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Effectiveness of a commercial PROBIOTIC for water and sludge management on an inland shrimp aquaculture farm in Thailand Supervisor: Dr. M. Flaherty Shrimp aquaculture, particularly the culture of Penaeus monodon (black-tiger shrimp), has expanded rapidly throughout Asia in recent decades. Thailand has emerged as the world?s leading producer, placing it at the forefront of a competitive international market that currently gives high value to seafood products. In order to meet this intense demand, new technologies are continually being developed and new farms are being established in areas not previously used for aquaculture. |
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WHAT IS BETA GLUCAN? Beta glucan is a complex carbohydrate or biopolymer of glucose, a simple sugar. It is derived from several sources, including yeast, bacteria, fungi and cereals, such as oats, barley and rye. Each type of beta glucan has a unique structure in which glucose is linked together in different ways, giving them physical properties. For example, beta 1,3 glucan derived from bacteria and algae is linear, making it useful as a food thickener. Yeast beta glucan is branched with ?,6 and ?,3 glucans, enhancing its ability to bind and stimulate macrophages. The chemical structure of beta 1,3- glucan is dependent on the source and, based on extensive published research, it is widely accepted that the beta 1,3-glucan purified from baker's yeast (Saccharomyces cerevisiae) is the most potent anti-infective beta-glucan immunomodulator . Yeast-derived beta 1,3-glucans work, in part, by stimulating the innate anti-fungal immune mechanisms to fight a range of foreign challenges. |
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