Abstract:
:A feeding trial was conducted to assess the feasibility of supplementing taurine in soy-based diets for juvenile starry flounder Platichthys stellatus. The basal diet (Crude protein 66.5%, crude lipid 8.5%) was supplemented with 0 (control), 0.5%, 1.0%, 1.5%, 2.0% and 2.5% taurine to formulate six test diets. Each diet was fed to 40 juvenile fish (22.25 g) in triplicate tanks (120 L) attached to a sea water circulation-system. Fish were fed twice daily by hand to apparent satiation during the 56-d trial. At the end of the trial, fish were counted and weighed for the analyses of growth performance, diet utilization and survival after a 24-h fast. Blood, intestines and muscles were collected for the analyses of serum oxidation resistance, digestive enzymes and body compostion. Livers were collected from the remaining fish at 4 h post-feeding for metabolic enzymes analyses. The results showed that fish fed diets supplemented with 1.0-2.5% taurine grew from 22.25-22.26 g to 47.88-50.40 g with higher average weight gain (25.62-28.12 vs 23.07 g ), specific growth rate (1.37-1.46 vs 1.27%/d ), feed intake (1.04-1.06 vs 1.00%/d), protein efficiency (2.50-2.61 vs 2.44) and lower feed conversion rate (0.84-0.83 vs 0.89) than the control treatment. Diets supplemented with 1.5-2.5% taurine significantly elevated the activities of pepsin (2.47-2.55 vs 2.22, U mg-1 prot), trypsin of distal intestine(14.55-15.24 vs 11.94, U mg-1 prot), hepatic glucokinase (126.62-129.42 vs 105.56, U mg-1 prot) and fatty acid synthetase (125.56-136.89 vs 108.45, U mg-1 prot). All diets supplemented with taurine increased the activities of lipase (32.23-36.67 vs 29.53, U g-1 prot) and trypsin (35.85-37.89 vs 33.54, U mg-1 prot) of proximal intestine, hepatic aspartate transaminase (736.990-832.38 vs 699.24, U mg-1 prot), alanine aminotransferase (477.40-551.86 vs 373.97, U mg-1 prot) and glycogen synthase (2.16-2.59 vs 1.97, U mg-1 prot), as well as serum superoxide dismutase (4.33-4.59 vs 4.07, U mg-1 prot ) and glutathione peroxidase (42.23-50.25 vs 39.17, mol mg-1 prot). Therefore, taurine supplementation benefits juvenile starry flounder growth, digestion, nutrients metabolism and oxidation resistance. The optimal taurine requirement for starry flounder is 1.75%, and the recommended supplementation level is at least 1.6% for maximizing growth of fish fed a low-fishmeal diet (13.6%).
journal_name
PeerJjournal_title
PeerJauthors
Li P,Bu H,Li B,Sun Y,Wang M,Song Zdoi
10.7717/peerj.10597subject
Has Abstractpub_date
2021-01-11 00:00:00pages
e10597issn
2167-8359pii
10597journal_volume
9pub_type
杂志文章相关文献
PeerJ文献大全abstract:BACKGROUND:Staphylococci are commensals of the mucosal surface and skin of humans and animals, but have been implicated in infections such as otitis externa, pyoderma, urinary tract infections and post-surgical complications. Laboratory records provide useful information to help investigate these infections. Therefore,...
journal_title:PeerJ
pub_type: 杂志文章
doi:10.7717/peerj.3198
更新日期:2017-04-13 00:00:00
abstract::Background. Low use of maternal healthcare services is one of the reasons why maternal mortality is still considerably high among adolescents mothers in India. To increase the utilization of these services, it is necessary to identify factors that affect service utilization. To our knowledge, no national level study i...
journal_title:PeerJ
pub_type: 杂志文章
doi:10.7717/peerj.592
更新日期:2014-11-04 00:00:00
abstract::Neem (Azadirachta indica A. Juss) is one of the most versatile tropical evergreen tree species known in India since the Vedic period (1500 BC-600 BC). Neem tree is a rich source of limonoids, having a wide spectrum of activity against insect pests and microbial pathogens. Complex tetranortriterpenoids such as azadirac...
journal_title:PeerJ
pub_type: 杂志文章
doi:10.7717/peerj.1066
更新日期:2015-08-06 00:00:00
abstract::Estimating the depth of anaesthesia (DoA) in operations has always been a challenging issue due to the underlying complexity of the brain mechanisms. Electroencephalogram (EEG) signals are undoubtedly the most widely used signals for measuring DoA. In this paper, a novel EEG-based index is proposed to evaluate DoA for...
journal_title:PeerJ
pub_type: 杂志文章
doi:10.7717/peerj.4817
更新日期:2018-05-23 00:00:00
abstract::Automatic species classification of birds from their sound is a computational tool of increasing importance in ecology, conservation monitoring and vocal communication studies. To make classification useful in practice, it is crucial to improve its accuracy while ensuring that it can run at big data scales. Many appro...
