Aquaculture Nutrition最新文献

{"title":"Comprehensive Assessment of Rapeseed Meal as a Fish Meal Substitute in Hybrid Sturgeon (Acipenser schrenckii ♀ × Acipenser baerii ♂) Diets: Impacts on Growth Performance, Body Composition, Immunological Responses, Intestinal Histology, and Inflammatory Response","authors":"Wenpeng Zhang,&nbsp;Siyuan Liu,&nbsp;Shidi Wang,&nbsp;Huamin Wang,&nbsp;Kaibo Ge,&nbsp;Yuhong Yang,&nbsp;Shaoxia Lu,&nbsp;Shicheng Han,&nbsp;Haibo Jiang,&nbsp;Chang’an Wang,&nbsp;Hongbai Liu","doi":"10.1155/anu/6415465","DOIUrl":"https://doi.org/10.1155/anu/6415465","url":null,"abstract":"<div>\u0000 <p>This study aimed to assess the impact of incorporating rapeseed meal (RM) as a partial substitute for fish meal (FM) in the diet of cultured hybrid sturgeon (<i>Acipenser schrenckii</i> ♀ × <i>Acipenser baerii</i> ♂). A total of 450 juvenile hybrid sturgeon with similar weights were randomly assigned to five dietary groups, each with triplicates of 30 fish per tank. For 12 weeks, FM was replaced with varying percentages of RM (0%, 25%, 50%, 75%, and 100%). Results indicated a decreasing trend in final body weight (FBW), weight gain, and survival rates (SRs) as the ratio of RM increased. Growth performance was less affected when the substitution ratio of FM was below 50%. The replacement of FM with RM showed a decreasing trend in crude protein and ash content of sturgeon body composition and no significant effect on moisture and crude lipid content (<i>p</i> &gt; 0.05). Essential amino acids (EAAs) in whole fish, such as methionine (Met), threonine (Thr), and lysine (Lys), increased with higher substitution rates (<i>p</i> &gt; 0.05). The lysozyme (LZM) activities in the pyloric cecum, duodenum, and valve intestine of the sturgeon showed a decreasing trend (<i>p</i> &gt; 0.05). Nevertheless, at a 50% substitution level, sturgeon liver superoxide dismutase (SOD) and malondialdehyde (MDA) activities reached their peak. At 100% substitution, serum alanine aminotransferase (ALT) and aspartate aminotransferase (AST) activities were significantly higher than in other groups (<i>p</i> &lt; 0.05). At 50% substitution, sturgeon valve intestinal protease activity reached its maximum, and the duodenal villus height (VH) was not significantly different from that of the control group (morphological and structural indices were lower in the treatment groups). Gene expression of pro-inflammatory factors IL-1<i>β</i>, IL-6, IL-8, and TNF-<i>α</i> increased with the substitution ratio, while anti-inflammatory factor IL-10 showed the opposite trend. NF-<i>κ</i>B and myeloid differentiation factor 88 (MyD88) expression increased with substitution ratio, and Toll-like receptor 1 (TLR1) and Toll-like receptor 2 (TLR2) showed the opposite trend in the intestine. The results of this study suggest that replacing less than 50% of fishmeal with RM in hybrid sturgeon diets can reduce the amount of fishmeal used without compromising fish health.</p>\u0000 </div>","PeriodicalId":8225,"journal":{"name":"Aquaculture Nutrition","volume":"2025 1","pages":""},"PeriodicalIF":3.0,"publicationDate":"2025-01-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1155/anu/6415465","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143117880","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"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 Algal-Derived β-Glucan on the Growth Performance, Intestinal Health, and Aeromonas veronii Resistance of Ricefield Eel (Monopterus albus)","authors":"Yu Guo,&nbsp;Zijing Yuan,&nbsp;Yueyun Han,&nbsp;Daiqin Yang,&nbsp;Hanwen Yuan,&nbsp;Fuxian Zhang","doi":"10.1155/anu/8172810","DOIUrl":"10.1155/anu/8172810","url":null,"abstract":"<div>\u0000 <p>Ricefield eel is an important economic fish in China. However, large-scale intensive breeding has increased the incidence of diseases in eels. In this study, we conducted an 8-week feeding trial to investigate the effects of <i>β</i>-glucan on the growth