51 results match your criteria Aquaculture[Journal]

A practical evaluation of machine learning for classification of ultrasound images of ovarian development in channel catfish .

Aquaculture 2022 Apr 15;552. Epub 2022 Feb 15.

School of Electrical Engineering and Computer Science, Louisiana State University, Baton Rouge, Louisiana 70803, USA.

Machine learning is a powerful tool to improve efficiency of industrial processes, but it has not yet been well utilized in aquacultural and hatchery applications. The goal of the present study was to evaluate the feasibility of using a broad array of machine learning approaches (testing of > 200 vectorization and model combinations, reporting on 20) to classify ultrasound images spanning annual ovarian development (i.e. Read More

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Whole genome resequencing data enables a targeted SNP panel for conservation and aquaculture of cichlid fishes.

Aquaculture 2022 Feb;548:737637

School of Natural Sciences, Bangor University, Bangor LL57 2UW, UK.

Cichlid fish of the genus form the basis of the global tilapia aquaculture and fisheries industries. Broodstocks for aquaculture are often collected from wild populations, which in Africa may be from locations containing multiple species. However, many species are difficult to distinguish morphologically, hampering efforts to maintain good quality farmed strains. Read More

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February 2022

Anemia in salmon aquaculture: Scotland as a case study.

Aquaculture 2022 Jan;546:737313

School of Health and Life Sciences, University of the West of Scotland, Paisley, Scotland, UK.

Anemia in salmonid aquaculture is a recognized blood disorder resulting from the reduction of hemoglobin concentration and/or erythrocyte count. Because of sub-optimal oxygen supply to the tissues, as a negative impact of anemia fish will experience reduced growth and poor health. This health challenge may be linked with several factors including anthropogenic changes in the marine environment, infectious etiology (viral, bacterial, and parasitic), nutritional deficiencies, or hemorrhaging. Read More

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January 2022

Feed Intake as an Estimation of Attractability in Pacific White Shrimp .

Aquaculture 2021 Feb 12;532. Epub 2020 Oct 12.

The University of Alabama at Birmingham, Department of Biology, 1300 University Blvd. Birmingham, AL. 35294.

A simple bioassay that quantifies feed intake as an estimation of relative attractability of feeds containing different ingredients in the Pacific white shrimp is described. Fish meal (FM), fish protein hydrolysate (FPH), squid meal (SqM) and casein (CN) were assessed at the same dietary level for their relative influence on feed intake rates of . A bland diet containing 92% whole wheat grain meal, 6% diatomaceous earth and 2% alginate with a known low attractability was used as the standard control or base diet. Read More

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February 2021

Covid-19 Opens up domestic market for Indian shrimp.

Aquaculture 2022 Mar 13;550:737818. Epub 2021 Dec 13.

International Food Policy Research Institute, Washington, DC, USA.

COVID-19 pandemic presents both a challenge and an opportunity to the Indian shrimp sector. With revitalizing the institutional arrangements and redirecting the focus, the Indian shrimp industry can flourish just by adapting to the needs of the local demand, even when the export prospects are uncertain. This paper takes a historical perspective of Indian shrimp farming and exports and suggests a domestic alternative/supplementary market for Indian farmed shrimp, resulting from COVID-19. Read More

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Testing of NKA expression by mobile real time PCR is an efficient indicator of smoltification status of farmed Atlantic salmon.

Aquaculture 2021 Nov;544:737085

Institute of Aquaculture, University of Stirling, Stirling, United Kingdom.

Assessment of seawater readiness of freshwater salmon smolts is a crucial husbandry step with economic implications in salmon aquaculture but current methods rely on delayed centralised enzymic activity measurement. The efficiency of a qRT-PCR assay for sodium potassium ATPase (NKA) α1a mRNA was tested in a 3-year study on 19 hatcheries across Scotland incorporating environmental factors such as temperature and metal contamination. The NKA qRT-PCR assay was transferred to a mobile laboratory and on-site testing was carried out at 3 hatchery sites. Read More

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November 2021

Policy framework and development strategy for freshwater aquaculture sector in the light of COVID-19 impact in Andaman and Nicobar archipelago, India.

Aquaculture 2022 Feb 23;548:737596. Epub 2021 Oct 23.