journal_title:PeerJ
pub_type: 杂志文章
doi:10.7717/peerj.488
更新日期:2014-07-17 00:00:00
abstract::Background. Exercise at moderate intensity may confer neuroprotective benefits in multiple sclerosis (MS), however it has been reported that people with MS (PwMS) exercise less than national guideline recommendations. We aimed to determine predictors of moderate to vigorous exercise among a sample of older Canadians w...
journal_title:PeerJ
pub_type: 杂志文章
doi:10.7717/peerj.1158
更新日期:2015-08-06 00:00:00
abstract::Background. The impact of head and neck cancer (HNC) in long-term survivors differs widely among individuals, and a significant number of them suffer from the negative effects of disease, whereas others report significant positive effect. This systematic review investigated the evidence the implications of treatment f...
journal_title:PeerJ
pub_type: 杂志文章
doi:10.7717/peerj.256
更新日期:2014-02-11 00:00:00
abstract::Stridulatory signals are involved in conspecific interactions between bark beetles (Coleoptera: Curculionidae, Scolytinae). In this study, we compared the qualitative profiles of acoustic signals in three species from the genus Polygraphus Er. Sympatry can be periodically observed in two of them -P. proximus and P. su...
journal_title:PeerJ
pub_type: 杂志文章
doi:10.7717/peerj.8281
更新日期:2020-01-02 00:00:00
abstract::We often expect that investigations of the patterns, causes, and consequences of among-individual variation in a trait of interest will reveal how selective pressures or ecological conditions influence that trait. However, many endocrine traits, such as concentrations of glucocorticoid (GC) hormones, exhibit adaptive ...
journal_title:PeerJ
pub_type: 杂志文章
doi:10.7717/peerj.4398
更新日期:2018-02-21 00:00:00
abstract::The antimicrobial additive triclosan has been used in personal care products widely across the globe for decades. Triclosan resistance has been noted among Vibrio spp., but reports have been anecdotal and the extent of phenotypic triclosan resistance across the Vibrionaceae family has not been established. Here, tricl...
journal_title:PeerJ
pub_type: 杂志文章
doi:10.7717/peerj.5170
更新日期:2018-07-12 00:00:00
abstract::Biodiversity forecasts are important for conservation, management, and evaluating how well current models characterize natural systems. While the number of forecasts for biodiversity is increasing, there is little information available on how well these forecasts work. Most biodiversity forecasts are not evaluated to ...
journal_title:PeerJ
pub_type: 杂志文章
doi:10.7717/peerj.4278
更新日期:2018-02-08 00:00:00
abstract::Vitiligo is a chronic asymptomatic disorder affecting melanocytes from the basal layer of the epidermis which leads to a patchy loss of skin color. Even though it is one of the neglected disease conditions, people suffering from vitiligo are more prone to psychological disorders. As of now, various studies have been d...
journal_title:PeerJ
pub_type: 杂志文章
doi:10.7717/peerj.9119
更新日期:2020-05-21 00:00:00
abstract::Pseudomonas syringae is the most widespread bacterial pathogen in plants. Several strains of P. syringae produce a phytotoxin, coronatine (COR), which acts as a jasmonic acid mimic and inhibits plant defense responses and contributes to disease symptom development. In this study, we found that COR inhibits early defen...
journal_title:PeerJ
pub_type: 杂志文章
doi:10.7717/peerj.34
更新日期:2013-02-12 00:00:00
abstract::The Asian clam, Corbicula fluminea, is a commonly consumed small freshwater bivalve in East Asia. However, available genetic information of this clam is still limited. In this study, the transcriptome of female C. fluminea was sequenced using the Illumina HiSeq 2500 platform. A total of 89,563 unigenes were assembled ...
journal_title:PeerJ
pub_type: 杂志文章
doi:10.7717/peerj.7770
更新日期:2019-10-22 00:00:00
abstract::Hydrolysis of ATP by Na+/K+-ATPase, a P-Type ATPase, catalyzing active Na+ and K+ transport through cellular membranes leads transiently to a phosphorylation of its catalytical α-subunit. Surprisingly, three-dimensional molecular structure analysis of P-type ATPases reveals that binding of ATP to the N-domain connecte...
journal_title:PeerJ
pub_type: 杂志文章
doi:10.7717/peerj.3087
更新日期:2017-03-14 00:00:00
abstract::The eukaryotic polypyrimidine tract binding protein (PTB) serves primarily as a regulator of alternative splicing of messenger RNA, but is also co-opted to other roles such as RNA localisation and translation initiation from internal ribosome entry sites. The neuronal paralogue of PTB (nPTB) is 75% identical in amino ...
journal_title:PeerJ
pub_type: 杂志文章
doi:10.7717/peerj.305
更新日期:2014-03-13 00:00:00
abstract:Background:The circadian clock not only participates in regulating various stages of plant growth, development and metabolism, but confers plant environmental adaptability to stress such as drought. Pseudo-Response Regulators (PRRs) are important component of the central oscillator (the core of circadian clock) and pla...
journal_title:PeerJ
pub_type: 杂志文章
doi:10.7717/peerj.9936
更新日期:2020-09-25 00:00:00
abstract::Language WorkBenches (LWBs) are software engineering tools that help domain experts develop solutions to various classes of problems. Some of these tools focus on non-technical users and provide languages to help organize knowledge while other workbenches provide means to create new programming languages. A key advant...
