Journal of The World Aquaculture Society最新文献

{"title":"Enhancing tilapia intestinal health and growth: Response surface methodology-optimized Schizochytrium limacinum and Lactococcus lactis supplementation","authors":"Yan Wang,&nbsp;Wei Tang,&nbsp;Siming Chen,&nbsp;Zichen Zhao,&nbsp;Qingqin Huang,&nbsp;Jianlong Li,&nbsp;Chuan Lin,&nbsp;Hengwei Deng,&nbsp;Zhihong Zhong,&nbsp;Weiliang Guo,&nbsp;Shifeng Wang,&nbsp;Yun Sun,&nbsp;Yongcan Zhou","doi":"10.1111/jwas.13126","DOIUrl":"https://doi.org/10.1111/jwas.13126","url":null,"abstract":"<p>To improve the growth of genetically improved farmed tilapia (GIFT), the supplementation of <i>Schizochytrium limacinum</i> and <i>Lactococcus lactis</i> was sequentially optimized by a single-factor method and central composite design combined with response surface methodology (CCD-RSM) using a developed desirability function (<i>Df</i>) as the response value. The optimum supplementary prescriptions obtained by the single-factor method and CCD-RSM were alone 1.5% <i>S. limacinum</i>, alone 1 × 10⁷ CFU/g <i>L. lactis</i>, and 1.22% <i>S. limacinum</i> + 4.01 × 10⁷ CFU/g <i>L. lactis</i> respectively. The <i>Df</i> of the tilapia fed with the diets supplemented with these optimum prescriptions were 0.53, 0.54, and 0.61, respectively. The <i>Df</i>, weight gain rate (<i>WGR</i>), and feed conversion rate (<i>FCR</i>) of the tilapia fed with the optimum prescriptions obtained by CCD-RSM were significantly higher than those of the tilapia fed with the diets obtained by single-factor experiments and the basic diet for 28 days. Furthermore, the results of CCD-RSM can show that there were significant interactive effects between <i>S. limacinum</i> and <i>L. lactis</i> on trypsin, α-amylase, lipase, total cholesterol (<i>TC</i>)⁻¹ and low-density lipoprotein cholesterol (<i>LDL-C</i>)⁻¹, and <i>Df</i>, but those of single-factor method cannot.</p>","PeriodicalId":17284,"journal":{"name":"Journal of The World Aquaculture Society","volume":"56 1","pages":""},"PeriodicalIF":2.3,"publicationDate":"2025-01-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1111/jwas.13126","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143116084","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"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":"Fish protein hydrolysates from rainbow trout processing in replacement of feed protein sources: Effects on growth performances, liver status and body composition of gilthead sea bream, Sparus aurata L., juveniles","authors":"Roberto Cappuccinelli,&nbsp;Elisa Fiordelmondo,&nbsp;Gian Enrico Magi,&nbsp;Francesca Mariotti,&nbsp;Manuela Sanna,&nbsp;Livio Galosi,&nbsp;Tonina Roggio,&nbsp;Alessandra Roncarati","doi":"10.1111/jwas.13100","DOIUrl":"https://doi.org/10.1111/jwas.13100","url":null,"abstract":"<p>The use of processing by-products may reduce pressure on fish stocks as well as diminish wastes and negative environmental impact. Different studies investigated fish by-products used as alternative nutritional source to conventional feedstuffs. Fish protein hydrolysates (FPH), as a protein source derived from discards of rainbow trout processing, were included in feeds and effects were evaluated on productive performances, liver status, and body composition in gilthead sea bream, <i>Sparus aurata</i> L., juveniles. Three groups of 170 juveniles each (initial weight 37.8 ± 0.5 g), in triplicate indoor tanks of 2 m³ volume each, were fed including FPH in L1 (7.5 g/kg) and L2 (15 g/kg) feeds in replacement of fishmeal. LC diet was used as control having fish meal and soybean meal as main protein sources. At the end of the trial (85 days), satisfactory productive performances were obtained in all the groups with similar performances. The final mean weight ranged from 76.6 to 78.0 g. The two FPH diets exhibited high palatability equal to LC. Liver histology did not differ although fat accumulation was detected in all fish. Body composition and fatty acids were similar. FPH as substitute of protein source is suitable in the feeding of gilthead sea bream juveniles.</p>","PeriodicalId":17284,"journal":{"name":"Journal of The World Aquaculture Society","volume":"56 1","pages":""},"PeriodicalIF":2.3,"publicationDate":"2025-01-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1111/jwas.13100","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143115690","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"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":"Identification, cellular localization, and function analysis of a novel toll-like receptor (PtToll4) in Portunus trituberculatus","authors":"Hao Liu,&nbsp;Feng-Ling Shu,&nbsp;Dan-Feng Zhang,&nbsp;Fei Yin,&nbsp;Su-Ming Zhou","doi":"10.1111/jwas.13125","DOIUrl":"https://doi.org/10.1111/jwas.13125","url":null,"abstract":"<p>Toll-like receptor (TLR) is one of