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Toxic, physiological, histomorphological, growth performance and antiparasitic effects of copper sulphate in fish aquaculture Aquaculture (IF 3.224) Pub Date : 2021-01-06 Marcos Tavares-Dias
This paper provides the current state of knowledge available from the literature regarding the use of copper sulphate (CuSO4) in culture of freshwater and marine fish as related to toxicity, growth performance, physiology, immunity, histomorphology and antiparasitic treatment. From this review, I have assessed and discussed all of these factors, as well as the potential strategies available for use
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Establishment of recombinase polymerase amplification technology for detecting Viral Hemorrhagic Septicemia Virus (VHSV) in cultured aquatic animals Aquaculture (IF 3.224) Pub Date : 2021-01-04 Yin Weili; Huang Wei; Liu Xiaojing; Ni Yangfan; Yang Bai; Shi Qing; Zhao Weiduo; Sun Tao
We established a recombinase polymerase amplification (RPA) assay for the rapid detection of viral hemorrhagic septicemia virus (VHSV) using primers designed to the N gene in this species. Optimization experiments showed that the optimal amplification temperature of the RPA assay was 37 °C and that the reaction could be completed within only 15 min. Specificity tests showed that the RPA assay did not
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Absorption and depletion of dietary administered praziquantel in greater amberjack, Seriola dumerili Aquaculture (IF 3.224) Pub Date : 2021-01-14 Dimitra Kogiannou; Chrysanthi Nikoloudaki; George Rigos
The absorption and depletion of dietary administered praziquantel (PZQ) were explored in greater amberjack, Seriola dumerili, a promising farmed fish species in the Mediterranean area and elsewhere. Greater amberjack weighing 84 g were fed once daily for 5 days on diets containing either 1.5 or 3.0 g/kg of PZQ to deliver dose rates of 30 or 60 mg/kg fish, respectively. During the first day, plasma
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Mealworm larvae meal in diets for meagre juveniles: Growth, nutrient digestibility and digestive enzymes activity Aquaculture (IF 3.224) Pub Date : 2021-01-07 Filipe Coutinho; Carolina Castro; Inês Guerreiro; Fábio Rangel; Ana Couto; Cláudia R. Serra; Helena Peres; Pedro Pousão-Ferreira; Mateusz Rawski; Aires Oliva-Teles; Paula Enes
This study aimed to evaluate the effect of including 10%, 20% and 30% of mealworm (Tenebrio molitor, TM) larvae meal (diets TM10, TM20 and TM30, respectively), replacing 25%, 50% and 75% of fishmeal (FM) in a isoproteic (50%) and isolipidic (19%) FM-based diet (CTR) for meagre (Argyrosomus regius). The diets were fed for 9 weeks to triplicate groups of fish with 18.0 g initial body weight and results
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Comparative study on growth performance and morphological characteristics of the meio- and mito-gynogenesis olive flounder (Paralichthys olivaceus) Aquaculture (IF 3.224) Pub Date : 2021-01-20 Qiaowan Wu; Zhihao Wu; Lijuan Wang; Yunliang Lu; Weijia Bi; Dongdong Zhou; Ling Wang; Zhuangzhuang Peng; Feng You
Chromosome manipulation, such as gynogenetic induction, is an effective method in fish to quickly obtain high inbreeding coefficient which is useful for genetic breeding. Based on different induction protocols, there are two kinds of gynogenesis, meio-gynogenesis (MEG) and mito-gynogenesis (MIG), which retain high level of heterozygosity or theoretically homozygous. Until now, little is known about
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Linolenic acid improves growth performance and immune status of Penaeus vannamei infected by Enterocytozoon hepatopenaei Aquaculture (IF 3.224) Pub Date : 2021-01-20 Mingxiao Ning; Jingxiu Bi; Weifeng Fan; Xiaojun Xie; Yanlan Huang; Wei Gu; Wen Wang; Yi Qiao; Ge Jiang; Hui Shen; Qingguo Meng
Hepatopancreatic microsporidiosis (HPM) caused by Enterocytozoon hepatopenaei (EHP) leads to significant growth retardation of Penaeus vannamei and is increasing the economic losses in the shrimp aquaculture. Our previous metabolomic results showed that 24 metabolites including linolenic acid (LNA) significantly decreased in EHP-infected shrimp compared with healthy groups. This study aims to evaluate
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Reduced fatty acid β-oxidation improves glucose catabolism and liver health in Nile tilapia (Oreochromis niloticus) juveniles fed a high-starch diet Aquaculture (IF 3.224) Pub Date : 2021-01-20 Ling-Yu Li; Yue Wang; Samwel Mchele Limbu; Jia-Min Li; Fang Qiao; Li-Qiao Chen; Mei-Ling Zhang; Zhen-Yu Du
Fish are poor users of dietary carbohydrates and often display prolonged hyperglycemia and fat deposition after feeding high digestible carbohydrate diets. Recently, fatty acid β-oxidation (FAO) inhibition has been reported to increase glucose oxidation in fish. Therefore, this study tested the assumption that the inhibition of FAO with mildronate (MD, a carnitine synthesis inhibitor) might also increase
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Nutrients regulate gene expression levels of neuropeptide Y, melanin-concentrating hormone 1, and cholecystokinin in yellowtail (Seriola quinqueradiata) Aquaculture (IF 3.224) Pub Date : 2021-01-20 Haruhisa Fukada; Noriko Hosomi; Haruka Morino; Toshiro Masumoto