performance, intestinal health, and <i>Aeromonas veronii</i> resistance of <i>Monopterus albus</i> (<i>M. albus</i>). Three hundred healthy fish (initial body weight: 12.38 ± 0.50 g) were randomly divided into five groups: A1 (basal diet) was considered the control group, whereas A2, A3, A4, and A5 were the experimental groups. The fish in the experimental groups were fed a basal diet supplemented with 250, 500, 1000, and 2000 mg/kg <i>β</i>-glucan, respectively. The addition of 0.025%–0.2% <i>β</i>-glucan resulted in a notable enhancement of eel growth performance, with the most significant improvement observed in eels supplemented with 0.1% <i>β</i>-glucan (<i>p</i> &lt; 0.05). Furthermore, 0.025%–0.2% <i>β</i>-glucan could significantly enhance the antioxidant properties of the eel intestinal tract (<i>p</i> &lt; 0.05), and the addition of 0.1% <i>β</i>-glucan significantly improved trypsin (TPS), amylase (AMS), and lipase (LPS) activities in the intestine (<i>p</i> &lt; 0.05). In terms of intestinal histology, the A3, A4, and A5 groups exhibited significantly greater villus height compared to the control group (<i>p</i> &lt; 0.05). Concentrations of <i>β</i>-glucan at 0.1% and 0.2% enhanced the composition of the intestinal flora; specifically, the relative abundance of Proteobacteria increased, while the relative abundance of Firmicutes decreased. Moreover, the addition of 0.05%–0.2% <i>β</i>-glucan significantly improved the relative survival rate (SR) of <i>A. veronii</i>-infected eels and significantly decreased the bacterial load of the liver, spleen, and kidney (<i>p</i> &lt; 0.05). In comparison to eels that did not receive <i>β</i>-glucan supplementation, eels supplemented with 0.2% <i>β</i>-glucan exhibited decreased intestinal structural damage. In summary, the addition of 0.1%–0.2% <i>β</i>-glucan can promote eel growth, improve intestinal digestion and antioxidant capacity, regulate intestinal flora, and enhance intestinal physical function and anti-infection ability.</p>\u0000 </div>","PeriodicalId":8225,"journal":{"name":"Aquaculture Nutrition","volume":"2025 1","pages":""},"PeriodicalIF":3.0,"publicationDate":"2025-01-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11774572/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143057863","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"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":"Unraveling the Potential of Black Soldier Fly Larvae as a Sustainable Protein Source for Nile Tilapia Production in Diverse Aquaculture Systems","authors":"Jonathan Munguti,&nbsp;Mavindu Muthoka,&nbsp;Jimmy B. Mboya,&nbsp;Domitila Kyule,&nbsp;Menaga Meenakshisundaram,&nbsp;Chrysantus M. Tanga","doi":"10.1155/anu/3598843","DOIUrl":"10.1155/anu/3598843","url":null,"abstract":"<div>\u0000 <p>Aquaculture plays a critical role in global food security, with Nile tilapia (<i>Oreochromis niloticus</i>) recognized for its adaptability and robust growth. However, traditional feeds, heavily reliant on fishmeal (FM) and soybean meal, face economic and environmental challenges. In response, black soldier fly larvae meal (BSFLM) has emerged as a promising, nutrient-dense alternative. This review synthesizes existing literature on BSFLM’s nutritional profile and its suitability for Nile tilapia diets, while acknowledging that the data come from diverse independent studies conducted under varying environmental conditions and husbandry practices. BSFLM consistently provides high-quality protein (29.9%–48.2%), aligning with tilapia’s requirements, and is rich in essential minerals and fatty acids. While its lipid content (25.69%–28.43%) may require processing adjustments, the overall profile supports tilapia health and growth. Trends from case studies suggest that certain systems, such as hapas placed in ponds, have reported favorable growth and feed conversion efficiencies at 50% FM replacement levels. However, these findings cannot be directly compared across all studies due to differences in methodologies, culture conditions, and inclusion rates. Instead, they collectively indicate that BSFLM can effectively replace traditional protein sources and enhance sustainability. As research and production scale up, careful consideration of context, system design, and feed formulations will be essential. Collaborative efforts among researchers, industry, and policymakers will further refine the use of BSFLM, ultimately advancing the environmental and economic sustainability of Nile tilapia aquaculture.