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Biofloc technology application in Nile tilapia ( Oreochromis niloticus , L.) hatcheries: effect on the reproductive performance, offspring quality, growth performance, and physiological parameters of fry 生物絮团技术在尼罗罗非鱼(Oreochromis niloticus, L.)孵化场的应用:对鱼苗繁殖性能、子代品质、生长性能和生理参数的影响
Q3 FISHERIES Pub Date : 2023-10-31 DOI: 10.1080/10454438.2023.2276408
Ammar Dilmi, Hamza Mogaf, Hichem Lourguioui, Wahid Refes
ABSTRACTThis study evaluated the potential of applying biofloc technology (BFT) in Nile tilapia (Oreochromis niloticus) hatcheries. The first experiment was conducted to determine the effect of maintaining tilapia broodstock in BFT system in terms of reproductive performance and offspring quality as compared with the conventional clear-water system. A total of 45-tilapia broodstock were reared for 2 months in each treatment. Females at advanced maturation were transferred to four spawning tanks (800 L) at a density of eight individuals per tank (3:1 female:male sex ratio). Two tanks were assigned to each of the two treatments (BFT and control). Reproduction took place over the course of 2 months, with all females being inspected weekly to verify the presence of eggs. The second trial (43 days) analyzed the effect of BFT system on growth performance, feed utilization, digestive enzymes activity, and antioxidant status in the early fry stages. A total of 540 larvae (8.7 ± 0.7 mg) were assigned to six glass aquariums (60 L capacity). One experimental group was reared using a BFT system with daily sugar addition at a C/N ratio of 15/1, in comparison to a control group reared in clear water. Fish were fed commercial pellets three times a day at various feeding ratios (6–9% of the fish body weight). The fecundity of tilapia, hatching rate, egg and larval size, and larval resistance to stress tests presented no significant differences among treatments (P > .05). After 20 days of larval rearing, the daily weight gain was 29% higher in BFT fish as compared to the control treatment. The BFT system had better feed conversion ratio than control treatment. The larvae reared in BFT system had significantly higher alpha-amylase and catalase activities than control (P < .05). Overall, these results suggest that the BFT system can be used in tilapia hatcheries for broodstock rearing without negative effects on reproductive performance. The better growth performances of larvae reared in BFT treatment justified the application of this system during nursery phase.KEYWORDS: Nile tilapiabioflocreproductionlarval qualityenzyme activity AcknowledgmentsThe authors would like to thank Ms Ferhane Djamila, the director of the marine fish farming experimental station (Bousmail, Algeria) to facilitate the conduct of experiments.Disclosure statementNo potential conflict of interest was reported by the author(s).Additional informationFundingThe author(s) reported that there is no funding associated with the work featured in this article.