Neuropeptide Y (NPY), melanin-concentrating hormone 1 (MCH1), and cholecystokinin (CCK) are appetite-regulatory hormones. To understand the regulation of npy, mch1, and cck mRNA expression by dietary nutrients, the following two experiments were performed in the marine, carnivorous yellowtail (Seriola quinqueradiata). Juvenile yellowtails were fed one of four different diets for one week in Experiment
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Impact of nucleotide enriched diets on the production of gilthead seabream, Sparus aurata fingerlings by modulation of liver mitochondrial enzyme activitity, antioxidant status, immune gene expression, and gut microbial ecology Aquaculture (IF 3.224) Pub Date : 2021-01-20 A.M. El-Nokrashy; R.A. El-Banna; B.M. Edrise; M.M. Abdel-Rahim; M. Jover-Cerdá; A. Tomás-Vidal; A. Prince; S.J. Davies; E.R. El-Haroun; A.M.A.-S. Goda
The objective of this study was to evaluate the effect of fish meal replacement with a mixture of plant, and animal protein supplemented with a commercial nucleotide NucleoforceFish™, on growth, feed utilization, whole-body composition, biometric indices; liver mitochondrial enzyme activities, selected gene expression and influence on the gut microbiome of gilthead seabream, Sparus aurata. Six hundred
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Growth and feed utilisation of Nile tilapia (Oreochromis niloticus) fed different protein levels in a clear-water or biofloc-RAS system Aquaculture (IF 3.224) Pub Date : 2021-01-20 Nhi Nguyen Huu Yen; Lan Trinh Thi; Kartik Baruah; Torbjörn Lundh; Anders Kiessling
A 9-week feeding experiment was conducted to evaluate different dietary protein levels in juvenile Nile tilapia reared in either a biofloc (Bio-RAS) or clear water recirculating aquaculture system (CW-RAS). The fish were fed four isoenergetic (19 MJ kg−1) diets with graded levels of a fixed mixture of three protein sources (animal, plant, and microbial origin) and containing 23, 27, 31 or 35% crude
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Concurrent infections of Aeromonas veronii and Vibrio cholerae in koi carp (Cyprinus carpio var. koi) Aquaculture (IF 3.224) Pub Date : 2021-01-20 Zhuoran Han; Jingfeng Sun; Boyun Jiang; Xiucai Hu; Aijun Lv; Limei Chen; Yongjun Guo
Recently, diseases of koi carp Cyprinus carpio var. koi have resulted in the mass mortality of stock at a koi carp breeding farm in Tianjin. The diseased fish exhibited obvious symptoms including skin ulceration, hemorrhages on body surface, and abdominal and intestinal dropsy. Seven Gram-negative bacterial isolates were isolated from the liver and spleen of diseased koi carp. Based on the phenotypic
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Selection of marine fish for integrated multi-trophic aquaponic production in the Mediterranean area using DEXi multi-criteria analysis Aquaculture (IF 3.224) Pub Date : 2021-01-20 Lorenzo Rossi; Carlo Bibbiani; Juan Francisco Fierro-Sañudo; Chingoileima Maibam; Luca Incrocci; Alberto Pardossi; Baldassare Fronte
Producing food according to the sustainability and “circular economy” principles is considered a strategic goal by several world Institutions. Integrated Multi-Trophic Aquaculture (IMTA) responds to these criteria and stemming from it, the “Self-sufficient Integrated Multitrophic AquaPonic” (SIMTAP) aims to drastically reduce production inputs and waste outputs while maximizing the total food production
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Growth, physiological, biochemical, and molecular responses of Pacific white shrimp Litopenaeus vannamei fed different levels of dietary selenium Aquaculture (IF 3.224) Pub Date : 2021-01-20 Qiuran Yu; Zhenqiang Fu; Maoxian Huang; Chang Xu; Xiaodan Wang; Jian G. Qin; Liqiao Chen; Fenglu Han; Erchao Li
This study investigated the effects of different levels of dietary selenium (Se) on the growth, antioxidant capacity, hepatopancreas health, and transcriptional-level responses of Litopenaeus vannamei. Sodium selenite was added to basal diet formulations at 0, 0.2, 0.4, and 0.8 mg/kg, with final Se concentrations of 0.13, 0.20, 0.45, and 0.81 mg/kg, respectively. Shrimp were fed the experimental diets
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Effect of dietary methionine on growth performance, lipid metabolism and antioxidant capacity of large yellow croaker (Larimichthys crocea) fed with high lipid diets Aquaculture (IF 3.224) Pub Date : 2021-01-19 Jiamin Li; Wenxuan Xu; Wencong Lai; Adong Kong; Zhou Zhang; Yuning Pang; Zhen Wang; Jikang Shentu; Xiongfei Wu; Kangsen Mai; Qinghui Ai
A 10-week feeding trial was conducted to evaluate the effect of dietary methionine (MET) on the growth performance, lipid metabolism and liver antioxidant function in juvenile large yellow croaker (Larimichthys crocea) fed with high lipid diets (HLDs). Large yellow croaker with an initial average weight of 8.59 g, were fed with basic HLD (lipid level at 18%, HL), basic HLD supplemented with 0.6% MET
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Addition of hydrolysed porcine mucosa to low-fishmeal feed improves intestinal morphology and the expressions of intestinal amino acids and small peptide transporters in hybrid groupers (Epinephelus fuscoguttatus ♀ × E. lanceolatus ♂) Aquaculture (IF 3.224) Pub Date : 2021-01-19 Xuanyi Yang; Guanghui Wang; Xumin Zhao; Xiaohui Dong; Shuyan Chi; Beiping Tan
Aquaculture routinely uses fishmeal (FM) as feed, but its increasing cost has prompted the search for alternative protein sources. This study conducted an 8-week feeding trial to evaluate the effects of adding hydrolysed porcine mucosa (HPM) to low-FM feed on the growth performance, intestinal morphology, and expressions of intestinal amino acids and small peptide transporters in hybrid groupers (Epinephelus