the most important pattern recognition receptors in both invertebrate and vertebrate animals. In previous study, three different kinds of TLR cDNAs (<i>Pt</i>Toll1-3) have been cloned from <i>Portunus trituberculatus</i>. In this study, a novel <i>Pt</i>Toll4 cDNA sequence was identified in this crab. The <i>Pt</i>Toll4 ORF is predicted to encode 894 peptides with an initiating signal peptide, an extracellular LRRs domain, a transmembrane region, and an intracellular toll-interleukin-1 receptor domain. Based on the sequence and phylogenetic analysis, <i>Pt</i>Toll4 distinctly clustered with almost all crustacean tolls, which mostly clustered with some shrimp TLRs and <i>Eriocheir sinensis</i> Toll 2 (<i>Es</i>Toll 2). The real-time quantitative polymerase chain reaction analysis showed that the transcript of <i>Pt</i>Toll4 was constitutively expressed in tissues. In hemocytes, the transcript of <i>PtToll4</i> in large granulocytes is approximately threefold higher than in small granulocytes and hyalocytes. Moreover, the expression of <i>Pt</i>Toll4 could be moderately and shortly upregulated by <i>Vibrio alginolyticus</i> or lipopolysaccharide challenge in the primary cultured hemocytes. In HEK 293T cell model, over-expressed <i>Pt</i>Toll4 was not able to activate the mammal NF-κB, compared with a positive plasmid. In the <i>Drosophila</i> S2 cell model, over-expressed <i>Pt</i>Toll4 distributed mainly in cell membrane and could affect the activation of some <i>Drosophila</i> antimicrobial peptides promoters. The RNA interference experiment showed that the expressions of <i>PtToll4</i> was significantly inhibited by its specific double-stranded RNA in the crab hemocytes and accompanied by the suppressed expressions of the anti-lipopolysaccharide factor 4 (ALF4), ALF7, hyastatin3, crustin1, and crustin3.</p>","PeriodicalId":17284,"journal":{"name":"Journal of The World Aquaculture Society","volume":"56 1","pages":""},"PeriodicalIF":2.3,"publicationDate":"2025-01-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1111/jwas.13125","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143114544","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"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 and design of distributed intelligent electronic pulse barring facility","authors":"Mingwu Wang,&nbsp;Weiheng Chen,&nbsp;Fan Yang,&nbsp;Yingxuan Liang","doi":"10.1111/jwas.13121","DOIUrl":"https://doi.org/10.1111/jwas.13121","url":null,"abstract":"<p>Because traditional barring facilities have difficulty in controlling the water surface and have low intelligence degree, a new type of intelligent electronic pulse barring facility was developed. The system established a dynamic charging and discharging model, an electric field strength calculation model, and a forward reverse rotation conduction model. The facility used a controller area network field bus to realize cooperative operation between one master machine and multiple slave machines that was suitable for fish blocking in various water areas. By using insulated gate bipolar transistors instead of thyristors, the electrode adopted an instantaneous rotational conduction mechanism that was efficient, safe, reliable, and resulted in low noise pollution. The system realized the application of the Internet of Things and an automatic fault phone alarm function in the aquaculture industry such that users could use phones or computers for real-time remote monitoring. A failure of the fish barring facility would immediately trigger an alarm, such that corresponding measures could be taken to avoid the escape of many fish and complete the unattended aquaculture industry. After multiple freshwater fish arresting tests, the load capacity of the whole machine was 0.5 Ω, and the power consumption was 0.3–2 kW; this could save 65% more electricity than traditional thyristors and had a maximum interception area of 1200 m². This has significant practical application value in improving the digitalization, automation, and intelligence level of the aquaculture industry.</p>","PeriodicalId":17284,"journal":{"name":"Journal of The World Aquaculture Society","volume":"56 1","pages":""},"PeriodicalIF":2.3,"publicationDate":"2025-01-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1111/jwas.13121","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143112016","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"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":"Reconfiguring innovation systems for sustainable sectoral transformation: The case of the Norwegian aquaculture industry","authors":"Samson Afewerki,&nbsp;Marit Schei Olsen,&nbsp;Tonje Osmundsen,&nbsp;Kristine Størkersen,&nbsp;Andreas Misund,&nbsp;Trine Thorvaldsen","doi":"10.1111/jwas.13124","DOIUrl":"https://doi.org/10.1111/jwas.13124","url":null,"abstract":"<p>This article