Aquaculture Research最新文献

{"title":"Microplastics in Commercial Fish Feed in Bangladesh: An Emergent Risk Factor for Aquaculture","authors":"Sayed Abdulla Abu Nyem,&nbsp;Md. Khalid Saifullah,&nbsp;Israt Jahan,&nbsp;Gourab Chowdhury,&nbsp;Mst. Afifa Khatun,&nbsp;Mohammad Toha,&nbsp;Md. Mostafizur Rahman,&nbsp;Roksana Huque,&nbsp;Mohammad Amzad Hossain,&nbsp;Muhammad Anamul Kabir,&nbsp;Mohammed Mahbub Iqbal","doi":"10.1155/are/5591001","DOIUrl":"https://doi.org/10.1155/are/5591001","url":null,"abstract":"<div>\u0000 <p>The rise of microplastics (MPs) as a significant environmental contaminant has raised concerns about their potential presence in aquatic ecosystems and food webs. The current study aimed to evaluate the properties and frequency of MPs in Bangladeshi commercial fish feed, a vital aquaculture sector component. Twenty-one commercial fish feed samples representing three distinct grades (starter, nursery, and grower) and seven commercial formulations were tested. Standard digestion, density separation, and filtering techniques were used to extract MPs. The findings demonstrated that all the samples had extensive MPs contamination, with an average concentration of 9.23–14.27 MPs per gram of feed. Grower feeds have the lowest frequency of MPs, while starter feeds show highest MP abundance. The most abundant forms were fibers (45.44%), followed by fragments (36.30%) and microbeads (18.26%). The most frequently occurring colors were black (33.30%), transparent (27.37%), and blue (13.63%). The most dominant group of MPs was &lt;300 µm (52.36%). Polystyrene (PS) and ethylene–vinyl acetate (EVA) were found to be the predominant polymers, making up 32.12% and 23.85% of the total MPs, respectively, based on Attenuated Total Reflection Fourier Transform Infrared Spectroscopy. Nitrile butadiene rubber (NBR) indicated low hazard, while low-density polyethylene (LDPE) medium, polymethyl methacrylate (PMMA), polycarbonate (PC), and acrylonitrile butadiene styrene (ABS) indicated very high hazard. In addition, fish feed samples remained at low risk as specified by the Pollution Load Index (PLI). Given the possible dangers to fish health, human consumption, and environmental sustainability, this study emphasizes the urgent need for mitigation techniques to minimize MP contamination in aquafeeds.</p>\u0000 </div>","PeriodicalId":8104,"journal":{"name":"Aquaculture Research","volume":"2025 1","pages":""},"PeriodicalIF":1.9,"publicationDate":"2025-06-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1155/are/5591001","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144300349","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Transcriptome Analysis Highlights Key Differentially Expressed Genes Involved in Autolysis Process in Polychaete Perinereis aibuhitensis","authors":"Qing Nie,&nbsp;Shengjie Ren,&nbsp;Bin Geng,&nbsp;Fu Lv,&nbsp;Zhitao Qi,&nbsp;Jian Gao,&nbsp;JinYin Wang,&nbsp;Fengjuan Jiang,&nbsp;Jinghui Fang","doi":"10.1155/are/3801152","DOIUrl":"https://doi.org/10.1155/are/3801152","url":null,"abstract":"<div>\u0000 <p><i>Perinereis aibuhitensis</i> belongs to Annelida, Polychaeta, and mainly lives in intertidal zones along the coast of China and several Southeast Asian countries. The <i>P. aibuhitensis</i> has a similar autolysis phenomenon to sea cucumbers, both of which belong to predeath autolysis. This study aimed to investigate the autolysis pathway and reveal the autolysis mechanisms of <i>P. aibuhitensis</i>. The second-generation transcriptomes of the <i>P. aibuhitensis</i> at different stages of autolysis were sequenced and analyzed and the authenticity of the transcriptomic data was verified by real-time fluorescence quantitative PCR (RT-qPCR). A total of 78,653 unigenes were obtained after sequencing, including 1495 differentially expressed genes (DEGs) in the P0h vs. P72hDS (drilled sandworms) groups, 1995 DEGs in the P0h vs. P72hUD (undrilled sandworms) groups and 34 DEGs in the P72hDS vs. P72hUD. The DEGs were mainly concentrated in ECM–receptor interaction (collagen alpha-5[IV], collagen alpha-1[I], agrin), apoptosis-multiple species (caspase-7, bcl-2, baculoviral IAP repeat-containing protein 5-like, septin-5), arachidonic acid (AA) metabolism pathways (carbonyl reductase [NADPH] 1, glutathione (GSH) peroxidase-like, thromboxane-A synthase, secretory phospholipases A2) and metabolism of xenobiotics by cytochrome P450 (CYP450; glucuronosyltransferase, GSH S-transferase, CYP450 family 