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To pray in four directions: Understanding Vietnamese farmers' shrimp health management practices Aquaculture (IF 3.224) Pub Date : 2021-01-19 Kim Chi Tran; Anders Dalsgaard; Thi Van Phan; Britt Pinkowski Tersbøl
In northen Vietnam, shrimp farming has in several provinces changed from extensive to intensive production. This change has brought a number of socio-cultural, economic and environmental challenges, including disease outbreaks and an increase in the application of antimicrobials and chemical compounds to prevent and treat diseases. This qualitative study sought to explore shrimp farmers' practices
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Beneficial effects of dietary mulberry leaf along with multi-enzyme premix on the growth, immune response and disease resistance of golden pompano Trachinotus ovatus Aquaculture (IF 3.224) Pub Date : 2021-01-19 Lijun Ning; Liuling Gao; Wei Zhou; Sha Liu; Xiaoyang Chen; Qing Pan
Mulberry leaf, as a commercially important woody plant medicine or food in China, has been used as feed additive on livestock and poultry due to its excellent pharmacological, security and high value in economy. The present working hypothesis is that dietary mulberry leaf addition will also benefit to fish with its wide-spectrum virtues. To this end, a feeding experiment was conducted to evaluate the
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The pathways influence of agricultural expansion on water quality of fish farming in Ilha Solteira reservoir, São Paulo, Brazil Aquaculture (IF 3.224) Pub Date : 2021-01-19 Jorge Laço Portinho; Ana Carolina Campos Gomes; Andrea Koga-Vicente; Fernanda Cristina Carvalho Milani; Rodrigo Bueno Pentean; Celso Vainer Manzatto; Luciana Spinelli-Araujo; Luiz Eduardo Vicente
It is widely accepted that fish farms (FF) have important contribution to input of nutrients into water, however fundamental knowledge regarding the influence of land use and land cover (LULC) on the water quality of fish farms is still lacking. The aim of this study was to assess the linkages between the LULC types and the water quality parameters in FFs. Three specific objectives were set: (1) to
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Edwardsiella piscicida HigB: A type II toxin that is essential to oxidative resistance, biofilm formation, serum survival, intracellular propagation, and host infection Aquaculture (IF 3.224) Pub Date : 2021-01-19 Jinhong Xie; Qianyun Zhao; Huiqin Huang; Zaiguang Fang; Yonghua Hu
Edwardsiella piscicida (formerly included in E. tarda) is the leading pathogen threatening worldwide fresh and seawater aquaculture industries and has been considered as a model organism for studying intracellular and systemic infections. Toxin-antitoxin (TA) systems are omnipresent in bacteria and participate widely in stress responses, biofilm formation and pathogenicity. However, the roles of TA
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Protective effectiveness of feeding phage cocktails in controlling Vibrio harveyi infection of turbot Scophthalmus maximus Aquaculture (IF 3.224) Pub Date : 2021-01-19 Huijing Cui; Cong Cong; Lili Wang; Xiaoyu Li; Jibin Li; Huan Yang; Shuying Li; Yongping Xu
Vibrio harveyi can cause infections and diseases in a variety of marine vertebrates and invertebrates, which is very harmful to the aquaculture industry. In this study, two phages were isolated and named VB_VhaP_Vh-5 (referred to as PVHp5) and VB_VhaM_VH-8 (referred to as PVHp8). Morphological analysis showed that PVHp5 belonged to Autographiviridae phage, while PVHp8 belonged to Myoviridae family
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Water salinity and postprandial effects on transcription of peptide and amino acid transporters in the kidney of Mozambique tilapia (Oreochromis mossambicus) Aquaculture (IF 3.224) Pub Date : 2021-01-19 Pazit Con; Tali Nitzan; Tatiana Slosman; Avner Cnaani
Preservation of amino acids is highly important, as these are vital nutrients that support many physiological and biochemical processes. During fish osmoregulation, the kidney reabsorbs amino acids and short peptides that are filtered from the blood into the nephron. However, little is known about reabsorption systems in teleost kidney. To identify transporters involved in this process, we examined
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Characterization of digestive enzymes during early ontogeny of white Snook (Centropomus viridis). Aquaculture (IF 3.224) Pub Date : 2021-01-19 Iris Adriana Hernández-López; Leonardo Ibarra-Castro; Carlos Alfonso Álvarez-González; Juan Manuel Martínez-Brown; Claudia Ivette Maytorena-Verdugo; Emyr Saúl Peña-Marín
The white snook (Centropomus viridis) is a species with great aquaculture potential, therefore, the present study aims two objectives; 1) to characterize digestive enzymatic activity during larval development and; 2) characterize the diversity and functionality of digestive enzymes in an early juvenile stage of C. viridis. On first feeding, larvae were 2.75 ± 0.09 mm total length and grew to 24.35 ± 4
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Autophagy promotes innate defense against Aeromonas hydrophila in grass carp (Ctenopharyngodon idella) monocytes/macrophages Aquaculture (IF 3.224) Pub Date : 2021-01-19 Licheng Yin; Wenting Xu; Xuelian Liu; Yueyue Wang; Pei Ge; Xinyan Wang; Hong Zhou