ICAR- Central Island Agricultural Research Institute, Port Blair 744105, Andaman and Nicobar Islands, India.

The present study was aimed at understanding the impact of COVID-19 pandemic related restrictions on the freshwater aquaculture sector of Andaman and Nicobar archipelago (ANI). We interviewed the freshwater fish farmers ( = 211) covering all the three districts (North and Middle, South Andaman, Nicobar district) of the archipelago. The results revealed the critical issues faced by the stakeholders such as fish seed unavailability, limitations in feeding, insufficient logistical support, movement related restrictions, lack of inputs, manpower shortages, etc. Read More

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February 2022

Livelihood challenges and healthcare-seeking behavior of fishermen amidst the COVID-19 pandemic in the Sundarbans mangrove forest of Bangladesh.

Aquaculture 2022 Jan 17;546:737348. Epub 2021 Aug 17.

Forestry and Wood Technology Discipline, Life Science School, Khulna University, Khulna 9208, Bangladesh.

The outbreak of coronavirus disease (COVID-19) has posed significant challenges to human wellbeing and survival, particularly among groups of people such as the Sundarbans mangrove forest resource-dependent communities (SMFRDCs), and especially the fishermen in these communities, in developing countries like Bangladesh. It is therefore essential to explore the livelihood conditions, health status and care-seeking behavior of the fishermen in these communities during the ongoing pandemic. This study was carried out by applying mixed methods, including interviews and focus group discussion (FGD), in the three sub-districts of Khulna, Satkhira, and Bagerhat, which are in the southwestern region adjacent to the Sundarbans mangrove forest (SMF) of Bangladesh. Read More

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January 2022

Genome erosion and evidence for an intracellular niche - exploring the biology of mycoplasmas in Atlantic salmon.

Aquaculture 2021 Aug;541:736772

Institute of Biodiversity, Animal Health and Comparative Medicine, Graham Kerr Building, University of Glasgow, Glasgow G12 8QQ, United Kingdom.

Mycoplasmas are the smallest autonomously self-replicating life form on the planet. Members of this bacterial genus are known to parasitise a wide array of metazoans including vertebrates. Whilst much research has been significant targeted at parasitic mammalian mycoplasmas, very little is known about their role in other vertebrates. Read More

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Systems-thinking approach to identify and assess feasibility of potential interventions to reduce antibiotic use in tilapia farming in Egypt.

Aquaculture 2021 Jul;540:736735

Royal Veterinary College, University of London, AL9 7TA, United Kingdom.

Antibiotics are used in aquaculture to maintain the health and welfare of stocks; however, the emergence and selection of antibiotic resistance in bacteria poses threats to humans, animals and the environment. Mitigation of antibiotic resistance relies on understanding the flow of antibiotics, residues, resistant bacteria and resistance genes through interconnecting systems, so that potential solutions can be identified and issues around their implementation evaluated. Participatory systems-thinking can capture the deep complexity of a system while integrating stakeholder perspectives. Read More

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Antiviral peptides from aquatic organisms: Functionality and potential inhibitory effect on SARS-CoV-2.

Aquaculture 2021 Aug 15;541:736783. Epub 2021 Apr 15.

Department of Aquaculture, Sylhet Agricultural University, Sylhet 3100, Bangladesh.

Several antiviral peptides (AVPs) from aquatic organisms have been effective in interfering with the actions of infectious viruses, such as Human Immunodeficiency Virus-1 and Herpes Simplex Virus-1 and 2. AVPs are able to block viral attachment or entry into host cells, inhibit internal fusion or replication events by suppressing viral gene transcription, and prevent viral infections by modulating host immunity. Therefore, as promising therapeutics, the potential of aquatic AVPs for use against the COVID-19 pandemic caused by SARS-CoV-2 (severe acute respiratory syndrome coronavirus 2) is considered. Read More

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SARS-CoV-2 transmission via aquatic food animal species or their products: A review.

Aquaculture 2021 Apr 4;536:736460. Epub 2021 Feb 4.

Department of Pathology and Microbiology, Atlantic Veterinary College, University of Prince Edward Island, 550 University Ave., Charlottetown, P.E.I., C1A 4P3, Canada.

