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

doi:10.1016/j.aquaculture.2022.738770

CORC > 海洋研究所 > 中国科学院海洋研究所 > 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 4; Jiang, Keyong 4; Zhao, Zhiqun 4; Liu, Mei 2; Wang, Lei 1,3,4
刊名	AQUACULTURE
	2023-01-15
卷号	562 页码:10
关键词	Compensatory growth mTOR signaling pathway Salinity changes Shrimp nursery farming
ISSN号	0044-8486
DOI	10.1016/j.aquaculture.2022.738770
通讯作者	Liu, Mei(mliu_msrisd@126.com) ; Wang, Lei(leiwang@qdio.ac.cn)
英文摘要	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.
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
语种	英语
出版者	ELSEVIER
WOS记录号	WOS:000863313000007
内容类型	期刊论文
源URL	[http://ir.qdio.ac.cn/handle/337002/180723]
专题	海洋研究所_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.Univ Chinese Acad Sci, Beijing 100049, Peoples R China 2.Marine Sci Res Inst Shandong Prov, Qingdao Aquat Organisms Qual Evaluat & Utilizat En, Qingdao 266104, Peoples R China 3.Natl Lab Marine Sci & Technol, Lab Marine Biol & Biotechnol, Qingdao 266237, Peoples R China 4.Chinese Acad Sci, Inst Oceanol, Ctr Ocean Mega Sci, CAS & Shandong Prov Key Lab Expt Marine Biol, Qingdao 266071, Peoples R China
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.