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Dietary Different Replacement Levels of Fishmeal by Fish Silage Could Influence Growth of Litopenaeus vannamei by Regulating mTOR at Transcriptional Level
Shao, Jianchun1,2; Wang, Lei2,3; Shao, Xuqing4; Liu, Mei2,3
2020-05-06
Source PublicationFRONTIERS IN PHYSIOLOGY
ISSN1664-042X
Volume11Pages:9
Corresponding AuthorShao, Jianchun(shaojianchun16@mails.ucas.ac.cn) ; Liu, Mei(liumei@qdio.ac.cn)
AbstractFish silage (FS) has been confirmed as a high-quality feed ingredient because of its balanced nutrition, low cost, and environmental friendliness. In the present study, we evaluated the performance of replacing fishmeal by FS in the diet of white shrimp, Litopenaeus vannamei. Five isonitrogenous (410 g kg(-1)) and isolipidic (75 g kg(-1)) diets were formulated with replacement of fishmeal by 0% (FM), 25% (FS25%), 50% (FS50%), 75% (FS75%), and 100% (FS100%) FS. After an 8-week trial, shrimps fed low FS diets (FM and FS25%) had significantly higher final weight (FW), weight gain (WG), and specific growth ratio (SGR) (P < 0.05). No significant differences were found in body composition and most antioxidant enzyme activities of all groups (P > 0.05). Compared to high FS groups (FS75% and FS100%), low FS replacement levels (0 and 25%) had enhanced trypsin activity. And trypsin transcriptional level presented a similar trend with trypsin activity. In terms of intestinal histopathology, no obvious histological damage was observed in the intestine of all groups. tor and s6k of low replacement level groups (FM and FS25%) were significantly upregulated (P < 0.05), which indicated activation of mammalian target of rapamycin (mTOR) signaling pathway in low FS groups at transcriptional level. The enhanced performances of growth and mTOR signaling pathway in low FS groups (FM and FS25%) provided us some insights into the regulation mechanism of nutrient signal on growth. Based on the above, dietary FS could influence the growth of shrimp by regulating mTOR at the transcriptional level, and FS is a potential substitute of fishmeal in shrimp feed.
KeywordLitopenaeus vannamei fish silage growth performance intestinal histopathology mammalian target of rapamycin signaling pathway
DOI10.3389/fphys.2020.00359
Indexed BySCI
Language英语
Funding ProjectChina Agriculture Research System[CARS-47] ; National Natural Science Foundation of China[41406151] ; Marine S&T Fund of Shandong Province for Pilot National Laboratory for Marine Science and Technology (Qingdao)[2018SDKJ0502-2]
WOS Research AreaPhysiology
WOS SubjectPhysiology
WOS IDWOS:000536700300001
PublisherFRONTIERS MEDIA SA
Citation statistics
Cited Times:1[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.qdio.ac.cn/handle/337002/167627
Collection实验海洋生物学重点实验室
Corresponding AuthorShao, Jianchun; Liu, Mei
Affiliation1.Fujian Agr & Forestry Univ, Inst Oceanol, Key Lab Marine Biotechnol Fujian Prov, Fuzhou, Peoples R China
2.Qingdao Natl Lab Marine Sci & Technol, Lab Marine Biol & Biotechnol, Qingdao, Peoples R China
3.Chinese Acad Sci, CAS Key Lab Expt Marine Biol, Inst Oceanol, Qingdao, Peoples R China
4.Shandong Cigna Detect Technol Co Ltd, Qingdao, Peoples R China
First Author AffilicationInstitute of Oceanology, Chinese Academy of Sciences
Corresponding Author AffilicationInstitute of Oceanology, Chinese Academy of Sciences
Recommended Citation
GB/T 7714
Shao, Jianchun,Wang, Lei,Shao, Xuqing,et al. Dietary Different Replacement Levels of Fishmeal by Fish Silage Could Influence Growth of Litopenaeus vannamei by Regulating mTOR at Transcriptional Level[J]. FRONTIERS IN PHYSIOLOGY,2020,11:9.
APA Shao, Jianchun,Wang, Lei,Shao, Xuqing,&Liu, Mei.(2020).Dietary Different Replacement Levels of Fishmeal by Fish Silage Could Influence Growth of Litopenaeus vannamei by Regulating mTOR at Transcriptional Level.FRONTIERS IN PHYSIOLOGY,11,9.
MLA Shao, Jianchun,et al."Dietary Different Replacement Levels of Fishmeal by Fish Silage Could Influence Growth of Litopenaeus vannamei by Regulating mTOR at Transcriptional Level".FRONTIERS IN PHYSIOLOGY 11(2020):9.
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