</p>\u0000 </div>","PeriodicalId":8225,"journal":{"name":"Aquaculture Nutrition","volume":"2025 1","pages":""},"PeriodicalIF":3.0,"publicationDate":"2025-01-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11759566/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143045269","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"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 Substituting Soybean Meal With Winged Bean on Growth, Physiological Function and Flesh Quality of Indian Butter Catfish (Ompok bimaculatus)","authors":"Jaya Angom,&nbsp;Soibam Khogen Singh,&nbsp;Ayam Gangarani Devi,&nbsp;Pronob Das,&nbsp;Pradyut Biswas,&nbsp;Gusheinzed Waikhom,&nbsp;Soibam Ngasotter,&nbsp;Reshmi Debbarma,&nbsp;Sourabh Debbarma,&nbsp;Nitesh Kumar Yadav","doi":"10.1155/anu/9959405","DOIUrl":"10.1155/anu/9959405","url":null,"abstract":"<div>\u0000 <p>Soybean meal (SBM) remains a primary protein source in aquafeeds. This study investigated the potential of winged bean (<i>Psophocarpus tetragonolobus</i>) meal as a SBM replacement in diets for butter catfish (<i>Ompok bimaculatus</i>) juveniles (mean weight: 1.24 ± 0.23 g). A response surface methodology (RSM) optimized processing conditions to minimize antinutritional factors (ANFs) in winged bean meal (WBM), resulting in minimized tannin (4.14 ± 0.018 mg/g at 40 min, 110°C), phytate (0.414 ± 0.0009 mg/g at 31.67 min, 104.5°C) and trypsin inhibitor activity (70.8 ± 0.06% inhibition at 20 min, 90°C). Experimental diets containing 30% crude protein and varying levels of WBM substitution (0%, 25%, 50%, 75% and 100%) were fed for 70 days. Growth performance, measured by weight gain, was significantly higher in the 25% substitution group (<i>p</i> &lt; 0.05) but not significantly different from the control at 50% substitution. Quadratic regression analysis predicted an optimal inclusion level of 15.10% for maximizing weight gain. Survival rates did not differ significantly among treatments (<i>p</i> &gt; 0.05). Feed utilization was most efficient in the 25% substitution group. Haematological and immunological parameters indicated improved fish health at the 25% substitution level. Flesh quality attributes, including texture profile analysis, pH and antioxidant activity, were superior in the 25% group compared to other treatments. However, colour enhancement was more pronounced at higher inclusion levels (≥50%). While flesh pH and antioxidant activity suggested potential stress at higher winged bean inclusion levels, the 25% group showed improved values compared to the control. These findings suggest that WBM can potentially replace up to 50% of SBM in butter catfish diets, offering a promising alternative protein source. This study provides preliminary data on the feasibility and prospects of utilizing WBM in <i>O. bimaculatus</i> diets.