1 subfamily A1, teroid 17-alpha-hydroxylase, alcohol dehydrogenase). These DEGs were related to cell morphology, cell apoptosis, antioxidant defense response, material and energy metabolism, nerve and muscle damage, etc. In addition, endogenous proteases such as HYAL1 and matrix metalloproteinase-9 (MMP9) were also found to have significant differences between P0h and P72h groups. Four DEGs were screened and subjected to RT-qPCR detection, which confirmed the accuracy of the transcriptome results and also suggested that these genes were closely related to autolysis in <i>P. aibuhitensis</i>. All these results provide a basis for the study of the autolysis process and related genes in <i>P. aibuhitensis</i> and also contribute to the study of the autolysis mechanism in other marine animals.</p>\u0000 </div>","PeriodicalId":8104,"journal":{"name":"Aquaculture Research","volume":"2025 1","pages":""},"PeriodicalIF":1.9,"publicationDate":"2025-06-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1155/are/3801152","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144273441","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Effects of Dietary Supplementation of Euphorbia hirta on the Growth Performance, Serum Biochemistry, Antioxidative Status, and Immune Response of Clarias gariepinus","authors":"Olarinke V. Adeniyi,&nbsp;Sajjad Pourmozaffar,&nbsp;Seyramsarah B. Setufe,&nbsp;Ibrahim Adeshina","doi":"10.1155/are/5208865","DOIUrl":"https://doi.org/10.1155/are/5208865","url":null,"abstract":"<div>\u0000 <p>The medicinal herb <i>Euphorbia hirta</i> is abundantly available and exhibits impressive biological properties. This study looked at how dietary <i>E. hirta</i> extract (EHE) affected <i>Clarias gariepinus</i> growth, biochemistry, antioxidant status, immunological response, and resistance to <i>Aeromonas hydrophila</i> (AE) infection. Five isonitrogenous diets of 40% crude protein were prepared to contain 0.0, 0.5, 1.0, 1.5, or 2.0 g EHE/kg feed. Fish (<i>n</i> = 450; mean = 6.60 g) were randomly distributed to 15 500-L aquaria (30 fish/aquarium; 100 cm × 100 cm × 60 cm, length × width × height) and fed thrice (07:00, 12:00, and 17:00 h) daily with experimental diets for 12 weeks until apparent satiation. Fish guts and blood samples were taken from the fish to measure antioxidant parameters, serum biochemical parameters, and intestinal morphometry. After the feeding trial, the fish received an intraperitoneal injection of pathogenic AE and were monitored for 14 days. Blood samples were taken for the immune response testing following the 14-day challenge test. With a 0.5 g/kg diet, dietary EHE improved weight gain (WG), specific growth rate (SGR), villi height, and FCR. Blood proteins, urea nitrogen, and creatinine were unaffected, although alkaline phosphatase (ALP) concentrations appeared to decrease as the EHE inclusion levels increased. Fish-fed EHE-based diets showed increased activity of the serum antioxidant enzymes glutathione (GSH)-s-transferase (GST),GSH peroxidase (GPx), and superoxide dismutase (SOD). In the challenged fish-fed EHE-supplemented diets, respiratory burst, and lysozyme activity were increased, with the highest relative survival (RS) occurring at 0.5 g EHE/kg diet. In conclusion, this study found that 0.5 g EHE has growth-promoting, antioxidant, and immune-stimulating effects in <i>C. gariepinus</i> against AE infection, hence its inclusion at this level is advised.</p>\u0000 </div>","PeriodicalId":8104,"journal":{"name":"Aquaculture Research","volume":"2025 1","pages":""},"PeriodicalIF":1.9,"publicationDate":"2025-06-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1155/are/5208865","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144273442","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Sustainable Rice–Fish Farming Systems: A Systematic Review and Meta-Analysis","authors":"Franklin Fernandez-Zatrate,&nbsp;Luis Pérez-Delgado,&nbsp;David Coronel-Bustamante,&nbsp;Leisy Huanca-Silva,&nbsp;Victor H. Taboada-Mitma,&nbsp;Mariela Quispe-Carhuapoma,&nbsp;Yashira Oliva-Alvarez,&nbsp;Maximo Ramirez-Antaurco,&nbsp;Janella Anchayhua-Torres,&nbsp;Annick Estefany Huaccha-Castillo,&nbsp;Alejandro Seminario-Cunya,&nbsp;Daniel Tineo-Flores,&nbsp;Darwin Gomez-Fernandez,&nbsp;Malluri Goñas-Goñas,&nbsp;Juancarlos Cruz-Luis","doi":"10.1155/are/4029275","DOIUrl":"https://doi.org/10.1155/are/4029275","url":null,"abstract":"<div>\u0000 <p>The rice–fish farming system is an efficient