Effects of Dietary Phosphorus Levels on Growth Performance, Plasma Biochemical Parameters and Relative Gene Expression of Lipogenesis of Bighead Carp, Aristichthys nobilis

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dc.contributor.author Ji, K.
dc.contributor.author Liang, H.
dc.contributor.author Mi, H.
dc.contributor.author Mokrani, A.
dc.contributor.author Xie J.
dc.contributor.author Liu, B.
dc.contributor.author Ge X.
dc.contributor.author Ren, M.
dc.date.accessioned 2017-12-28T02:34:52Z
dc.date.available 2017-12-28T02:34:52Z
dc.date.issued 2017
dc.description.abstract An 8-week feeding trial was conducted to investigate the effects of dietary phosphorus levels on growth performance, plasma biochemical parameters, and lipogenesis gene expression of bighead carp. The results showed that weight gain (WG) and specific growth rate (SGR) increased with increasing dietary phosphorus levels up to 1.12%, and after that decreased. Feed conversion ratio (FCR) showed a converse trend compared with WG. Whole body protein and lipid contents significantly increased and decreased with increasing dietary phosphorus levels, respectively (P<0.05), whereas moisture and ash contents were not significantly affected by the dietary phosphorus levels (P>0.05). The highest values of the hepatosomatic index (HSI), total protein, and albumin contents were observed with 1.12% dietary phosphorus supplementation (P<0.05). Glucose levels increased with dietary phosphorus up to the level 1.32% phosphorus supplementation, and then decreased. Serum total cholesterol, total triglyceride, aspartate aminotransferase, alanine aminotransferase, and alkaline phosphates activity were not significantly affected by dietary phosphorus levels (P>0.05). Excess phosphorus levels (1.32% and 1.59%) significantly down-regulated the relative gene expression levels of sterol regulatory element binding protein (SREBP) -1 and fatty acid synthase (FAS) (P<0.05). Based on WG and FCR, the optimal dietary phosphorus level should be 1.16%, using quadratic regression analysis.
dc.format.extent 9 pages
dc.identifier.issn 0792-156X
dc.identifier.uri http://hdl.handle.net/10524/57057
dc.subject Bighead carp
dc.subject Phosphorus
dc.subject Growth
dc.subject Requirement
dc.subject Gene expression
dc.subject.lcsh Fish culture--Israel.
dc.subject.lcsh Fish culture
dc.title Effects of Dietary Phosphorus Levels on Growth Performance, Plasma Biochemical Parameters and Relative Gene Expression of Lipogenesis of Bighead Carp, Aristichthys nobilis
dc.type Article
dc.type.dcmi Text
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