Outbreaks of COVID-19 (coronavirus disease 2019) have been reported in workers in fish farms and fish processing plants arising from person-to-person transmission, raising concerns about aquatic animal food products' safety. A better understanding of such incidents is important for the aquaculture industry's sustainability, particularly with the global trade in fresh and frozen aquatic animal food products where contaminating virus could survive for some time. Despite a plethora of COVID-19-related scientific publications, there is a lack of reports on the risk of contact with aquatic food animal species or their products. Read More

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Oil from transgenic as a source of EPA and DHA in feed for European sea bass ( L.).

Aquaculture 2021 Jan;530:735759

Institute of Aquaculture, Faculty of Natural Sciences, University of Stirling, Stirling FK9 4LA, United Kingdom.

Aquaculture, the fastest growing food production sector cannot continue to rely on finite stocks of marine fish as the primary source of the omega-3 (n-3) long-chain polyunsaturated fatty acids (LC-PUFA), eicosapentaenoic acid (EPA; 20:5n3) and docosahexaenoic acid (DHA; 22:6n-3), for feeds. A four-month feeding trial was conducted to investigate the impact of a oil, with high levels of EPA and DHA, obtained from transgenic on growth performance, tissue fatty acid profiles, and expression of lipid metabolism genes when used as a replacement for fish oil in feed for European seabass (). Triplicate groups of 50 juvenile fish (initial weight 16. Read More

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January 2021

Evaluation of graded levels of soy oil as a fish oil replacement in high soy protein feeds for juvenile red drum, .

Aquaculture 2020 ;529

Marine Resources Research Institute, South Carolina Department of Natural Resources, 217 Fort Johnson Road, Charleston, SC 29412, USA.

A 9-week feeding trial was conducted with juvenile red drum, to evaluate the use of soy oil as a fish oil replacement. Three primary protein sources (fishmeal - FM, soybean meal - SBM, and soy protein concentrate - SPC) were utilized with 100% fish oil (FM, SBM, SPC), 75% fish oil (SBM, SPC), or 50% fish oil (FM, SBM, SPC) as the lipid source. Traditional growth and performance metrics (specific growth rate, feed consumption, feed conversion ratio) were tracked and tissue samples (liver, muscle, plasma, adipose, and brain) were collected for gas chromatography-based fatty acid profiling. Read More

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January 2020

Dietary mediated the growth performance, fillet colouration, and immune response of Persian sturgeon ().

Aquaculture 2021 Jan 20;530:735950. Epub 2020 Sep 20.

Department of Fisheries Science, Science and Research Branch, Islamic Azad University, Tehran, Iran.

Algal seaweeds have abundant amounts of active substances and can be used as pharmaceuticals and biomedicals in aquafeeds. In this context, the powder of red macroalgae was included in the diets of Persian sturgeon at the rate of 0, 2.5, 5, and 10 g/kg to investigate its role on the growth rate, fillet colouration, haemato-biochemical indices, serum, and skin mucus immunity. Read More

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January 2021

Prospective impact of Corona virus disease (COVID-19) related lockdown on shrimp aquaculture sector in India - a sectoral assessment.

Aquaculture 2021 Jan 11;531:735922. Epub 2020 Sep 11.

ICAR-Central Institute of Brackishwater Aquaculture, 75, Santhome High Road, Chennai 600 028, India.

The lockdown on account of the Coronavirus disease 2019 (COVID-19) adversely impacted the food production sector including aquaculture, globally. Unfortunately, it coincided with the major shrimp farming season in India which contributes 60% of the national annual shrimp production hence the impact was substantial. An on-line survey was carried out among the stakeholders of the shrimp farming sector to evaluate the prospective impact of COVID-19 related lockdown across the shrimp supply chain. Read More

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January 2021

Sex, salinity and sampling period dependent patterns of growth hormone mRNA expression in Mozambique tilapia.

Aquaculture 2020 Mar 22;519. Epub 2019 Nov 22.

University of Hawai'i Sea Grant College Program, University of Hawai'i at Mānoa, Honolulu, HI 96822, USA.

Tilapias comprise the second most aquacultured finfish group in the world. Such popularity stems in part from their tolerance to a wide range of environmental conditions and their sexually dimorphic nature, where males grow larger than females. As in other vertebrates, growth in tilapia is regulated by the growth hormone/ insulin like growth factor (GH/IGF) system. Read More

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The exploration of artificial incubation of eggs.