ecological model with economic, ecological, and social benefits, reduces environmental impacts and optimizes the use of resources. The objective of the research was to explore and analyze scientific publications through a systematic review and meta-analysis related to rice–fish intercropping. A review of publications hosted in the Scopus and PubMed database from January 2000 to April 2025 was conducted. Research articles were selected, excluding review articles, com-mentaries, book chapters, and letters, and only documents published in English were analyzed. The analysis shows that the countries with the highest number of publications were China and Bangladesh, with a proportion of 48% and 24% respectively, followed by Thailand with 10% and Pakistan, Indonesia, Malaysia, and India with 5% each. The fish species used in rice–fish systems were reported to be <i>Cyprinus carpio</i> (37%), <i>Oreochromis niloticus</i> (29%), <i>Barbonymus gonionotus</i>, <i>Micropterus salmoides and Pelteobagrus fulvidraco</i> (8%), <i>Amblypharyngodon mola</i> (5%), and <i>Labeo rohita and Monopterus albus</i> (3%). On average, fish settle in the rice–fish system 27 days after rice planting, with a density of 13,390 fish/ha. Between rice planting and harvesting 132 days pass, obtaining an average yield of 4397 kg of rice/ha and 1383 kg of fish/ha. It is recommended to prioritize integrated research on unstudied fish species, optimal densities, fertilization, culture models, and emerging technologies in rice–fish systems, considering regional variations to improve sustainability, productivity, and food security at a global level.</p>\u0000 </div>","PeriodicalId":8104,"journal":{"name":"Aquaculture Research","volume":"2025 1","pages":""},"PeriodicalIF":1.9,"publicationDate":"2025-06-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1155/are/4029275","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144264553","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Research Trends on Antimicrobial Peptides in Aquaculture: A Thematic and Bibliometric Analysis","authors":"Meihua Zhu,&nbsp;Yangping Liu,&nbsp;Bei Huang,&nbsp;Wenshu Huang","doi":"10.1155/are/4375783","DOIUrl":"https://doi.org/10.1155/are/4375783","url":null,"abstract":"<div>\u0000 <p>The emergence of antimicrobial resistance has become a critical concern in aquaculture. Antimicrobial peptides (AMPs), a class of small, natural or synthetic peptides that protect hosts from microbial infections, offer a promising alternative to traditional antibiotics. To evaluate the current status and research trends of AMP in aquaculture, we conducted a bibliometric analysis of 1956 publications (from 1990 to 2024) retrieved from the Web of Science, using the Bibliometrix R package and CiteSpace. The results showed that the study of AMPs in aquaculture has entered a phase of rapid development since 2015, marked by exponential growth of publications. Chinese research institutions and scholars have played a leading role, contributing over one-third of all publications. However, their involvement in multicountry collaborations remains significantly lower than that of other countries, highlighting the need for enhanced international collaboration. Thematic evolution analysis based on keywords reveals a shift in research focus from gene cloning and antibacterial activities to mechanisms of action and practical applications. Overall, this bibliometric study offers a comprehensive overview of the current landscape, research hotspots, and future directions of AMP research in aquaculture, providing valuable insights for advancing the field.</p>\u0000 </div>","PeriodicalId":8104,"journal":{"name":"Aquaculture Research","volume":"2025 1","pages":""},"PeriodicalIF":1.9,"publicationDate":"2025-06-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1155/are/4375783","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144264554","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Medicinal Plants as Ecological Solutions for Fish Growth and Immunostimulatory Effects in Aquaculture","authors":"Sahr Lamin Sumana,&nbsp;Ting Xue,&nbsp;Honghui Hu,&nbsp;Mukhtar Muhammad Abdullateef,&nbsp;Yan Shui,&nbsp;Gelana Urgesa Ayana,&nbsp;John Cosmos Kayiira,&nbsp;Chengfeng Zhang,&nbsp;Bakari Jackson Samwel,&nbsp;Jian Zhu,&nbsp;Shengyan Su,&nbsp;Annor Ebenezer,&nbsp;Emmanuel Bob Samuel Simbo,&nbsp;Jing Xiaojun","doi":"10.1155/are/9778623","DOIUrl":"https://doi.org/10.1155/are/9778623","url":null,"abstract":"<div>\u0000 <p>The growing global interest in sustainable aquaculture has led to an increased search for alternatives to synthetic antibiotics and chemical feed additives. Medicinal plants have surfaced as promising ecological solutions, with research showing their potential to improve fish growth, boost immunity, and enhance disease resistance while decreasing the need for antibiotics. Recent studies suggest that supplementing fish diets with medicinal plants may improve survival rates. This supplementation upregulates key immune-related gene responses, including cytokines such as interleukin (IL)-1<i>β</i> and tumor necrosis factor-alpha (TNF-<i>α</i>), as well as lysozyme (LYZ and LZM genes) and immunoglobulins (IgM, IgT, and IgD). As a result, innate and adaptive immune responses can be enhanced depending on the species and dosage. Furthermore, certain plant-derived compounds have shown antimicrobial properties similar to traditional antibiotics, reducing pathogen loads by more than 50%. This review examines the role of medicinal plants in aquaculture, highlighting their effects on immunity, antimicrobial activity, and growth promotion. It delves into the mechanisms involved, such as the modulation of cytokine expression, enhancement of antioxidant defenses, and regulation of gut microbiota. However, challenges like variable phytochemical composition, the need for optimal dosages, and regulatory issues limit their broader use. While previous reviews have addressed the use of medicinal plants in aquaculture, few have thoroughly examined their dual role in both enhancing fish health and contributing to ecological functions such as improving water quality and promoting climate resilience. This review aims to fill that critical knowledge gap by integrating these dimensions highlighting how medicinal plants serve not only as bioactive growth promoters and immune enhancers but also as ecological tools for fostering environmental sustainability in aquaculture systems. Incorporating medicinal plants into aquaculture could potentially reduce antibiotic use by up to 50% by 2050, aligning with global efforts toward sustainable and eco-friendly fish production. Innovations in phytochemical profiling, nanotechnology-based delivery systems, and next-generation sequencing are anticipated to further enhance the effectiveness and standardization of plant-based aquafeeds. This comprehensive framework offers new insights into the development of resilient and environmentally responsible aquaculture practices, particularly in the face of climate change.</p>\u0000 </div>","PeriodicalId":8104,"journal":{"name":"Aquaculture Research","volume":"2025 1","pages":""},"PeriodicalIF":1.9,"publicationDate":"2025-06-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1155/are/9778623","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144214033","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Indigenous Probiotics Weissella cibaria and Saccharomyces cerevisiae on Growth, Microbial Population, and Survival of Pacific White Shrimp (Penaeus vannamei) Challenged With Vibrio parahaemolyticus (AHPND Strains)","authors":"Pochanart Kanjan,&nbsp;Apisit Kimtun,&nbsp;Saweit Chaimongkol,&nbsp;Naraid Suanyuk","doi":"10.1155/are/9910236","DOIUrl":"https://doi.org/10.1155/are/9910236","url":null,"abstract":"<div>\u0000 <p>The present study aims to evaluate the growth, gut microbiota, and survival rate (SR) of Pacific white shrimp by using individual or combined indigenous probiotics (<i>Weissella cibaria</i> and <i>Saccharomyces cerevisiae</i>) mixed with diet for a period of 42 days. Four different experimental diet preparations include a control diet (CON) without probiotics, a control diet containing an individual strain of either <i>W. cibaria</i> KY10 (W) or <i>S. cerevisiae</i> S11 (Y), and a combination of the above probiotics in a 10⁷ CFU/g diet (WY). The results indicated that shrimp diets containing individual or combined probiotics showed significant differences (<i>p</i> &lt; 0.05) in shrimp growth and stimulated the nonspecific immune system (total hemocyte cells). In addition, nonfermenting <i>Vibrio</i> significantly decreased from 6.01 to 4.92 log CFU/g in probiotic diets when compared with the control diet (<i>p</i> &lt; 0.05). Seven days after immersion with <i>Vibrio parahaemolyticus</i> (acute hepatopancreatic necrosis (AHPND)), a SR of 96.67% was detected in an individual or combined probiotic-supplemented