18/08/2014: Future drugs from sea cucumbers

In a recent research report from Yadollah Bahrami et al (Department of Medical Biotechnology, School of Medicine, Flinders University, Adelaide) on the subject of Sea cucumbers being prolific producers of a wide range of bioactive compounds.
 

The Sea Cucumber

This study aimed to purify and characterize one class of compound, the saponins, from the viscera of the Australian sea cucumber Holothuria lessoni. The saponins were obtained by ethanolic extraction of the viscera and enriched by a liquid-liquid partition process and adsorption column chromatography. The conclusion of the report is there is an abundance of novel compounds from this species which holds promise for biotechnological applications.

Read more HERE.

The Aquaculturists
This blog is maintained by The Aquaculturists staff and is supported by the
magazine International Aquafeed which is published by Perendale Publishers Ltd

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18/08/2014: Formulated semi-moist diets of common octopus

In the latest edition of Aquaculture Nutrition Early View (Online Version of Record published before inclusion in an issue) a research report on effective use of glucose rather than starch in formulated semi-moist diets of common octopus (Octopus vulgaris) is published. 
 

Common octopus

One of the world’s most fascinating animals, the Octopus is a cephalopod mollusc of the order Octopoda. Octopuses have two eyes and four pairs of arms and, like other cephalopods, they are bilaterally symmetric.

The development of octopus aquaculture, the farming of octopus, is being driven by strong market demands in the Mediterranean and in South American and Asian countries. Octopus live short lives, growing rapidly and maturing early. They typically reach two or three kilograms (high weights for invertebrates).

Read more HERE.

The Aquaculturists
This blog is maintained by The Aquaculturists staff and is supported by the
magazine International Aquafeed which is published by Perendale Publishers Ltd

For additional daily news from aquaculture around the world: aquacutlure-news

18/08/2014: Factors relevant to nutrition of Tridacnidae giant clams

Tridacnid giant clams are of commercial interest for their nutritional, economic and ecological significance throughout the Indo-Pacific and Oceania. A major impediment to culturing tridacnid giant clams is larval mortality and that issue is researched in this paper.
 

Tridacnid giant clams are of interest for their nutritional significance

The review examines culture techniques known to enhance gamete viability of several marine viable bivalves of commercial interest, and critically assesses whether such methods are applicable to tridacnids in culture conditions. Included are suggestions for optimizing nutritional conditions from gametogenesis through embryonic development, and conclude with a primer of research opportunities based on gaps in our understanding of tridacnid pre-veliger nutrition compared with other bivalves.

A major conclusion is that culture protocols should include pre-veliger nutritional fitness as a critical factor in enhancing larval survival, growth and development.

Read more HERE.

The Aquaculturists
This blog is maintained by The Aquaculturists staff and is supported by the
magazine International Aquafeed which is published by Perendale Publishers Ltd

For additional daily news from aquaculture around the world: aquacutlure-news