. Aquac. Res. 38(14): 1468-1477. dx.doi.org/10.1111/j.1365-2109.2007.01793.x In: Aquaculture Research. Blackwell: Oxford. ISSN 1355-557X; e-ISSN 1365-2109

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Beschikbaar in	Auteurs
VLIZ: Open access 260670 [ download pdf ]

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Trefwoorden

Acids > Organic compounds > Organic acids > Fatty acids Maturation Secretory organs > Glands > Endocrine glands > Animal reproductive organs > Gonads > Ovaries Scylla serrata (Forskål, 1775) [WoRMS] Marien/Kust

Author keywords

mud crab; Scylla serrata; ovarian maturation; lipid classes and fatty acids

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Auteurs		Top
Alava, V.R. Quinitio, E.T. de Pedro, J.B.	Priolo, F.M.P. Orozco, Z.G.A. Wille, M.

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Abstract

Wild-caught and pond-reared female mud crab Scylla serrata at different stages of ovarian maturation were collected from Samar and Capiz, Philippines. Crabs were categorized into five stages according to the external morphological and microscopic appearance of the most advanced oocytes. The ovaries, hepatopancreas, muscle and newly spawned eggs (NSE) were analysed for lipid class components and fatty acids. Total lipid was higher in pond-reared than in wild-caught crabs but increased with ovarian maturation in both groups. Ovarian lipid peaked at the fully mature stage, coinciding with a decline in hepatopancreatic and muscle lipids. Lipid levels declined significantly in spent females. The tissues contained elevated highly unsaturated fatty acids such as arachidonic (20:4n-6), eicosapentaenoic (20:5n-3) and docosahexaenoic (22:6n-3) acids, but at higher levels in late maturing and fully mature ovaries and in NSE. The type of lipid class and fatty acid components in mature ovaries as well as in NSE are generally considered to be indicative of their importance in reproductive physiology and embryonic and larval development.

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