feed, while only 56.67% survival was found in the control. Microbial analysis revealed that the phyla of Proteobacteria and Firmicutes were the majority of bacteria in Pacific white shrimp, but Verrucomicrobia was less abundant in the <i>W. cibaria</i> group compared with the control. At the genus level, the opportunistic pathogenic bacteria, such as <i>Vibrio</i> species, decreased, whereas the beneficial bacteria <i>Halocynthiibacter</i>, <i>Weissella</i>, and <i>Ruegeria</i> species increased when <i>W. cibaria</i> was supplemented. These data demonstrated that supplementation with <i>W. cibaria</i> and <i>S. cerevisiae</i>, either individually or combined, can improve the health status of Pacific white shrimp.</p>\u0000 </div>","PeriodicalId":8104,"journal":{"name":"Aquaculture Research","volume":"2025 1","pages":""},"PeriodicalIF":1.9,"publicationDate":"2025-06-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1155/are/9910236","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144206876","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"The Effects of Different Dietary Protein Levels and Feeding Rations on Water Quality and Growth Performance of Pacific White Shrimp (Litopenaeus vannamei) Reared in Individual Biofloc Culture Systems","authors":"Shrijan Bajracharya,&nbsp;Geraldo K. Foes,&nbsp;Luke A. Roy,&nbsp;Julio C. García,&nbsp;D. Allen Davis","doi":"10.1155/are/9447598","DOIUrl":"https://doi.org/10.1155/are/9447598","url":null,"abstract":"<div>\u0000 <p>Dietary protein is one of the most expensive feed components and an important determinant in the growth of the Pacific white shrimp (<i>Litopenaeus vannamei</i>). Therefore, understanding the interaction between dietary protein levels and daily protein intake, which drives the shrimp’s growth, is crucial. An 8-week growth trial was conducted to examine the effect of dietary protein levels offered at different percentages of standard ration on water quality and growth response of <i>L. vannamei</i> reared in individual biofloc systems, each containing 800 L of culture water stocked at 88 shrimp/m³. Four diets with crude protein (CP) levels of 25%, 30%, 35%, and 40% fed at the standard feeding rate (100%) were used for this experiment. Additionally, 25% CP and 30% CP diets were also fed at 140% and 116.7%, respectively, of the standard feeding rate (equivalent to 35% CP) as the other two treatments. This resulted in six treatments with four replicates per treatment, which were randomly assigned to the tanks. At the end of the trial, significant differences (<i>p</i>  &lt; 0.05) in growth and feed conversion ratio (FCR) were observed. Results showed that the increase in CP content of the feed resulted in an increased final mean weight and weight gain. The shrimp fed with a 40% CP diet at 100% standard ration had the highest final mean weight (15.38 g), weight gain/week (1.61 g/week), weight gain percentage (523.63%), and the lowest FCR (1.26). Whereas feeding lower protein diets at higher rations (25% and 30% CP at 140% and 116.7% of the standard ration, respectively) did not lead to significant growth improvements but resulted in a higher FCR, indicating potential overfeeding. This trial demonstrated that shrimp raised in the biofloc system performed better in terms of growth and feed utilization as protein intake increased.</p>\u0000 </div>","PeriodicalId":8104,"journal":{"name":"Aquaculture Research","volume":"2025 1","pages":""},"PeriodicalIF":1.9,"publicationDate":"2025-06-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1155/are/9447598","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144206757","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Different Rearing Densities in Triploid Rainbow Trout (Oncorhynchus mykiss): Effects on Growth, Stress and Immune Responses, and Antioxidant Activity","authors":"Sajad Mami,&nbsp;Javad Cheraghi,&nbsp;Mahdi Naderi,&nbsp;Amir Parviz Salati","doi":"10.1155/are/5576502","DOIUrl":"https://doi.org/10.1155/are/5576502","url":null,"abstract":"<div>\u0000 <p>The optimal rearing density (RD) enhances fish performance, but there is little information about the effect of rearing densities(RDs) on triploids. This research aimed to estimate the impacts of RDs on the growth, immunity, and antioxidant activity of triploid rainbow trout. A total of 1071 fish (35.16 ± 1.10 g) were randomly stocked into 18 fiberglass tanks and divided into six groups based on RD, including 10, 20, 30, 40, 50, and 60 