aims to shed light on the recent sustainable transformation dynamics of the Norwegian aquaculture industry. Drawing on perspectives from the socio-technical transition studies this article investigates how this process has been shaped by a specific policy instrument known as development licenses (DL) launched in 2015. The article captures the DL as a transformative innovation policy instrument and shows how this has played a key role in steering the directionality of the technological innovations in the sector to instigate the sustainable transformation process of the industry. The article reveals that the DL has prompted the emergence of new challenged-oriented innovation systems through reorientation and reconfiguration processes. These processes specifically involved both the mobilization of actor-networks in the industry, including a functional reorientation by the key regulatory organ—the Directorate of Fisheries—and harnessing locally available pre-existing knowledge and skills—particularly in the Petro-maritime industry. The licensing scheme means that the industry is currently in the process of transition to becoming a sector based on multiple aquaculture production technologies. However, we suggest that addressing the long-term sustainable transformation imperatives of the sector will largely depend upon the ability to identify and support further development of promising niche aquaculture technologies.</p>","PeriodicalId":17284,"journal":{"name":"Journal of The World Aquaculture Society","volume":"56 1","pages":""},"PeriodicalIF":2.3,"publicationDate":"2025-01-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1111/jwas.13124","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143112090","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"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":"Effect of carryover biomass of channel catfish on production and profitability in intensively aerated multiple-batch system","authors":"Ganesh Kumar,&nbsp;Shraddha Hegde,&nbsp;Suja Aarattuthodi,&nbsp;Brian Bosworth,&nbsp;Lianqun Sun,&nbsp;Nathanial Steensma","doi":"10.1111/jwas.13123","DOIUrl":"https://doi.org/10.1111/jwas.13123","url":null,"abstract":"<p>Multiple-batch production is the most common farming strategy for raising channel catfish. Increased adoption of intensified alternative production practices has changed the cost structure of many catfish production practices including multiple-batch systems. Production efficiency in multiple-batch production can be enhanced by providing optimal stocking recommendations for fingerlings and carryover fish. Twelve 0.4-ha ponds were understocked with 20,782 channel catfish fingerlings (mean weight = 30 g/fish) at three different carryover biomass rates (3440; 4580; and 5702 kg/ha). Fish were fed once daily to apparent satiation with a 28% protein floating feed, and ponds were aerated with a 7.4-kW electric paddlewheel aerator. Gross, net, daily net yields, sub-marketable yields (&lt;0.54 kg), growth (g/day), and survival were statistically similar among the three treatments, but yield of marketable fish yield (fish ≥0.54 kg) increased significantly with increased carryover biomass. The cost of production was reduced while net returns increased with increased carryover biomass. The lowest carryover biomass treatment (3440 kg/ha) had negative cash flow and net returns when sub-marketable fish were not assigned value. However, all three carryover biomass treatments attained positive annual net cash flows and net returns when sub-marketable fish were valued as revenue, the two higher carryover biomass treatments (4580 and 5702 kg/ha) outperformed the low carryover biomass treatment (3440 kg/ha). This study indicates channel catfish carryover biomass rates should be between 4580 and 5702 kg/ha to improve cost efficiency in intensively aerated, multiple-batch production systems.</p>","PeriodicalId":17284,"journal":{"name":"Journal of The World Aquaculture Society","volume":"56 1","pages":""},"PeriodicalIF":2.3,"publicationDate":"2025-01-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1111/jwas.13123","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143110809","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"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 differences in intestinal microbiota between common and orange-muscle of Haliotis gigantea and dietary influences on abalone's intestinal microbiota","authors":"Xiaohui Wei,&nbsp;Wencui Zeng,&nbsp;Bin Tang,&nbsp;Miaoqin Huang,&nbsp;Xuan Luo,&nbsp;Caihuan Ke","doi":"10.1111/jwas.13118","DOIUrl":"https://doi.org/10.1111/jwas.13118","url":null,"abstract":"<p>Compared with common abalone, the orange-muscle abalone (<i>Haliotis gigantea</i>) has an enhanced ability to accumulate carotenoids. Feeding on asparagus (<i>Gracilaria lemaneiformis</i>) was