World Aquaculture Society Meetings


Your browser does not support the most current secure communications protocol. The World Aquaculture Society is committed to the security of your private information. In order to accept credit card data on this site we are recquired to be in compliance with Payment Card Industry (PCI) standards. Current PCI standards will not allow us to accept traffic from browsers that do not support TLS 1.2 after June 30, 2018. We are alerting you to the important need to update your browser. Changes to our web server made on or before June 30, 2018 will make unavailable with the browser you are currently using. [More..]

Add To Calendar 27/04/2016 15:10:0027/04/2016 15:30:00Africa/JohannesburgAsian-Pacific Aquaculture 2016GROWTH, ANTIOXIDANT ACTIVITY AND HISTOPATHOLOGY OF JUVENILE BARRAMUNDI (Lates calcarifer) FED HIGH SOYBEAN MEAL DIETS SIMULTANEOUSLY SUPPLEMENTED WITH ORGANIC SELENIUM VIP Room 1The World Aquaculture Societyjohnc@was.orgfalseanrl65yqlzh3g1q0dme13067DD/MM/YYYY


Ilham*, I Nyoman Soeyasa, Ravi Fotedar
Department of Aquatic Resources Management
Jakarta Fisheries University Jl. AUP Pasar Minggu Jaksel 12520 Indonesia

The use of fishmeal (FM) as the major protein source for aquaculture production has been plagued by both economic and environmental objections. While FM is disputably sustainable, increased demand for FM from rapidly expanding aquaculture can be expected to remain high in the long term. Soybean meal (SBM) has been commonly utilised as a substitute for FM in the diets of several fish species. However, little is known regarding their effects on trace element availability and thus their importance to fish. The present study employed two feeding trials to evaluate the implications of dietary SBM and selenium (Se) on the growth, accumulation, antioxidant and histopathological responses of juvenile barramundi (Lates calcarifer).

In the first trial, each of three basal diets containing 0%, 15% and 43% SBM as replacements for 0%, 25% and 75% of FM protein on an isoproteic and isocalorific basis were either supplemented or not supplemented with 2 mg kg-1 organic Se (OS). In the second trial, the potential effect of OS supplementation in a high SBM diet was investigated in a feeding trial with five experimental diets: 75% SBM protein as replacement of FM was supplemented with 2, 3, 4, 5 or 7 mg OS kg-1. Growth was independently influenced by the SBM level and the OS supplementation level but not by their interaction. Glutathione peroxidase (GPx) activity, haematocrit, Se accumulation and muscle tissue integrity were significantly enhanced in fish fed on OS-supplemented diets. Furthermore, when high SBM was included in diets, elevated Se tended to lower the barramundi's performance. Histological abnormalities (falsification, disconnection, and longitudinal rupture of muscle fibres) were found in the muscle of fish fed the diets lacking OS supplementation.

These findings suggest that dietary supplementation of OS at 2-3 g kg-1 is necessary when high plant protein ingredients are incorporated in the diet, in order to maintain better growth and to afford protection against oxidative stress.

Copyright © 2001-2018 World Aquaculture Society All Rights Reserved.