kg/m³. After 70 days, final weight, weight gain rate (WGR), specific growth rate (SGR), and protein efficiency ratio (PER) were significantly higher and feed conversion ratio (FCR) was significantly lower in rainbow trout reared at 20, 30, and 40 kg/m³ in comparison with fish reared at 50 and 60 kg/m³ (<i>p</i> &lt; 0.05). Serum cortisol level was highest in fish reared at 60 kg/m³, then RD50 group, and lower in other groups; cortisol level of RD20 and RD30 groups was also significantly lower than the RD10 fish (<i>p</i> &lt; 0.05). Moreover, serum lactate level was significantly higher and serum total antioxidant capacity (TAOC) and lysozyme activity and liver superoxide dismutase (SOD) activity were significantly decreased in fish reared at 50 and 60 kg/m³ compared to 20, 30, and 40 kg/m³ (<i>p</i> &lt; 0.05). Serum osmolality and total immunoglobulin content and liver catalase (CAT) and glutathione peroxidase (GPx) activities were significantly decreased in fish reared at 10, 50, and 60 kg/m³ compared to other groups (<i>p</i> &lt; 0.05). Serum alternative complement (ACH50) activity and globulin content were also significantly lower in RD50 and RD60 groups compared to the other groups (<i>p</i> &lt; 0.05). In addition, liver malondialdehyde (MDA) content was highest in RD60 group, then RD50, followed by RD10, and lowest in other groups. Overall, the optimal RDs for juvenile triploid rainbow trout can be suggested to the fish farmers at intermediate densities of 20–40 kg/m³.</p>\u0000 </div>","PeriodicalId":8104,"journal":{"name":"Aquaculture Research","volume":"2025 1","pages":""},"PeriodicalIF":1.9,"publicationDate":"2025-06-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1155/are/5576502","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144206602","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Comparative Study on the Growth, Proximate, and Amino Acid Profile of Edible Oysters Cultivated in Indoor and Outdoor Conditions","authors":"Mohammad Ekramul Haque,&nbsp;Mahima Ranjan Acharjee,&nbsp;Subeda Newase,&nbsp;Sifatun Nur,&nbsp;Trina Das,&nbsp;Sadia Afrin,&nbsp;Tashrif Mahmud Minhaz,&nbsp;Zahidul Islam,&nbsp;Helena Khatoon","doi":"10.1155/are/9668918","DOIUrl":"https://doi.org/10.1155/are/9668918","url":null,"abstract":"<div>\u0000 <p>A feeding trial was conducted to assess the impact of a microalgal diet and a natural diet on the growth performance, water quality, nutrition, and survival of the edible oyster, <i>Saccostrea cucullata</i>. Four experimental diets, designated as “Chl” (100% <i>Chlorella vulgaris</i>), “Chaeto” (100% <i>Chaetoceros gracilis</i>), “Chl + Chaeto” (50% <i>C. vulgaris</i> + 50% <i>C. gracilis</i>), and “Outdoor” (natural diet), were used to develop the treatments. The growth performance and survival of oysters were evaluated by measuring initial and final weights and counts, alongside daily water quality monitoring, weekly chemical analysis, and nutritional composition analysis of muscle tissue at the end of the experiment. The treatments fed with microalgae showed significantly better growth performance, higher survival, and improved water quality parameters compared to the outdoor treatment (<i>p</i> &lt; 0.05). Multivariate analysis revealed that salinity, total dissolved solid (TDS), conductivity, and dissolved oxygen (DO) positively influenced oyster growth, while temperature, ammonia, and soluble reactive phosphorous (SRP) showed negative associations. Additionally, protein content (29.1%–30.7%) showed no significant difference among treatments, while lipid (11.1%–18.2%) and carbohydrate (30.6%–36.2%) levels varied significantly (<i>p</i> &lt; 0.05), with the highest values in the “Chl + Chaeto” treatment. Moreover, essential amino acids (EAAs) and non-essential amino acids (NEAAs) varied significantly (<i>p</i> &lt; 0.05), with EAAs higher in monoalgal (“Chl” and “Chaeto”) diet, and NEAAs higher in mixed and outdoor treatments. These findings highlight the potential of microalgal diets, particularly monoalgal formulations, in enhancing the nutritional quality and overall performance of cultured <i>S. cucullata</i>.</p>\u0000 </div>","PeriodicalId":8104,"journal":{"name":"Aquaculture Research","volume":"2025 1","pages":""},"PeriodicalIF":1.9,"publicationDate":"2025-06-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1155/are/9668918","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144197237","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}