Aeromonas hydrophila (A. hydrophila) is a gram-negative opportunistic pathogen widely distributed in aquatic environment, which can infect human, birds, amphibians, reptiles and fishes. However, the interaction between A. hydrophila and host cells has not been well characterized. In the present study, we investigated the role of autophagy in grass carp (Ctenopharyngodon idella) monocytes/macrophages
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The effects of dietary of supplementation mistletoe (Viscum album) extract on the growth performance, antioxidant, and innate, immune responses of rainbow trout (Oncorhynchus mykiss) Aquaculture (IF 3.224) Pub Date : 2021-01-18 Morteza Yousefi; Mehdi Naderi Farsani; Hamed Ghafarifarsani; Seyed Hossein Hoseinifar; Hien Van Doan
In the present study, rainbow trout fingerlings, Oncorhynchus mykiss, were fed diets supplemented with 0% (C), 0.5 (T1), 1.5 (T2), 2.5 (T3), and 4% (T4) mistletoe extract (ME), Viscum album over eight weeks. At the end of feeding trial, growth performance, serum antioxidant and innate immune responses, and serum bactericidal activity against Aeromonas hydrophila were evaluated. According to results
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Dietary glycerol inclusion decreases growth performance and nitrogen retention efficiency in rainbow trout (Oncorhynchus mykiss) Aquaculture (IF 3.224) Pub Date : 2021-01-18 Leonardo Magnoni; Paulo Rema; Francisca Silva-Brito; João Rito; Mariana Palma; Rodrigo Ozorio; Stéphane Panserat; Ivan Viegas
Glycerol is an inexpensive source of dietary energy, although its inclusion in compound feeds has been barely investigated in fish. The effects of dietary refined glycerol inclusion on growth performance, nitrogen and energy balance, as well as its digestibility and intestinal digestive enzyme activities was studied in rainbow trout. Fish (initial BW 20.2 ± 0.1 g, mean ± SE) were divided into nine
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Developmental stages, incubation temperature, and in vivo traceability of primordial germ cell in an important aquaculture species Piaractus mesopotamicus Aquaculture (IF 3.224) Pub Date : 2021-01-18 Geovanna Carla Zacheo Coelho; Dilberto Ribeiro Arashiro; Tamiris Disselli; Matheus Pereira-Santos; Tatiana María Mira-López; Paulo Sergio Monzani; José Augusto Senhorini; Takafumi Fujimoto; George Shigueki Yasui
This study aims to describe the early development of Piaractus mesopotamicus in detail at 22 °C, 26 °C, and 30 °C and describe primordial germ cell migration in vivo by using artificial GFP-nos1 3’UTR mRNA for future application in surrogate technology. The highest hatching rate was observed at 26 °C with 52.9 ± 18.9%, which was considered the best incubation temperature. At 22 °C, the embryos survived
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Histological and molecular characterization of Edwardsiella tarda infection in Siamese crocodile (Crocodylus siamensis) hatchlings Aquaculture (IF 3.224) Pub Date : 2021-01-10 Muhammad Nafees Ur Rehman; Yu Wang; Jiwen Pan; Yu Han; Nuo Yang; Xin Wang; Lixia Fan; Qian Li; Feifei Yin; Peng Wang; Weixin Zeng; Ting Zheng; Jifeng Zeng; Guiying Guo; Jiping Zheng
Edwardsiellosis is an important bacterial disease of fish, birds, reptiles and mammals. This study was conducted to describe the histopathology and etiology of the disease caused by Edwardsiella tarda in farmed hatchling Siamese crocodiles (Crocodylus siamensis) in Hainan, China. The main macroscopic lesions were congestion and hemorrhage of various internal organs, pericardial fluid and subcutaneous
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Benefits of Agricultural R&D International Spillovers: The case of aquaculture Aquaculture (IF 3.224) Pub Date : 2020-12-24 Henry W. Kinnucan; Ly Nguyen; Abhipsita Das
International spillovers from research and development (R&D) arise when technology developed in one geopolitical region is adopted by another region, resulting in a divergence between social and private benefits from the technology. Applying this concept to aquacultural R&D, study results based on a partial equilibrium model of the global fish market suggest the magnitude of spillovers depends crucially
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A review of the factors affecting tilapia aquaculture production in Southern Africa Aquaculture (IF 3.224) Pub Date : 2021-01-18 Ngonidzashe A.G. Moyo; Mmaditshaba M. Rapatsa
Tilapia production in most Southern African countries has remained low despite the high potential that exists. This sector is particularly important for inland countries. Government and donor driven programmes have largely failed to boost tilapia production in the last four decades in most Southern African countries. However, Zambia has experienced significant growth in tilapia production in recent
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Generating aptamers for specific recognition against soft-shelled turtle iridovirus infection Aquaculture (IF 3.224) Pub Date : 2021-01-06 Qing Yu; Mingzhu Liu; Mengmeng Li; Meizhen Su; Rui Xiao; Guixiang Tong; Xianling Qin; Pengfei Li
Soft-shelled turtle iridovirus (STIV) causes devastating virus disease in farmed soft-shelled turtles (Trionyx sinensis). Aptamers with remarkably high specificity and affinity have been widely applied in diseases diagnosis and therapies. In this study, single-stranded DNA (ssDNA) aptamers were generated against STIV-infected Fathead minnow (FHM) cells via Cell-SELEX (Cell based-Systematic Evolution