</p>\u0000 </div>","PeriodicalId":8225,"journal":{"name":"Aquaculture Nutrition","volume":"2025 1","pages":""},"PeriodicalIF":3.0,"publicationDate":"2025-01-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11756947/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143027810","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"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":"Isolation and Evaluation of Potential Use of Prebiotics—Utilizing Butyrate-Producing Bacteria in Nibea coibor","authors":"Zhongzhen Li,&nbsp;Ngoc Tuan Tran,&nbsp;Ming Zhang,&nbsp;Zhaoxi Li,&nbsp;Wanying Yang,&nbsp;Shuqi Wang,&nbsp;Zhong Hu,&nbsp;Shengkang Li","doi":"10.1155/anu/4679037","DOIUrl":"10.1155/anu/4679037","url":null,"abstract":"<div>\u0000 <p>Butyrate-producing bacteria (BPB) benefit the health of aquatic animals. This current study aimed to isolate BPB from the intestines of <i>Nibea coibor</i> and assess their probiotic potential. The results showed that nine isolates were obtained in vitro from the gut of <i>N. coibor</i>, including six <i>Clostridium butyricum</i>, two <i>Proteocatella sphenisci</i>, and one <i>Fusobacterium varium</i>. The representative bacteria, <i>C. butyricum</i> CG-3 and <i>P. sphenisci</i> DG-1, which produce high butyrate levels, were further studied for short-chain fatty acid (SCFA) production and antibiotic susceptibility. The effects of BPB singly (CB: basal diet + CG-3 and PS: basal diet + DG-1, at 10⁷ CFU/g) or in combination with galactooligosaccharides (GOS) (0.5%) and inulin (0.5%) (CBIG) or D-sorbitol (0.5%) (PSGS) on the growth and health status of <i>N. coibor</i> were investigated. Results showed an increase in growth parameters in the CB, CBIG, and PSGS groups, except for the PS group. Alterations in intestinal microbiota (including diversity, abundance, and function) were observed in four experimental groups (CB, CBIG, PS, and PSGS groups). SCFA contents increased in treated groups; butyrate production was positively related to bacterial abundance. Compared to control, levels of complement C3, complement C4, immunoglobulin M (IgM), transforming growth factor-<i>β</i> (TGF-<i>β</i>), interleukin (IL)-10, IL-1<i>β</i>, and lysozyme (LZM) increased, while malondialdehyde (MDA) decreased in treated groups. Contents of IL-6 (PS and PSGS groups), tumor necrosis factor-alpha (TNF-<i>α</i>) (CB, PS, and PSGS groups), total antioxidant capacity (T-AOC) (CB and PS groups), total superoxide dismutase (T-SOD) (PS group), catalase (CAT) (CB and PSGS groups), and activities of amylase (PS and PSGS groups), trypsin (CB group), and lipase (CBIG group) were increased. Our results suggested the potential use of <i>C. butyricum</i> CG-1 or <i>P. sphenisci</i> DG-1 singly or in combination with prebiotics improved growth and health conditions in <i>N. coibor</i>.</p>\u0000 </div>","PeriodicalId":8225,"journal":{"name":"Aquaculture Nutrition","volume":"2025 1","pages":""},"PeriodicalIF":3.0,"publicationDate":"2025-01-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11742079/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142999026","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"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":"L-Carnitine Improves Muscle Nutrient Metabolism and Intestinal Health in High-Fat-Fed Carp (Cyprinus carpio)","authors":"Xianglin Cao,&nbsp;Rongjie Yuan,&nbsp;Yi Guo,&nbsp;Mengtao Jia,&nbsp;Yinyin Wei,&nbsp;Jiameng zhou,&nbsp;Han Cui,&nbsp;Baohua Li,&nbsp;Jianjun Chen","doi":"10.1155/anu/5623889","DOIUrl":"10.1155/anu/5623889","url":null,"abstract":"<div>\u0000 <p>L-Carnitine is widely recognized for its involvement in lipid metabolism, but its effects on muscle quality and gut health in carp have not been well studied. The research aimed to investigate how L-carnitine influences muscle quality and intestinal health in high-fat-fed carp. The study was separated into four groups that received either the standard diet, a high-fat diet (HFD), or a HFD supplemented with 500 mg/kg L-carnitine (LLC), or a HFD supplemented with 1000 mg/kg L-carnitine (HLC) for 56 days. L-Carnitine was found to significantly reduce blood lipid levels. In addition, L-carnitine increased the crude protein content and decreased the crude fat content of high-fat-fed carp muscle while improving muscle fiber morphology and muscle quality. L-Carnitine increased the expression of genes related to intestinal tight junction proteins (<i>claudin-2</i>, <i>occludin</i>, and <i>zo-1</i>), improved the expression of genes related to intestinal inflammation, and enhanced the physical barrier function and organization of the intestine. Analysis of intestinal flora and intestinal metabolites showed that L-carnitine increased the diversity of the intestinal flora, increased the abundance of <i>Cetobacterium</i>, and influenced intestinal levels of bile acids, arachidonic acid, and tryptophan-related metabolites. In conclusion, supplementation with 1000 mg/kg L-carnitine improved muscle quality and intestinal health significantly in high-fat-fed carp by regulating muscle nutrient metabolism and intestinal flora.