critical for maintaining carotenoid contents in <i>H. gigantea</i> muscles. However, whether intestinal microbes play the role in carotenoid accumulation in different colored abalone, and the effects of different diets on intestinal microbes in abalone are unknown. In the study, the differences in intestinal microbiota between abalone with different colors and the effects of different diets on the intestinal microbiota of the abalone were analyzed. The results showed that (1) there was no significant difference in intestinal microbial community composition between the orange-muscle abalone and the common abalone, and (2) the intestinal microbial community composition of abalone fed on asparagus was significantly different from that of abalone fed on kelp (<i>Laminaria japonica</i>). At the genus level, the relative abundance of <i>Psychrilyobacter</i> in the intestinal tract of abalone fed with asparagus was significantly higher than that of kelp-fed groups. <i>Stenotrophomonas</i> and <i>Vibrio</i> were the dominant bacteria at the genus level in abalone fed with the kelp. This result excluded the role of intestinal microbes in different colored abalone and provided clues for further study of the coloration mechanism of abalone.</p>","PeriodicalId":17284,"journal":{"name":"Journal of The World Aquaculture Society","volume":"56 1","pages":""},"PeriodicalIF":2.3,"publicationDate":"2025-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1111/jwas.13118","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143110289","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"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":"Autolyzed brewer's yeast enhances growth and intestinal health in early life stages of Nile tilapia (Oreochromis niloticus L.)","authors":"Sheu G. Odu-Onikosi,&nbsp;Taofik A. Momoh,&nbsp;Benjamin Eynon,&nbsp;Nicola Pontefract,&nbsp;Victor Kuri,&nbsp;Holger Kühlwein,&nbsp;Daniel L. Merrifield","doi":"10.1111/jwas.13120","DOIUrl":"https://doi.org/10.1111/jwas.13120","url":null,"abstract":"<p>The early life stages of fish are critical for determining the overall productivity and sustainability of aquaculture operations. This study investigated the effects of dietary autolyzed brewer's yeast (ABY) on the growth performance and intestinal health of Nile tilapia fry (<i>Oreochromis niloticus</i>). A 35-day feeding trial with 480 Nile tilapia fry across 12 experimental tanks tested the effects of diets supplemented with 1, 2, and 4 g/kg of ABY, with a control diet for comparison. The results indicated that the diet which had 1 g/kg ABY supplementation (ABY1) significantly enhanced the weight gain and specific growth rate (SGR) while reducing feed conversion ratio (FCR) compared to the control diet. Intestinal gene expression analysis showed significant upregulation of immunoregulatory genes (<i>tlr2</i>, <i>il10</i>, <i>il1β</i>, and <i>igm</i>), and a tight junction gene (<i>occludin</i>) in the ABY1 group. Conversely, <i>tnfα</i> expression was significantly downregulated in the ABY1 and ABY2 groups, indicating a potential anti-inflammatory effect. Histological analysis of the mid-intestine revealed healthy morphology with no significant differences in mucosal fold length, muscularis thickness, lamina propria width, and goblet cell count among the treatment groups. The findings demonstrate that supplementing diets with ABY at 1 g/kg level enhances growth performance and modulates the intestinal immune response of Nile tilapia fry, without compromising intestinal integrity. This study offers valuable insights into using ABY as a functional feed additive to enhance Nile tilapia health and development, as well as to promote aquaculture sustainability.</p>","PeriodicalId":17284,"journal":{"name":"Journal of The World Aquaculture Society","volume":"56 1","pages":""},"PeriodicalIF":2.3,"publicationDate":"2024-12-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1111/jwas.13120","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143119255","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"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":"Evaluation of texture, sensory, and fillet color traits in channel catfish (Ictalurus punctatus), blue catfish (Ictalurus furcatus), and the hybrid catfish (channel catfish ♀ × blue catfish ♂)","authors":"Andrew Johnson,&nbsp;Amit Morey,&nbsp;Baofeng Su,&nbsp;Michael Coogan,&nbsp;Darshika Hettiarachchi,&nbsp;Veronica Alston,&nbsp;De Xing,&nbsp;Jinhai Wang,&nbsp;Shangjia Li,&nbsp;Tasnuba Hasin,&nbsp;Cuiyu Lu,&nbsp;Wenwen Wang,&nbsp;Mei Shang,&nbsp;Logan Bern,&nbsp;Rex Dunham","doi":"10.1111/jwas.13113","DOIUrl":"https://doi.org/10.1111/jwas.13113","url":null,"abstract":"<p>Despite catfish being the dominant freshwater aquaculture product in the United States, catfish texture and sensory evaluation are understudied