journal_title:PeerJ
pub_type: 杂志文章
doi:10.7717/peerj.241
更新日期:2014-01-02 00:00:00
abstract::Histone deacetylases (HDACs) are key epigenetic factors in regulating chromatin structure and gene expression in multiple aspects of plant growth, development, and response to abiotic or biotic stresses. Many studies on systematic analysis and molecular function of HDACs in Arabidopsis and rice have been conducted. Ho...
journal_title:PeerJ
pub_type: 杂志文章
doi:10.7717/peerj.8539
更新日期:2020-02-12 00:00:00
abstract::Background. The gram-negative Neisseria is associated with two of the most potent human epidemic diseases: meningococcal meningitis and gonorrhoea. In both cases, disease is caused by bacteria colonizing human mucosal membrane surfaces. Overall, the genus shows great diversity and genetic variation mainly due to its a...
journal_title:PeerJ
pub_type: 杂志文章
doi:10.7717/peerj.1698
更新日期:2016-03-17 00:00:00
abstract:Background:Self-efficacy and enjoyment are two main constructs proposed within many motivational theories in any human endeavor, sport and physical activity included. Methods:The purpose of this study was to examine the factor structure of two pictorial scales measuring self-efficacy and enjoyment levels in a sample o...
journal_title:PeerJ
pub_type: 杂志文章
doi:10.7717/peerj.7402
更新日期:2019-07-29 00:00:00
abstract::The spatial-temporal evolution of land use and land cover (LULC) and its multi-scale impact on the water environment is becoming highly significant in the LULC research field. The current research results show that the more significant scale impact on LULC and water quality in the whole basin and the riparian buffer s...
journal_title:PeerJ
pub_type: 杂志文章
doi:10.7717/peerj.7283
更新日期:2019-07-15 00:00:00
abstract:Background:The problem of access to medical information, particularly in low-income countries, has been under discussion for many years. Although a number of developments have occurred in the last decade (e.g., the open access (OA) movement and the website Sci-Hub), everyone agrees that these difficulties still persist...
journal_title:PeerJ
pub_type: 杂志文章
doi:10.7717/peerj.7850
更新日期:2019-10-30 00:00:00
abstract:BACKGROUND:Several recent studies have shown that total scores on depressive symptom measures in a general population approximate an exponential pattern except for the lower end of the distribution. Furthermore, we confirmed that the exponential pattern is present for the individual item responses on the Center for Epi...
journal_title:PeerJ
pub_type: 杂志文章
doi:10.7717/peerj.2987
更新日期:2017-02-09 00:00:00
abstract:Background:The body of literature regarding the associations between physical activity and psychological problems lacks consensus. Moreover, the role of gender has been scarcely investigated. The present study sought to fill the gap in the data by examining the associations, if any, between moderate-to-vigorous physica...
journal_title:PeerJ
pub_type: 杂志文章
doi:10.7717/peerj.8775
更新日期:2020-03-25 00:00:00
abstract::Barnacles and their allies (Thecostraca) are a biologically diverse, monophyletic crustacean group, which includes both intensely studied taxa, such as the acorn and stalked barnacles, as well as cryptic taxa, for example, Facetotecta. Recent efforts have clarified phylogenetic relationships in many different parts of...
journal_title:PeerJ
pub_type: 杂志文章
doi:10.7717/peerj.7387
更新日期:2019-08-16 00:00:00
abstract::Wildlife biologists often use grid-based designs to sample animals and generate abundance estimates. Although sampling in grids is theoretically sound, in application, the method can be logistically difficult and expensive when sampling elusive species inhabiting extensive areas. These factors make it challenging to s...
journal_title:PeerJ
pub_type: 杂志文章
doi:10.7717/peerj.227
更新日期:2013-12-17 00:00:00
abstract::Acoustic recording has been recognized as a valuable tool for non-intrusive monitoring of the marine environment, complementing traditional visual surveys. Acoustic surveys conducted on coral ecosystems have so far been restricted to barrier reefs and to shallow depths (10-30 m). Since they may provide refuge for cora...
journal_title:PeerJ
pub_type: 杂志文章
doi:10.7717/peerj.4019
更新日期:2017-11-14 00:00:00
abstract::The blacklegged tick Ixodes scapularis is widely distributed in the United States and transmits multiple pathogens to humans, wildlife and domestic animals. Recently, several novel viruses in the family Bunyaviridae (South Bay virus (SBV) and Blacklegged tick phlebovirus (BTPV)) were identified infecting female I. sca...
journal_title:PeerJ
pub_type: 杂志文章
doi:10.7717/peerj.2324
更新日期:2016-08-11 00:00:00
abstract:Background:In arid environments, plant primary productivity is generally low and highly variable both spatially and temporally. Resources are not evenly distributed in space and time (e.g., soil nutrients, water), and depend on global (El Niño/ Southern Oscillation) and local climate parameters. The launch of the Senti...
journal_title:PeerJ
pub_type: 杂志文章
doi:10.7717/peerj.9209
更新日期:2020-05-26 00:00:00