Aquaculture 2020 Dec 5;529:735576. Epub 2020 Jun 5.

Zhejiang Institute of Freshwater Fisheries, Agriculture Ministry Key Laboratory of Healthy Freshwater Aquaculture, Key Laboratory of Freshwater Aquatic Animal Genetic and Breeding of Zhejiang Province, Huzhou, Zhejiang 313001, China.

The redclaw crayfish, , is an economically valuable freshwater crayfish. However, some production obstacles, such as a low egg hatching rate and asynchronous hatching, are hindering its development in the aquaculture industry. Artificial incubation of eggs may solve these problems. Read More

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December 2020

Developmental Staging and Salinity Tolerance in Embryos of the Delta Smelt, .

Aquaculture 2019 Sep 4;511. Epub 2019 Jun 4.

Department of Anatomy, Physiology, and Cell Biology, University of California, Davis, CA 95616, USA.

Delta smelt () is a critically endangered species endemic to the San Francisco Bay Delta (SFBD). Important for the conservation of this species is understanding the physiological and ecological impacts contributing to their population decline, and current studies lack information on embryonic development. Changes in patterns of salinity across the SFBD may be a particularly important environmental stressor contributing to the recruitment and survival of the species. Read More

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September 2019

Interleukin-17 suppresses grass carp reovirus infection in kidney cells by activating NF-κB signaling.

Aquaculture 2020 Apr 16;520:734969. Epub 2020 Jan 16.

School of Biology and Basic Medical Sciences, Soochow University, Suzhou, Jiangsu 215123, China.

The grass carp accounts for a large proportion of aquacultural production in China, but the hemorrhagic disease caused by grass carp reovirus (GCRV) infection often causes huge economic losses to the industry. Interleukin 17 (IL-17) is an important cytokine that plays a critical role in the inflammatory and immune responses. Although IL-17 family members have been extensively studied in mammals, our knowledge of the activity of IL-17 proteins in teleosts in response to viral infection is still limited. Read More

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Microencapsulated diets to improve growth and survivorship in juvenile European flat oysters ().

Aquaculture 2019 Apr;505:256-262

Department of Zoology, The David Attenborough Building, University of Cambridge, Pembroke Street, Cambridge, CB2 3QZ, United Kingdom.

Sustainable expansion of aquaculture is critical to global food security, and bivalve shellfish aquaculture represents a sustainable method to provide people with affordable nutritious food. Oysters represent 54% of the global bivalve market by value, with propagation of juveniles within hatcheries critical to allow the industry to grow. Growth and survival of juvenile oysters in hatchery systems is constrained by suboptimal feed. Read More

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Bacterial community analysis of marine recirculating aquaculture system bioreactors for complete nitrogen removal established from a commercial inoculum.

Aquaculture 2019 Mar 28;503:198-206. Epub 2018 Dec 28.

Sustainable Aquaculture Systems Inc., 715 Pittstown Road, Frenchtown, NJ 08825, USA.

An experimental recirculating aquaculture system was constructed under ambient seawater conditions to compare microbial community diversity of nitrifying and denitrifying biofilters that were derived from a commercial inoculum used for aquarium applications. Next generation sequencing revealed distinct and diverse microbial communities in samples analyzed from the commercial inoculant and the denitrification and nitrification biofilters. In all samples, communities were represented by a few dominant operational taxonomic units (OTUs). Read More

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Symbiont-derived sphingolipids regulate inflammatory responses in rainbow trout ().

Aquaculture 2018 Oct 31;495:932-939. Epub 2018 May 31.

Center for Evolutionary and Theoretical Immunology, Department of Biology, University of New Mexico, Albuquerque, NM 87131-0001, USA.

Farmed fish live in association with diverse bacterial communities that produce wide arrays of metabolites. In rainbow trout, the skin and the gills are colonized by , a bacterium known to produce sphingolipids (SLs). The goal of this study is to evaluate the ability of SLs to regulate rainbow trout inflammatory responses. Read More

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October 2018

Impact of dietary phosphorous in diploid and triploid Atlantic salmon ( L.) with reference to early skeletal development in freshwater.

Aquaculture 2018 Mar;490:329-343

Institute of Aquaculture, University of Stirling, Stirling, Scotland, UK.

