| Effects of replacing fish meal by soybean meal along with supplementing phosphorus and magnesium in diet on growth performance of Persian sturgeon, Acipenser persicus. | |
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MedLine Citation:
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PMID: 21735241 Owner: NLM Status: Publisher |
Abstract/OtherAbstract:
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Looking for replacing fish meal by cheaper and more sustainable protein sources is essential for reducing the cost of fish feeds. Soybean meal is a suitable alternative protein sources for carnivorous fish such as Persian sturgeon, Acipenser persicus. However, it contains antinutritional factors that may affect bioavailability of minerals and lead in reduced growth. Achieving a cost-effective diet that does not have negative effects on growth is the goal of aquaculture programs. A 10-week experiment was conducted with Persian sturgeon (352.07 ± 5.51 g) to determine the combined effects of phosphorous (SP), magnesium and phosphorous (SPMg), phytase (SF), phytase and magnesium (SFMg), phosphorous and phytase (SPF), phosphorous, magnesium and phytase (SPMgF) on weight gain, feed efficiency, specific growth rate, and condition factor. A control diet was prepared with fish meal as a control group. Inclusion of P, Mg, and phytase contents within soybean diets did not improve feed efficiency, and still, the control diet containing fish meal showed better weight gain and feed efficiency. Among soybean meal groups, feed efficiency and specific growth rate were significantly improved for fish fed the diet containing just phytase (SF) and both phytase and phosphorus (P ≤ 0.05). It was true for specific growth rate and condition factor. Phytase significantly enhanced growth whether included with or without phosphorous. This study showed that fish meal is more sufficient for Persian sturgeon, and soybean meal could be partly an alternative protein source if phosphorous supplied for fish by incorporation with microbial phytase or phosphorous. |
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Authors:
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Mohamad Reza Imanpoor; Tahere Bagheri |
Publication Detail:
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Type: JOURNAL ARTICLE Date: 2011-7-7 |
Journal Detail:
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Title: Fish physiology and biochemistry Volume: - ISSN: 1573-5168 ISO Abbreviation: - Publication Date: 2011 Jul |
Date Detail:
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Created Date: 2011-7-7 Completed Date: - Revised Date: - |
Medline Journal Info:
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Nlm Unique ID: 100955049 Medline TA: Fish Physiol Biochem Country: - |
Other Details:
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Languages: ENG Pagination: - Citation Subset: - |
Affiliation:
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Fisheries Group, Gorgan University of Agricultural Sciences and Natural Resources, Gorgan, Iran, mrimanpoor@yahoo.com. |
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From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine
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