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Enrichment effects of fermented by-product of Shochu distillery on Brachionus plicatilis sp. rotifer and larviculture performance in Japanese flounder (Paralichthys olivaceus) Aquaculture (IF 3.224) Pub Date : 2021-01-06 Tran Nguyen Duy Khoa; Viliame Waqalevu; Akinobu Honda; Hideaki Matsui; Nguyen Xuan Truong; Kenzo Sakaguchi; Hirofumi Kawaji; Manabu Ishikawa; Kazuhiro Shiozaki; Tomonari Kotani
The effective use of distillery by-products of the shochu sweet potato has long been considered as a rich source of protein, fiber, amino acids, fatty acids, probiotics with a great potential as a functional feed for animals. This study applied fermented by-product of Shochu distillery (FBPSD) and salmon roe emulsion oil for rotifer enrichment to evaluate its effects on the: (i) nutritional composition
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Integrating antioxidant responses and oxidative stress of ornamental discus (Symphysodon spp.) to decreased temperatures: Evidence for species-specific thermal resistance Aquaculture (IF 3.224) Pub Date : 2021-01-12 Shi-Rong Jin; Lei Wang; Xin-Xin Li; Bin Wen; Jian-Zhong Gao; Zai-Zhong Chen
Discus (Symphysodon spp.) is among the most popular ornamental fish for warm-water and species that tolerates low temperature should be preferred by discus farmers due to costs in heating aquaria. Here, we compared the antioxidant responses and oxidative stress to decreased temperatures in gills of two discus species (S. haraldi and S. aequifasciatus), by employing a continuous temperature change program
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Identification of plumbagin as an effective chemotherapeutic agent for treatment of Gyrodactylus infections Aquaculture (IF 3.224) Pub Date : 2021-01-11 Xiao Tu; Chenxi Duan; Siwei Wu; Shengli Fu; Jianmin Ye
Monogenean parasites are responsible for severe economic losses of both freshwater and marine aquaculture industries. Current chemotherapeutic treatments are consuming, expensive, and harmful to water quality and human health. Medicinal plants are a reliable source of alternative anthelmintic agents. In the pursuit of novel anti-monogenean drugs, in vivo anthelminthic efficacy of 26 selected phytochemical
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Identification of Vibrio alginolyticus as a causative pathogen associated with mass summer mortality of the Pacific Oyster (Crassostrea gigas) in China Aquaculture (IF 3.224) Pub Date : 2021-01-08 Ben Yang; Shangyu Zhai; Xin Li; Jing Tian; Qi Li; Hongwei Shan; Shikai Liu
In August 2019, an outbreak of mass mortality occurred in the Pacific oysters farmed in Shandong, China, resulting in over 60% mortality. Bacterial pathogens were isolated from moribund oysters, among which one strain identified as gram-negative rod-shaped bacterium, named as Cg5, was further characterized in this study. Based on 16S rRNA phylogenetic analysis and biochemical characterization, Cg5
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Metabolomics and lipidomics analyses delineating Hfq deletion- induced metabolic alterations in Vibrio alginolyticus Aquaculture (IF 3.224) Pub Date : 2021-01-07 Yanni Zhao; Jiamin Ren; Heyang Jiang; Xuefeng Chen; Mudan Xu; Yue Li; Jieyu Zhao; Dan Chen; Kun Zhang; Hua Li; Huan Liu
Vibrio alginolyticus, a Gram-negative halophilic zoonotic pathogen, can cause bacterial hemorrhagic septicemia in various aquaculture species and wound infections in humans. V. alginolyticus brings about huge economic losses in aquaculture all around the world. Hfq, a ubiquitous RNA-binding protein, is a global post-transcriptional regulator in most bacteria and some archaea, by facilitating base-pairing
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Enhanced immersion vaccination through hyperosmotic treatment in the largemouth bass (Micropterus salmoides) Aquaculture (IF 3.224) Pub Date : 2021-01-11 Ronghua Wu; Yuyu Chi; Jiaqian Yu; Chang Ni; Jiayun Yao
This study aims to evaluate the effects of immersion vaccination through hyperosmotic treatment, and determine the optimum hyperosmotic salinity for largemouth bass (Micropterus salmoides) by determining immune responses and protective efficacies post vaccination. For hyperosmotic immersion (HI), M. salmoides were immersed in three hyperosmotic salinities (5, 10 and 20‰ salinity) respectively, then
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The influence of anesthetics on neurotransmitters in the nervous system of Sepia pharaonis Aquaculture (IF 3.224) Pub Date : 2021-01-09 Hua Yang; Xueni Qiu; Yun Zhao; Yangfang Ye; Weiwei Song; Changkao Mu; Ronghua Li; Chunlin Wang
Anesthesia is a stress mitigation technique widely used during transportation and short-term human manipulation, such as labeling and measurement of body parameters of aquatic animals. This is because anesthetics affect the content of neurotransmitters, exerting various effects on the body. This study determined optimal anesthetic concentration for cuttlefish by measuring the anesthetic and recovery
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Stochastic dynamic model analysis of the effect of stocking density on the monosex production of male redclaw crayfish Cherax quadricarinatus reared in commercial gravel-lined ponds Aquaculture (IF 3.224) Pub Date : 2021-01-06 José Naranjo-Páramo; Alfredo Hernández-Llamas; Mayra Vargas-Mendieta; Humberto Villarreal-Colmenares
The potential for commercial Australian redclaw crayfish culture is considered very significate. However, information on maximization of pond carrying capacity that provides consistent production of commercial sizes is limited. A stochastic model was used to study the dynamics of commercial male redclaw production in 2500 m2 gravel-lined ponds with continuous aeration, when reared at 1, 2, 4, and 6
