Effects of Essential Fatty Acids Containing Natural and Commercial Diets on Larvae Rearing of the Green Mud Crab <i>Scylla Paramamosain</i> (Estampador 1949)

Authors

  • M. L. Islam Bangladesh Fisheries Research Institute (BFRI)
  • M. S. Islam Universiti Malaysia Terengganu, Malaysia
  • K. Yahya University Sains Malaysia; Penang, Malaysia
  • R. Hashim University Sains Malaysia; Penang, Malaysia

DOI:

https://doi.org/10.3329/jsr.v1i1.28805

Keywords:

Effects, Diets, EFA's, Larvae, Mud crab.

Abstract

Effect of essential fatty acids (EFA) on growth and survival of the green mud crab (Scylla paramamosain) larvae was assessed by feeding with natural to commercial diets. The feeding schemes were: larvae reared with Artemia (T1); larvae initially fed with rotifers (up to Z2) and ended (Z3 to megalopa) with Artemia (T2); and larvae fed with rotifers up to Z2 and ended (Z3 to megalopa) with commercial diet (T3). The commercial diet had significantly (p<0.05) higher levels of docosahexaenoic acid (11.23%), ?n-3s (15.90%) and ?n-6s (4.21%); and lacked in eicosapentaenoic acid (2.25%) than rotifer and Artemia. The earliest commencement of megalopa stage within 15 days with significantly (p<0.05) higher larval stage index (LSI) of 5.90±0.17 was achieved from the feeding scheme of T2 than other two feeding schemes. This feeding scheme deposited 17.32±0.19% eicosapentaenoic acid (EPA) and 3.82±0.11% docosahexaenoic acid (DHA); the ?n-3 to ?n-6 ratio of 0.20 and EPA to DHA ratio of 0.22 in megalopa, that stimulated significantly higher (p<0.05) megalopa survival (20.00±6.96%) indicating the superiority over rest feeding schemes. Meanwhile, some deformities and mortalities in Z5 and megalopa stages suggested further studies for optimization of specific fatty acid requirements for late larval stages (Z5 and megalopa).

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Author Biographies

M. L. Islam, Bangladesh Fisheries Research Institute (BFRI)

Brackishwater Station, Bangladesh Fisheries Research Institute (BFRI), Senior Scientific Officer (SSO)

M. S. Islam, Universiti Malaysia Terengganu, Malaysia

Assistant Professor

K. Yahya, University Sains Malaysia; Penang, Malaysia

Associate Professor, School of Biological Sciences

R. Hashim, University Sains Malaysia; Penang, Malaysia

Professor, School of Biological Sciences

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Published

2017-01-01

How to Cite

Islam, M. L., Islam, M. S., Yahya, K., & Hashim, R. (2017). Effects of Essential Fatty Acids Containing Natural and Commercial Diets on Larvae Rearing of the Green Mud Crab <i>Scylla Paramamosain</i> (Estampador 1949). Journal of Scientific Research, 9(1), 109–126. https://doi.org/10.3329/jsr.v1i1.28805

Issue

Section

Section B: Chemical and Biological Sciences