Please use this identifier to cite or link to this item: http://hdl.handle.net/10524/63850

Effects of dietary starch levels on growth, feed utilization, glucose and lipid metabolism in non-transgenic and transgenic juvenile common carp (Cyprinus carpio L.)

File Size Format  
24282.pdf 2.04 MB Adobe PDF View/Open

Item Summary

dc.contributor.author Guo, Wei
dc.contributor.author Fu, Lele
dc.contributor.author Wu, Yunya
dc.contributor.author Liu, Haokun
dc.contributor.author Yang, Yunxia
dc.contributor.author Hu, Wei
dc.contributor.author Xie, Shougi
dc.date.accessioned 2021-05-24T16:04:40Z
dc.date.available 2021-05-24T16:04:40Z
dc.date.issued 2021
dc.identifier.issn 0792-156X
dc.identifier.uri http://hdl.handle.net/10524/63850
dc.description.abstract This experiment investigated the effects of dietary starch on growth performance, feed utilization, glucose and lipid metabolism of non-transgenic and growth hormone (GH) transgenic juvenile common carp (<em>Cyprinus carpio</em> L.). Transgenic common carp (TG fish) and non-transgenic (NT fish) were fed diets with five starch levels (0, 10%, 20%, 30%, 40%). After 41 days, TG fish showed higher growth and feed utilization at low-starch diets, while similar growth, lower feeding rate (FR) and slightly higher feed efficiency (FE) was observed at high-starch diets. Lower plasma glucose level and hepatic glycogen content were observed in TG fish, which could be related to the higher glycolysis (high gene expression of hexokinase (hk), p < 0.01) and gluconeogenesis (high gene expression of fructose-1,6-bisphosphatase (fbpase), p < 0.01; glucose-6-phosphatase (g6pase), p < 0.01) of TG fish. Compared to NT fish, weakened fat synthesis (lower gene expression of fatty-acid synthase (fas), p <0.01; acetyl-CoA carboxylase 1 (acc1), p < 0.01; acyl-CoA desaturase 1 (scd1), p = 0.011) and enhanced fatty acid oxidation (high gene expression of hormone-sensitive lipase (hsl), p =0.01; carnitine palmitoyl transferase 1a (cpt-1a), p < 0.01), led to the decrease of body lipid content in TG fish. On the other hand, with increased dietary starch, increased body lipid and hepatic glycogen contents were observed in both TG and NT fish, suggesting that high dietary starch levels promoted glycolysis, fat synthesis and inhibited gluconeogenesis, fatty acid β-oxidation. Overall, TG fish showed higher growth performance at low starch diets, and higher ability of glycolysis, fatty acid oxidation and lower lipid synthesis than the NT fish.
dc.format.extent 15 pages
dc.relation.ispartof The Israeli Journal of Aquaculture - Bamidgeh
dc.subject growth hormone gh
dc.subject transgenic
dc.subject common carp
dc.subject cyprinus carpio
dc.subject dietary starch
dc.subject feed utilization
dc.subject gene expression
dc.subject non-transgenic
dc.title Effects of dietary starch levels on growth, feed utilization, glucose and lipid metabolism in non-transgenic and transgenic juvenile common carp (<em>Cyprinus carpio</em> L.)
dc.type Article
dc.type.dcmi Text
prism.volume 73
dc.identifier.doi https://doi.org/10.46989/001c.24282
Appears in Collections: Volume 73, 2021


Please email libraryada-l@lists.hawaii.edu if you need this content in ADA-compliant format.

Items in eVols are protected by copyright, with all rights reserved, unless otherwise indicated.