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Dietary Mitracarpus scaber leaves extract improved growth, antioxidants, non-specific immunity, and resistance of Nile tilapia, Oreochromis niloticus to Gyrodactylus malalai infestation Aquaculture (IF 3.224) Pub Date : 2021-01-15 Ibrahim Adeshina; Lateef O. Tiamiyu; Benjamin U. Akpoilih; Adetola Jenyo-Oni; Emmanuel K. Ajani
Gryodactylus malalai is a monogenean ectoparasite that causes damage to the skins and gills of the infected fish. It is a viviparous organism and easily transmitted to other fish in an aquatic ecosystem resulting in huge biological and economical losses. The use of chemotherapeutics is the method adopted by farmers in the treatment, and control of monogenean infections. However, the use of these chemotherapeutics
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Cross-protection of Listonella anguillarum and Vibrio alginolyticus FKC bacterins to control vibriosis in European sea bass (Dicentrarchus labrax) Aquaculture (IF 3.224) Pub Date : 2021-01-15 Amany M. Diab; R.H. Khalil; Rasmia H.M. Abu Leila; Mahmoud M. Abotaleb; Mohamed A. Khallaf; Mahmoud A.O. Dawood
This study investigated a practical, inexpensive, and effective vibriosis control experimentally for serious causes of severe mortalities of cultured European sea bass (Dicentrarchus labrax) using FKC bacterins of Listonella anguillarum or Vibrio alginolyticus, their cross-protection against L. anguillarum or V. alginolyticus, and their most suitable administration route in D. labrax. The results of
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Hypoxia tolerance, hematological, and biochemical response in juvenile turbot (Scophthalmus maximus. L) Aquaculture (IF 3.224) Pub Date : 2021-01-15 Yudong Jia; Jiawei Wang; Yuntao Gao; Bin Huang
Hypoxia is a critical issue in aquaculture which affects the metabolism and survival of fish. The critical oxygen tension (Pcrit), loss of equilibrium (LOE), respiration frequency (RF), plasma cortisol, glucose, lactate, cholesterol (CHO), triglyceride (TG), high-density lipoprotein (HDL), low-density lipoprotein (LDL), total protein, albumin, globulin, albumin/globulin, white blood cell (WBC), red
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The diversity of Pseudomonas species isolated from fish farms in Turkey Aquaculture (IF 3.224) Pub Date : 2021-01-15 Muhammed Duman; Magdalena Mulet; Soner Altun; Izzet Burcin Saticioglu; Burak Ozdemir; Nihed Ajmi; Jorge Lalucat; Elena García-Valdés
The prevalence of Pseudomonas species in freshwater fish and water from aquaculture farms in Turkey was determined on a monthly basis, in the period covering 2013–2017 and two seasons of 2018. The farms included in the study were located in six different regions of Turkey. A total of 90 Pseudomonas strains were isolated from water and diseased and healthy fish, and were classified under 20 species
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Controlling the source of green tides in the Yellow Sea: NaClO treatment of Ulva attached on Pyropia aquaculture rafts Aquaculture (IF 3.224) Pub Date : 2021-01-15 Jinlin Liu; Jing Xia; Minmin Zhuang; Jianheng Zhang; Kefeng Yu; Shuang Zhao; Yuqing Sun; Yichao Tong; Lihua Xia; Yutao Qin; Peimin He; Wei Liu; Weiping Dai; Hong Xu
Green macroalgal blooms have occurred in the Yellow Sea for 13 consecutive years since 2007. However, effective control methods have not yet been successfully developed. Ulva prolifera attached on Pyropia aquaculture rafts was identified as the main source of the blooms, thus, eliminating the attached Ulva from the rafts should be the most efficient method to prevent and control these blooms. In this
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Interactive effects of temperature and water exchange of depuration tanks on geosmin excretion by Atlantic salmon (Salmo salar) Aquaculture (IF 3.224) Pub Date : 2021-01-07 Edward Schram; Christiaan Kwadijk; Ewout Blom; Johan A.J. Verreth; Albertinka J. Murk; Johan W. Schrama
Fish farmers utilize the reversibility of the bioconcentration process to depurate geosmin and other off- flavour causing chemicals from their fish by placing them in clean water just before harvest. To better understand and improve this process, we investigated effects of temperature and water exchange of depuration tanks on geosmin elimination from Atlantic salmon (Salmo salar). Fish loaded with
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Genome analysis and antimicrobial resistance characteristics of Chryseobacterium aquaticum isolated from farmed salmonids Aquaculture (IF 3.224) Pub Date : 2021-01-07 Izzet Burcin Saticioglu; Muhammed Duman; Soner Altun
Fish diseases caused by bacterial genera belonging to the family Flavobacteriaceae, especially Tenacibaculum, Flavobacterium, and Chryseobacterium, are responsible for losses in wild and farmed fish around the world. In the last decade, the genus Chryseobacterium has rapidly grown in parallel with numerous novel Chryseobacterium species described from systemic infections of fish. Members of the family
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High broodstock fads2 expression combined with nutritional programing through broodstock diet improves the use of low fishmeal and low fish oil diets in gilthead seabream (Sparus aurata) progeny Aquaculture (IF 3.224) Pub Date : 2020-12-25 Hanlin Xu; Shajahan Ferosekhan; Serhat Turkmen; Juan Manuel Afonso; María Jesús Zamorano; Marisol Izquierdo
