Effects of replacing fish meal by soybean meal along with supplementing phosphorus and magnesium in diet on growth performance of Persian sturgeon, Acipenser persicus.
Identifieur interne : 000447 ( Main/Exploration ); précédent : 000446; suivant : 000448Effects of replacing fish meal by soybean meal along with supplementing phosphorus and magnesium in diet on growth performance of Persian sturgeon, Acipenser persicus.
Auteurs : Mohamad Reza Imanpoor [Iran] ; Tahere BagheriSource :
- Fish physiology and biochemistry [ 1573-5168 ] ; 2012.
English descriptors
- KwdEn :
- MESH :
- chemical , administration & dosage : 6-Phytase, Magnesium, Phosphorus.
- blood : Fishes.
- growth & development : Fishes.
- Animals, Aquaculture, Diet, Dietary Supplements, Soybeans.
Abstract
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.
DOI: 10.1007/s10695-011-9532-x
PubMed: 21735241
Affiliations:
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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.</div></front></TEI><affiliations><list><country><li>Iran</li></country></list><tree><noCountry><name sortKey="Bagheri, Tahere" sort="Bagheri, Tahere" uniqKey="Bagheri T" first="Tahere" last="Bagheri">Tahere Bagheri</name></noCountry><country name="Iran"><noRegion><name sortKey="Imanpoor, Mohamad Reza" sort="Imanpoor, Mohamad Reza" uniqKey="Imanpoor M" first="Mohamad Reza" last="Imanpoor">Mohamad Reza Imanpoor</name></noRegion></country></tree></affiliations></record>Pour manipuler ce document sous Unix (Dilib)
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