Effects of salinity training on growth performance, osmotic regulation, and pathogen resistance of post-larval Litopenaeus vannamei

doi:10.1016/j.aquaculture.2022.738770

IOCAS-IR > 实验海洋生物学重点实验室

	Effects of salinity training on growth performance, osmotic regulation, and pathogen resistance of post-larval Litopenaeus vannamei
	Liu, Yuan 1,4; Wang, Baojie 1; Jiang, Keyong 1; Zhao, Zhiqun 1; Liu, Mei 3; Wang, Lei 1,2,4
	2023-01-15
发表期刊	AQUACULTURE
ISSN	0044-8486
卷号	562 页码:10
通讯作者	Liu, Mei([email protected]) ; Wang, Lei([email protected])
摘要	We cultured post-larval shrimp in four salinity treatment groups (SAL20 (control) = 20 ppt (parts per thousand), SAL10 = 10 ppt, SAL30 = 30 ppt, and SAL40 = 40 ppt) for 20 days (restriction stage) and then transferred them to the control salinity environment (20 ppt) for 20 days (compensation stage). The SAL40 group exhibited an over-compensation growth effect in body length and weight, and the SAL30 group showed a full-compensation growth effect in weight. During the salinity restriction stage, shrimp in the SAL30 and SAL40 groups showed decreased activities of digestive enzymes and increased activities of osmoregulation enzymes; the opposite trends occurred in these groups during the compensation phase. This result suggests that salinity restriction increased energy consumption required for osmoregulation and thus the shrimp compensated by increasing food utiliza-tion. From the restriction stage to the compensation stage, the gene expression levels of tor, s6k, and 4e-bp first increased and then decreased. Results also suggested that the mechanistic target of the rapamycin signaling pathway may regulate growth in response to changes in the salinity restriction and compensation stages. Finally, we conducted Vibrio parahaemolyticus E1 challenge experiments using the different salinity training groups and found that the SAL30 group had the greatest ability to fight infection. In conclusion, our data suggest that increasing the culture salinity from 20 to 30 ppt for a 20-day restriction stage and then decreasing it to 20 ppt for a 20-day compensation stage would not affect survival rate or final weight and may improve disease resistance and uniformity.
关键词	Compensatory growth mTOR signaling pathway Salinity changes Shrimp nursery farming
DOI	10.1016/j.aquaculture.2022.738770
收录类别	SCI
语种	英语
资助项目	National Key Research and Development Program of China[2019YFD0900401]; Yellow River Delta Industry Leading Talent Project
WOS研究方向	Fisheries ; Marine & Freshwater Biology
WOS类目	Fisheries ; Marine & Freshwater Biology
WOS记录号	WOS:000863313000007
出版者	ELSEVIER
引用统计	被引频次：4[WOS] [WOS记录] [WOS相关记录]
文献类型	期刊论文
条目标识符	http://ir.qdio.ac.cn/handle/337002/180724
专题	实验海洋生物学重点实验室
通讯作者	Liu, Mei; Wang, Lei
作者单位	1.Chinese Acad Sci, Inst Oceanol, Ctr Ocean Mega Sci, CAS & Shandong Prov Key Lab Expt Marine Biol, Qingdao 266071, Peoples R China 2.Natl Lab Marine Sci & Technol, Lab Marine Biol & Biotechnol, Qingdao 266237, Peoples R China 3.Marine Sci Res Inst Shandong Prov, Qingdao Aquat Organisms Qual Evaluat & Utilizat En, Qingdao 266104, Peoples R China 4.Univ Chinese Acad Sci, Beijing 100049, Peoples R China
第一作者单位	中国科学院海洋研究所
通讯作者单位	中国科学院海洋研究所
推荐引用方式 GB/T 7714	Liu, Yuan,Wang, Baojie,Jiang, Keyong,et al. Effects of salinity training on growth performance, osmotic regulation, and pathogen resistance of post-larval Litopenaeus vannamei[J]. AQUACULTURE,2023,562:10.
APA	Liu, Yuan,Wang, Baojie,Jiang, Keyong,Zhao, Zhiqun,Liu, Mei,&Wang, Lei.(2023).Effects of salinity training on growth performance, osmotic regulation, and pathogen resistance of post-larval Litopenaeus vannamei.AQUACULTURE,562,10.
MLA	Liu, Yuan,et al."Effects of salinity training on growth performance, osmotic regulation, and pathogen resistance of post-larval Litopenaeus vannamei".AQUACULTURE 562(2023):10.

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