One of the factors that limits the replacement of fish meal (FM) and fish oil (FO) by plant ingredients in diets for marine fish, is their lack of long chain-polyunsaturated fatty acids (LC-PUFA). LC-PUFA are essential fatty acids for these fish species, which lack sufficient fatty acyl desaturase 2 (Fads2) activity to synthesize them. Nutritional programing or the use of broodstock with a higher Fads2
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High protein intake promotes the adaptation to chronic hypoxia in zebrafish (Danio rerio) Aquaculture (IF 3.224) Pub Date : 2021-01-07 Qiang Ma; Xue Wang; Ling-Yu Li; Fang Qiao; Mei-Ling Zhang; Zhen-Yu Du
Chronic hypoxia is a common environmental stress factor in aquaculture. Many researchers have illustrated the physiological and metabolic changes under chronic hypoxia, but there are few studies to evaluate the relationship between dietary nutrients and hypoxic adaptation in fish. In the present study, we fed zebrafish with control diet (C), high-carbohydrate diet (HC), high-fat diet (HF) and high-protein
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Enrichment of trace elements in red swamp crayfish: Influences of region and production method, and human health risk assessment Aquaculture (IF 3.224) Pub Date : 2021-01-09 Mengying Zhou; Qingqing Wu; Hao Wu; Jinling Liu; Yongqiang Ning; Shuyun Xie; Wenmin Huang; Xiangyang Bi
Understanding the characteristics of trace element enrichment in crayfish from different regions is important for brand protection, quality control, and food safety. Here, we collected farmed and wild crayfish (n = 660) from four regions of China to explore differences in trace element enrichment and find an effective method of identifying their origin. The concentrations of most trace elements in
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Genome-wide analysis of TRAF gene family and its response to bacterial infection in noble scallop Chlamys nobilis with different carotenoids content Aquaculture (IF 3.224) Pub Date : 2020-12-29 Hongkuan Zhang; Karsoon Tan; Shengkang Li; Hongyu Ma; Huaiping Zheng
Tumor necrosis factor (TNF) receptor-associated factors (TRAFs) are multifunctional adaptor proteins in the immune system, which play significant roles in the regulation of Toll-like receptor and RIG-I-like receptor signaling pathway in animals. Although many TRAF genes have been identified in mollusks, the systematic identification of the TRAF gene family in noble scallop Chlamys nobilis has not been
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Effect of Brachionus plicatilis and Navicula sp. on Pacific white shrimp growth performance, Vibrio, immunological responses and resistance to white spot virus (WSSV) in nursery biofloc system Aquaculture (IF 3.224) Pub Date : 2021-01-01 Allyne Elins Moreira da Silva; Luis Otavio Brito; Danielle Alves da Silva; Priscilla Celes Maciel de Lima; Renata da Silva Farias; Alfredo Olivera Gálvez; Suzianny Maria Bezerra Cabral da Silva
The purpose of this study was to evaluate the effect of Brachionus plicatilis and Navicula sp. addition on growth performance, Vibrio count, immunological responses and resistance to white spot syndrome virus (WSSV) of Litopenaeus vannamei in nursery biofloc system. The study was divided into two phases and four treatments were examined in the first phase: BFT (biofloc); BFT-N (addition of 10×104 cells
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CqsA inhibits the virulence of Vibrio harveyi to the pearl gentian grouper (♀Epinephelus fuscoguttatus × ♂Epinephelus lanceolatus) Aquaculture (IF 3.224) Pub Date : 2021-01-06 Yaqiu Zhang; Yiqin Deng; Juan Feng; Zhixun Guo; Can Mao; Haoxiang Chen; Ziyang Lin; Jianmei Hu; Youlu Su
Vibrio harveyi is an opportunistic Gram-negative pathogen that threatens future development of global aquaculture as well as human health. In this study, to gain insight into virulence regulation of cqsA in V. harveyi, a ΔcqsA mutant strain and complementation of the ΔcqsA mutant (C-cqsA) were constructed and phenotypically characterized. Deletion of cqsA led to enhanced mobility, iron absorption,
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Vertical distribution patterns of larval supply and spatfall of three species of Mytilidae in a Chilean fjord used for mussel farming: Insights for mussel spatfall efficiency Aquaculture (IF 3.224) Pub Date : 2021-01-06 Carlos Molinet; Marcela Astorga; Leny Cares; Manuel Diaz; Karol Hueicha; Sandra Marín; Thamara Matamala; Doris Soto
The spatfall of mussels on artificial collectors sustains the production of ~350,000 t of mussels per year in Chile, which is known as “capture based aquaculture” (CBA), although little is known about the processes that determine a successful or unsuccessful spatfall. We studied the vertical variability of the larval supply and spat of Mytilus chilensis, Choromytilus chorus and Aulacomya atra in a
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The influence of enzyme EII of the cellobiose-phosphotransferase system on the virulence of Streptococcus agalactiae in Nile tilapia (Oreochromis niloticus) Aquaculture (IF 3.224) Pub Date : 2021-01-05 Yundan Xie; Baotun Wang; Juan Feng; Wei Li; Biao Jiang; Chun Liu; Yanhua Huang; Youlu Su
Streptococcus agalactiae is the main pathogen of tilapia, causing huge economic losses to the tilapia aquaculture industry in China. To elucidate the role of the EII complexes of the cellobiose-phosphotransferase system (cel-PTS) in the regulation of S. agalactiae virulence, the △cel-EII mutants of a high virulence strain (THN0901) and a low virulence strain (TFJ0901) were constructed using homologous