In order to assess the effect of dietary phosphorus (P) in reducing vertebral malformations and improving freshwater (FW) performance in triploid Atlantic salmon (), both triploid and diploid Atlantic salmon were fed three different dietary P inclusion levels (low: 4.9, medium: 7.7, and high: 9. Read More

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Evaluation on the antiviral activity of arctigenin against spring viraemia of carp virus.

Aquaculture 2018 Jan 5;483:252-262. Epub 2017 Sep 5.

College of Animal Science and Technology, Northwest A&F University, Xinong Road 22nd, Yangling, Shaanxi 712100, China.

Spring viraemia of carp virus (SVCV) causes high morality in several economically important cyprinid fishes, but there is no approved therapy up to now. To address the urgent need for therapeutics to combat SVCV infection, we investigated the anti-SVCV activities of 12 natural compounds and 7 common antiviral agents using epithelioma papulosum cyprini (EPC) cells in this study. From the 19 compounds, we identified arctigenin (ARG) has the highest inhibition on SVCV replication, with maximum inhibitory percentage on SVCV > 90%. Read More

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January 2018

Cryobanking of aquatic species.

Aquaculture 2017 Apr 1;472:156-177. Epub 2016 Jun 1.

CCMAR-Centre of Marine Sciences, University of Algarve, Campus Gambelas, 8005-139 Faro, Portugal.

This review is focused on the applications of genome cryobanking of aquatic species including freshwater and marine fish, as well as invertebrates. It also reviews the latest advances in cryobanking of model species, widely used by the scientific community worldwide, because of their applications in several fields. The state of the art of cryopreservation of different cellular types (sperm, oocytes, embryos, somatic cells and primordial germ cells or early spermatogonia) is discussed focusing on the advantages and disadvantages of each procedure according to different applications. Read More

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Modelling growth performance and feeding behaviour of Atlantic salmon ( L.) in commercial-size aquaculture net pens: Model details and validation through full-scale experiments.

Aquaculture 2016 11;464:268-278

Nofima, NO-6600 Sunndalsøra, Norway.

We have developed a mathematical model which estimates the growth performance of Atlantic salmon in aquaculture production units. The model consists of sub-models estimating the behaviour and energetics of the fish, the distribution of feed pellets, and the abiotic conditions in the water column. A field experiment where three full-scale cages stocked with 120,000 salmon each (initial mean weight 72. Read More

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November 2016

Environmental and physiological factors shape the gut microbiota of Atlantic salmon parr ( L.).

Aquaculture 2017 Jan;467:149-157

Institute of Biological and Environmental Sciences, University of Aberdeen, Tillydrone Avenue, Aberdeen AB24 2TZ, UK.

Gut microbes are key players in host immune system priming, protection and development, as well as providing nutrients to the host that would be otherwise unavailable. Due to this importance, studies investigating the link between host and microbe are being initiated in farmed fish. The establishment, maintenance and subsequent changes of the intestinal microbiota are central to define fish physiology and nutrition in the future. Read More

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January 2017


Aquaculture 2016 10 12;463:51-60. Epub 2016 May 12.

University of Alabama at Birmingham, Department of Biology, 1300 University Blvd., CH 375, Birmingham, AL 35294, USA, 205-934-2045.

Juvenile (ca. 3.95± 0. Read More

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October 2016

Amine reactive dyes: an alternative to estimate membrane integrity in fish sperm cells.

Aquaculture 2016 10 20;463:71-78. Epub 2016 May 20.

Aquatic Germplasm and Genetic Resources Center, School of Renewable Natural Resources, Louisiana State University Agricultural Center, 2288 Gourrier Avenue, Baton Rouge, LA 70820.

Fluorescent dyes that binds irreversibly to cellular amines, come in several available emission spectra, and do not poses health concerns were used to evaluate membrane integrity in fish sperm cells. The objectives of the present study were to determine: (1) a working dye concentration for fish sperm samples, and (2) if the traditional propidium iodide/SYBR-14 staining combination was comparable with the amine reactive dye (ARD) methods at identifying cell populations with intact and compromised membranes after sperm activation, refrigerated storage, and exposure to cryoprotectant and surfactant. Zebrafish () sperm were obtained by stripping, and pooled samples (in triplicate) were used in all tests. Read More

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October 2016