期刊
FISH PHYSIOLOGY AND BIOCHEMISTRY
卷 45, 期 5, 页码 1563-1573出版社
SPRINGER
DOI: 10.1007/s10695-019-00644-3
关键词
Lonicera japonica; Ctenopharyngodon idella; Growth performance; Lipid metabolism
资金
- Key Scientific and Technological Project of Henan Province [182102110007]
- Foundation for University Key Teachers from Henan Province [2018GGJS036]
- Innovation Scientists and Technicians Troop Construction Projects of Henan Province [CXTD2016043]
- National Nature Science Foundation of China [31672671, 31402311]
This study investigated the effects of honeysuckle extract (Lonicera japonica, HE) on the growth performance and lipid metabolism of juvenile grass carp (Ctenopharyngodon idella). HE at doses of 10 g kg(-1) (LHE), 20 g kg(-1) (MHE), and 40 g kg(-1) (HHE) were individually mixed with the basal diet and fed to grass carp for 10 weeks, and ginseng extract (20 g kg(-1), GSE) was used as a positive control. The results showed that HE administration exerted no effect on growth performance, but the hepatosomatic index (HSI) and muscle and liver lipid contents were significantly decreased in the LHE and MHE groups. The serum levels of LDL-c, total triglyceride (TG) and total cholesterol (TC) also declined in the HE-treated groups. Moreover, the disordered vacuolization and nucleus migration in the liver were alleviated in the MHE and HHE groups, and mRNA expressions of lipogenesis-related genes, such as acc1, fas, srebp1, and ppar gamma decreased. Similarly, the expression of genes related to lipolysis, such as cpt1, atgl, lpl, and ppar alpha, was found to be significantly increased in the MHE and HHE groups compared with the control. Taken together, HE can effectively improve the lipid metabolism and ameliorate the lipid deposition of grass carp and thus may be a promising feed additive in aquaculture.
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