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Pathogenesis of experimental vibriosis in blue mussel (Mytilus edulis) larvae based on accurate positioning of GFP-tagged Vibrio strains and histopathological and ultrastructural changes of the host Aquaculture (IF 3.224) Pub Date : 2021-01-06 Dongdong Wang; Nelia Mbewe; Lobke De Bels; Liesbeth Couck; Gilbert Van Stappen; Wim Van den Broeck; Nancy Nevejan
Bacteria, especially Vibrio spp., are largely responsible for larval diseases in shellfish aquaculture. Despite the severe impact of bacterial diseases on larval health, only a few direct studies have characterized the pathogenesis of vibriosis in bivalve larvae. To clarify the onset and advancement of vibriosis in blue mussel Mytilus edulis larvae, two known larval pathogens Vibrio splendidus ME9
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Response of bacterial community in sea cucumber Apostichopus japonicus intestine, surrounding water and sediment subjected to high-temperature stress Aquaculture (IF 3.224) Pub Date : 2021-01-06 Luo Wang; Chong Wei; Yaqing Chang; Jun Ding
During the anomalously hot summer of 2018, the water temperature in a sea cucumber culture pond reached 28–33 °C. As a result, many sea cucumbers died from the high temperature, causing huge economic losses. Currently, changes in the bacterial community of the sea cucumber culture pond ecosystem during high temperature remain largely unknown. In this study, we investigated the effects of high temperature
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Effects of melatonin feed on the changes of hemolymph immune parameters, antioxidant capacity, and mitochondrial functions in Chinese mitten crab (Eriocheir sinensis) caused by acute hypoxia Aquaculture (IF 3.224) Pub Date : 2021-01-11 Yameng Song; Mengyao Wu; Yangyang Pang; Xiaozhe Song; Aoya Shi; Xingliang Shi; Chao Niu; Yongxu Cheng; Xiaozhen Yang
Oxygen is essential for crustaceans, and hypoxia will have a negative impact on the growth and development of crustaceans. The aim of this study was to evaluate the protective effects of melatonin (MT) on hemolymph immune parameters (Hemocyanin, Total haemocytes count (THC), Phenoloxidase (PO)), Antioxidant capacity, heat shock proteins (Hsp), mitochondrial number, cytochrome C (CytC) and Na+-K+ ATPase
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Expression of polymeric immunoglobulin receptor (pIgR) and immunoglobulin (IgM) gene in mucosal-associated lymphoid tissues (MALT) of Labeo rohita fingerlings immunized with pDNA (pGPD-IFN) vaccine Aquaculture (IF 3.224) Pub Date : 2021-01-06 Tasok Leya; Rajendran Kooloth Valappil; Gayatri Tripathi; Pani Prasad Kurcheti; Megha Kadam Bedekar
Polymeric immunoglobulin receptor (pIgR) is a protein that transports Immunoglobulins (Igs) from epithelial cells into the external secretion system of the animal. In the present study, we characterized the partial pIgR gene from Labeo rohita and analyzed its expression in response to the pDNA (pGPD-IFN) vaccine, and studied its correlation with the expression of IgM, in the mucosal-associated lymphoid
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Effect of dietary inactivated Lactobacillus plantarum on growth performance, antioxidative capacity, and intestinal integrity of black sea bream (Acanthopagrus schlegelii) fingerlings. Aquaculture (IF 3.224) Pub Date : 2021-01-09 Gladstone Sagada; Neveen Gray; Lei Wang; Bingying Xu; Lu Zheng; Zhiwen Zhong; Sami Ullah; Arnaud Fabrice Tegomo; Qingjun Shao
Probiotic supplementation in fish feed is becoming popular as a viable alternative to curb the indiscriminate use of antibiotics in aquaculture. The effect of inactivated Lactobacillus plantarum on growth performance and health related indices of black sea bream (Acanthopagrus schlegelii) fingerlings was studied, using different concentrations of a commercial inactivated L. plantarum product (Immuno-LP20):
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Impact of vaccination and selective breeding on the transmission of Infectious salmon anemia virus Aquaculture (IF 3.224) Pub Date : 2021-01-09 Margo E. Chase-Topping; Chris Pooley; Hooman K. Moghadam; Borghild Hillestad; Marie Lillehammer; Lene Sveen; Andrea Doeschl-Wilson
A transmission trial was carried out using 420 Atlantic salmon (Salmo salar L., parr stage) to simultaneously test the impact of vaccination and selective breeding on the transmission of Infectious salmon anemia virus (ISAV). Genetic difference in disease resistance was based on mortality differences across 15 families (defined by a genomic breeding value (GEBV)) and organised into three groups (low
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Reduced transmission of IHHNV to Penaeus monodon from shrimp pond wastewater filtered through a polychaete-assisted sand filter (PASF) system Aquaculture (IF 3.224) Pub Date : 2021-01-09 Paul J. Palmer; Min Rao; Jeff A. Cowley
A polychaete-assisted sand filter (PASF) can aid water recirculation systems for shrimp culture ponds by removing large amounts of nutrients and suspended solids and chemically treating wastewater. By ingesting and degrading organic matter, Perinereis helleri polychaetes reared in a PASF can accumulate and potentially remove infectious hypodermal and haemopoietic necrosis virus (IHHNV) present in wastewater
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