</p>\u0000 </div>","PeriodicalId":8225,"journal":{"name":"Aquaculture Nutrition","volume":"2025 1","pages":""},"PeriodicalIF":3.0,"publicationDate":"2025-01-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11737909/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142999059","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"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 Probiotic Effects on the Growth Performance and Microbiome of Nile Tilapia (Oreochromis niloticus) in a High-Density Biofloc System","authors":"Beatriz P. N. Oliveira,&nbsp;Uthpala Padeniya,&nbsp;Jacob W. Bledsoe,&nbsp;D. Allen Davis,&nbsp;Mark R. Liles,&nbsp;Aya S. Hussain,&nbsp;Daniel E. Wells,&nbsp;Timothy J. Bruce","doi":"10.1155/anu/5868806","DOIUrl":"10.1155/anu/5868806","url":null,"abstract":"<div>\u0000 <p>Biofloc technology is an aquaculture production system that has gained popularity with tilapia production. Probiotics provide benefits for the host and/or aquatic environments by both regulating and modulating microbial communities and their metabolites. When a probiotic feed is combined with a biofloc system, the production amount may be improved through better fish growth, disease resistance, and/or improved water quality by reducing organic matter and stabilizing metrics such as pH and components of the nitrogen cycle. Two research trials measured Nile tilapia (<i>Oreochromis niloticus</i>) growth performance and composition of the microbial communities in the water and within the fish fecal material, following feeding with top-coated probiotic treatments. Trial A incorporated tilapia (71.4 ± 4.4 g), and a commercial diet (Control) that was top coated with either <i>Bacillus velenzensis</i> AP193 (AP193; 1 × 10⁷ CFU g¹) and BiOWiSH Feedbuilder Syn3 (BW; 3.6 × 10⁴ CFU g⁻¹). In Trial B, juvenile tilapia (5.34 ± 0.42 g) were fed treatment diets top coated with two different concentrations of BiOWiSH Feedbuilder Syn3 at final concentrations of 3.6 × 10⁴ CFU g⁻¹ (BWx1) and 7.2 × 10⁴ CFU g⁻¹ (BWx2). Tilapia were offered commercial feed (38% protein floating tilapia feed) as a control diet for both trials. Results from both growth trials indicated no differences in growth performance due to the probiotic additions, except for feed conversion ratio (FCR) in Trial B. Both BWx1 and BWx2 showed improved survival, water quality, solids management, and bacterial composition of water and fecal matter. Even though growth performance results presented no significant differences, results could differ based on the probiotic concentration, the route of probiotic administration, or their impact on the microbial community of the biofloc system culture water. Trial results indicated that testing on a larger scale with varied probiotic doses may be necessary to achieve an effective dosage for improving tilapia growth performance.