compared with other aquaculture species, and very few studies have been conducted to evaluate these traits in catfish. Texture, sensory, carcass yield, flavor, visceral fat deposition, gonadal development, and fillet color analyses were conducted on four size classes, small (&lt;0.68 kg), medium (0.68–0.92 kg), large (0.93–1.75 kg), and extra-large (&gt;1.75 kg), for channel catfish (<i>n</i> = 456) (<i>Ictalurus punctatus</i>), blue catfish (<i>n</i> = 78) (<i>I. furcatus</i>), and hybrid catfish (<i>n</i> = 195) (channel catfish ♀ × blue catfish ♂). Within genetic type comparisons indicated that the texture traits, hardness, and chewiness and the sensory trait toughness increased with increasing size in hybrid catfish and channel catfish but were the most pronounced in channel catfish. Overall, channel catfish had the firmest fillets based on several attributes. Blue catfish were found to have differences among texture traits between the extra-large size class and the three remaining size classes, but overall size had less of an effect compared with the channel catfish and hybrid catfish. A trend of paternal predominance was observed as the hybrid catfish was more similar to the blue catfish than the channel catfish. Hybrid catfish had the highest fillet percentage. This study is the first large-scale analysis of texture and sensory traits within two catfish species and their interspecific hybrid at different sizes and highlights the differences in commercially important texture and sensory traits.</p>","PeriodicalId":17284,"journal":{"name":"Journal of The World Aquaculture Society","volume":"56 1","pages":""},"PeriodicalIF":2.3,"publicationDate":"2024-12-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1111/jwas.13113","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143118135","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"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 polyphenol rich sugarcane extract on growth performance, survival, immune responses, and resistance to Vibrio parahaemolyticus and white spot syndrome virus infections of Pacific white shrimp, Litopenaeus vannamei","authors":"Parattagorn Wimanhaemin,&nbsp;Niti Chuchird,&nbsp;Tirawat Rairat,&nbsp;Arunothai Keetanon,&nbsp;Putsucha Phansawat,&nbsp;Sunisa Kumphaphat,&nbsp;Lalitphan Kitsanayanyong,&nbsp;Tom Arnott,&nbsp;Matthew Flavel","doi":"10.1111/jwas.13110","DOIUrl":"https://doi.org/10.1111/jwas.13110","url":null,"abstract":"<p>Polyphenol-rich sugarcane extract (PRSE) is a product of sugarcane obtained from the sugar refinery industry and can potentially be used as a feed additive in farmed animals. The purposes of the current study were to evaluate the effects of PRSE on growth performance, survival, immune responses, and resistance to <i>Vibrio parahaemolyticus</i> and white spot syndrome virus (WSSV) infections of Pacific white shrimp, (<i>Litopenaeus vannamei</i>). In Experiment 1, the postlarvae were randomly divided into five groups (8 replicates/group and 80 shrimp/tank) and fed commercial feeds supplemented with PRSE at the rate of 0 (control), 0.2, 0.4, 0.6, and 0.8% of the diets four times/day for 60 days to evaluate the body weight, survival rate, and immune function. In Experiment 2, the juvenile shrimp from Experiment 1 were randomly redistributed into six groups (four treatment groups as in Experiment 1, positive control, and negative control with 3 replicates/group and 30 shrimp/tank) and challenged with either <i>V. parahaemolyticus</i> or WSSV via immersion (10⁵ colony-forming units/mL) and oral (feeding with infected tissues) routes, respectively, to evaluate disease resistance. Our results demonstrated that shrimp body weight for the 0.8% PRSE group was significantly greater than the other groups, and those fed 0.4%–0.8% PRSE demonstrated a significant improvement in survival, total hemocyte count, phagocytic activity, phenoloxidase activity, and superoxide dismutase activity compared with the controls. On day 7 following the <i>V. parahaemolyticus</i> challenges, the survival rates of the 0.4%–0.8% PRSE-fed shrimp (70%–73%) were significantly greater than the control counterpart (46%). However, shrimp challenged with WSSV suffered severe mortality regardless of the treatment groups, but those treated with 0.4%–0.8% PRSE showed delayed mortality. In conclusion, results suggested that dietary PRSE supplemented at 0.4%–0.8% diets were beneficial for improving overall health and disease resistance in shrimp culture.</p>","PeriodicalId":17284,"journal":{"name":"Journal of The World Aquaculture Society","volume":"56 1","pages":""},"PeriodicalIF":2.3,"publicationDate":"2024-12-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1111/jwas.13110","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143116695","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}