Marine yeasts as source of single cell protein and immunostimulant for application in penaeid prawn culture systems

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Marine yeasts as source of single cell protein and immunostimulant for application in penaeid prawn culture systems

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Title: Marine yeasts as source of single cell protein and immunostimulant for application in penaeid prawn culture systems
Author: Sarlin, P J; Dr. Rosamma, Philip
Abstract: The study revealed the potential of marine yeasts as a source of single cell protein and immunostimulant for prawns. Prawns fed with the selected marine yeasts were showing more growth compared to the control feed and commercial feed. Yeasts being rich with proteins, vitamins and carbohydrates serve as a growth promoter for prawns as being evidenced in this study. The better performance of marine yeasts, D. hansenii S8 and S100 and C. tropicalis S186 compared to S. cerevisiae S36 as a feed supplement is worth investigating. Besides being a rich nutritional source, yeasts act as immunostimulants by virtue of its high carbohydrate (Beta, 1-3 glucan) and RNA content. Beta, 1-3 glucan, a cell wall component of yeasts /fungi is the most commonly used immunostimulant in aquaculture. The present study shows that even the whole cell yeast could serve as a good immunostimulant when supplied through diet. Extraction of Beta-1,3 glucan results in the removal of nutrients like proteins, vitamins etc. from the cell biomass.Utilization of the yeast biomass as such in the diet would help perform a dual role as nutritional component and immunostimulant for aquaculture applications.
Description: Dept.of Marine Biology, Microbiology and Biochemistry, Cochin University of Science and Technology
URI: http://dyuthi.cusat.ac.in/purl/2273
Date: 2005


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