</p>\u0000 </div>","PeriodicalId":8225,"journal":{"name":"Aquaculture Nutrition","volume":"2025 1","pages":""},"PeriodicalIF":3.0,"publicationDate":"2025-01-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11735063/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142999019","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"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":"Selection of Nonlethal Early Biomarkers to Predict Gilthead Seabream (Sparus aurata) Growth","authors":"Rafael Angelakopoulos,&nbsp;Andreas Tsipourlianos,&nbsp;Katerina A. Moutou,&nbsp;Alexia E. Fytsili,&nbsp;Anthi Tsingene,&nbsp;Eleni Galliopoulou,&nbsp;Leonidas Papaharisis,&nbsp;Zissis Mamuris,&nbsp;Themistoklis Giannoulis,&nbsp;Arkadios Dimitroglou","doi":"10.1155/anu/9918595","DOIUrl":"10.1155/anu/9918595","url":null,"abstract":"<div>\u0000 <p>One of the main challenges in aquaculture is the constant search for sustainable alternative feed ingredients that can successfully replace fishmeal (FM) without any negative effects on fish growth and health. The goal of the present study was to develop a toolbox for rapidly anticipating the dynamics of fish growth following the introduction of a new feed; nonlethal, biochemical, and molecular markers that provide insights into physiological changes in the fish. A nutritional challenge by feeding a conventional feed rich in FM protein (FM diet) versus an experimental feed rich in plant protein (PP) and low FM inclusion (PP diet), in 20 different families of gilthead sea bream (<i>Sparus aurata</i>) was performed. Fifteen and 30 days after the initiation of the nutritional challenge, the transcriptional response of gilthead seabream erythrocytes along with classical hematological biochemical markers were compared. Zootechnical, biochemical, and transcriptome data from each family under different dietary treatments were combined into a classification model to identify variables that can predict the growth rate at the end of the 14-month farming period (July 2018–September 2019). A highly accurate model was produced (<i>A</i> &gt; 80%) based on the combination of seven markers (five molecular and two biochemical markers) and with high potential in separating faster and slower growing fish as early as 30 days after the initiation of feeding.</p>\u0000 </div>","PeriodicalId":8225,"journal":{"name":"Aquaculture Nutrition","volume":"2025 1","pages":""},"PeriodicalIF":3.0,"publicationDate":"2025-01-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11730015/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142999088","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"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 Short-Term Stress and Interaction of Salinity and Ammonia-N Levels, Associated With Food Deprivation on Fatty Acid Profile and Body Composition in Nile Tilapia (Oreochromis niloticus)","authors":"Eisa Ebrahimi,&nbsp;Javad Motamedi-Tehrani,&nbsp;Rahim Peyghan","doi":"10.1155/anu/8840365","DOIUrl":"10.1155/anu/8840365","url":null,"abstract":"<div>\u0000 <p>High levels of nitrogen compounds can lead to acute toxicity in aquatic organisms. Ammonia, a by-product of protein breakdown, is the most prevalent contaminant in freshwater environments. Increasing salinity in water sources can cause fluctuations in salinity levels within breeding ponds. The interaction of these elements can occur in breeding ponds, significantly impacting the physiology and quality of the aquatic products. The purpose of this study was to examine the relationship between salinity and ammonia-N stress and their effects on the quality and fatty acid profile of tilapia fish (<i>Oreochromis niloticus</i>). The fish were divided into 12 distinct treatment groups, each characterized by varying salinity levels (0, 4, 8, and 12 ppt) and different concentrations of ammonia-N (0, 50% of 50% lethal concentration [LC₅₀]-96 h, and 30% of LC₅₀-96 h) arranged in a factorial design. The calculated LC₅₀-96 h for ammonia-N was 0.86 mg/L. Significant increases were observed in cortisol and glucose levels associated with various salinity treatments and ammonia levels. The levels of carcass protein in the salinity treatments (4, 8, and 12 ppt) did not show any significant differences when compared to the control treatment. However, the protein percentage at 50% of LC₅₀-96 h of ammonia-N was lower than that of the control treatment. In salinity treatments and ammonia levels (50% and 30% of LC₅₀-96 h of ammonia-N), a significant increase in the percentage of lipid, highly unsaturated fatty acids (HUFA), eicosapentaenoic acid (EPA), and docosahexaenoic acid (DHA) was observed. To draw the conclusion, our assessment indicates that a salinity concentration of 8 ppt over a 96-h period without feeding has produced positive effects on the quality of tilapia carcasses.</p>\u0000 </div>","PeriodicalId":8225,"journal":{"name":"Aquaculture Nutrition","volume":"2025 1","pages":""},"PeriodicalIF":3.0,"publicationDate":"2025-01-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11730019/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142999045","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"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":"Genistein Attenuates Lipopolysaccharide-Induced Hepatic Oxidative Stress and Inflammatory Responses in Turbot (Scophthalmus maximus L.) Juveniles","authors":"Xiao-qian Zhou,&nbsp;Zi-yan Shi,&nbsp;Hai-hong Chen,&nbsp;Xin Xiao,&nbsp;Dan Xu,&nbsp;Zhi-jie Dan","doi":"10.1155/anu/2897742","DOIUrl":"https://doi.org/10.1155/anu/2897742","url":null,"abstract":"<div>\u0000 <p>The antioxidant and anti-inflammatory functions of genistein (GEN) and the regulatory mechanisms have been intensively investigated in mammals; however, there was a paucity of studies in aquatic animals. The purpose of this study was to evaluate the effects of GEN on lipopolysaccharide (LPS)-induced hepatic oxidative stress and inflammatory responses in turbot (<i>Scophthalmus maximus</i> L.) juveniles. Turbots (20 g body weight) were intraperitoneally injected with PBS (the Control group), LPS (50 μg/g), and LPS (50 μg/g) + GEN (0.05, 0.5 and 5 μg/g), respectively. Results showed that the content of the total bilirubin, the activities of the alanine aminotransferase, aspartate aminotransferase, γ-glutamyl transpeptidase, and alkaline phosphatase were significantly decreased with increasing levels of GEN injection (<i>p</i> &lt; 0.05). Results exhibited that hepatic proinflammatory factors, oxidative stress-related factors, and apoptotic factors mRNA expression were significantly upregulated after intraperitoneal injection of LPS in turbot, compared with the Control group (<i>p</i> &lt; 0.05). Meanwhile, the mRNA expressions of these apoptosis- and inflammation-related factors showed significant linear or quadratic terms of downregulation with increasing levels of GEN injection (<i>p</i> &lt; 0.05) and almost reached the lowest values at 0.5 μg/g or 5 μg/g of GEN injection levels. The symptoms of LPS-induced disorganization of hepatocyte arrangement, vacuolization of hepatocytes, and inner mitochondrial cristae damage in turbot were significantly improved after GEN injection. Furthermore, the main signaling pathways associated with inflammation included Herpes simplex virus 1 infection, RIG-I-like receptor, NOD-like receptor, C-type lectin receptor, and p53 signaling pathways. Moreover, results of weighted correlation network analysis indicated that vascular endothelial growth factor A–A (<i>vegfaa</i>) and signal transducer and activator of transcription 3 (<i>stat3</i>) were likely to be hub genes. Meanwhile, mRNA expressions of <i>vegfaa</i>, <i>vegfab</i>, <i>stat1</i>, <i>stat2</i>, <i>stat3</i>, <i>stat4</i>, <i>stat5a</i>, and <i>stat5b</i> exhibited significantly linear or quadratic downregulation with increasing levels of GEN injection (<i>p</i> &lt; 0.05). The above results confirmed that intraperitoneal injection of GEN significantly alleviated LPS-induced hepatic oxidative stress and inflammatory injury in turbot, and <i>vegfaa</i> and <i>stat3</i> possibly play a key role in this process.</p>\u0000 </div>","PeriodicalId":8225,"journal":{"name":"Aquaculture Nutrition","volume":"2024 1","pages":""},"PeriodicalIF":3.0,"publicationDate":"2024-12-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1155/anu/2897742","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143120741","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}