摘要本研究评价了生物絮团技术在尼罗罗非鱼(Oreochromis niloticus)孵化场的应用潜力。第一个试验旨在确定在BFT系统中维持罗非鱼亲鱼在繁殖性能和后代质量方面的效果,并与常规清水系统进行比较。每个处理共饲养45尾罗非鱼2个月。将成熟期较晚的雌鱼转移到4个800 L的产卵池中,每池8只(雌雄比3:1)。两种处理(BFT和对照组)各分配两个水箱。繁殖过程持续了2个月,所有的雌性每周都要接受检查,以确认卵子的存在。第2期试验(43 d)分析BFT体系对苗期早期生长性能、饲料利用率、消化酶活性和抗氧化状态的影响。将540只幼鱼(8.7±0.7 mg)分养在6个容量为60 L的玻璃水族箱中。试验组饲喂每日添加糖的BFT体系,碳氮比为15/1,对照组饲喂清水饲养。每日三次按不同投喂比例(鱼体重的6-9%)投喂商业颗粒。不同处理罗非鱼的繁殖力、孵化率、卵和幼虫大小以及对应激试验的抗性均无显著差异(P > 0.05)。幼虫饲养20天后,BFT鱼的日增重比对照处理高29%。BFT系统的饲料转化率高于对照处理。BFT体系饲养的幼鱼α -淀粉酶和过氧化氢酶活性显著高于对照(P < 0.05)。综上所述,BFT系统可用于罗非鱼孵化场养殖,不会对繁殖性能产生负面影响。在BFT处理下饲养的幼虫生长性能较好,证明了该体系在苗期的应用。作者感谢阿尔及利亚Bousmail海鱼养殖实验站主任Ferhane Djamila女士为实验的开展提供了便利。披露声明作者未报告潜在的利益冲突。其他信息资金作者报告说,没有与本文所述工作相关的资金。
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引用次数: 0
Effectiveness of Bacillus as a probiotic to improve the growth, survival, and feed conversion ratio in aquaculture: a meta-analysis 芽孢杆菌作为一种益生菌对提高水产养殖生长、存活率和饲料转化率的有效性:一项荟萃分析
Q3 FISHERIES Pub Date : 2023-10-25 DOI: 10.1080/10454438.2023.2268607
Thirangi Gabadage, Saman Wijesekara, Harsha S.C. Galkanda-Arachchige
ABSTRACTThe current study uses meta-analysis to quantitatively synthesize the effectiveness of Bacillus as a potential probiotic in aquaculture. Studies were selected based on Preferred Reporting Items for Systematic Reviews and Meta-Analyses guidelines using Web of Science and Google Scholar. Hedges’ g effect size was used to quantify differences in final weight, specific growth r ate (SGR), survival rate (SR) and feed conversion ratio (FCR) of fish treated with Bacillus compared to the control. In addition, heterogeneity, moderator effect and publication bias were estimated. All analyses were conducted using metafor package in the program R. Significantly higher final weight, SGR, SR and significantly lower FCR were detected in the overall analysis and all the subgroup analysis for fish, crustaceans, freshwater and marine fish compared to control. A significant level of heterogeneity was identified across the studies, and species was identified as a significant moderator influencing the magnitude of the effect of Bacillus spp.KEYWORDS: Bacillusgrowth performancesHedges’ g effect sizeheterogeneityprobioticsmeta-analysis AcknowledgmentsWe would like to express our gratitude and appreciation to those who have taken time to critically review earlier versions of this manuscript as well as the researchers of the original scientific publications used in this study.Disclosure statementNo potential conflict of interest was reported by the author(s).Data availability statementThe authors would like to confirm that the data associated with this paper are available at Department of Aquaculture and Fisheries, Faculty of Livestock, Fisheries and Nutrition, Wayamba University of Sri Lanka and could be accessed based on an official request.
摘要本研究采用meta分析方法定量综合芽孢杆菌作为潜在益生菌在水产养殖中的有效性。研究是根据Web of Science和Google Scholar的系统评价和荟萃分析指南的首选报告项目来选择的。采用Hedges效应量量化芽孢杆菌处理鱼的最终体重、特定生长率(SGR)、存活率(SR)和饲料系数(FCR)与对照组的差异。此外,对异质性、调节效应和发表偏倚进行了估计。所有分析均使用程序r中的元包装进行。与对照组相比,鱼类、甲壳类、淡水和海洋鱼类的总体分析和所有亚组分析均发现最终重量、SGR、SR显著高于对照组,FCR显著低于对照组。在这些研究中发现了显著的异质性,并且物种被确定为影响芽孢杆菌影响程度的显著调节因子。致谢致谢致谢致谢致谢致谢致谢致谢致谢致谢致谢致谢致谢致谢致谢致谢致谢致谢致谢致谢致谢致谢致谢致谢致谢致谢致谢致谢致谢致谢致谢致谢致谢致谢致谢致谢致谢致谢致谢致谢致谢致谢致谢致谢致谢致谢致谢致谢披露声明作者未报告潜在的利益冲突。数据可用性声明作者想确认与本文相关的数据可在斯里兰卡Wayamba大学畜牧、渔业和营养学院水产养殖和渔业系获得,并可根据官方请求访问。
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引用次数: 0
Effect of dietary protein level on growth and metabolism of GIFT juveniles reared in inland ground saline water of medium salinity 日粮蛋白质水平对中盐度内陆地下盐水中饲养的 GIFT 幼鱼生长和代谢的影响
IF 1.2 Q3 FISHERIES Pub Date : 2023-10-02 DOI: 10.1080/10454438.2022.2054672
M. Paul, P. Sardar, N. P. Sahu, A. Deo, T. Varghese, N. Shamna, P. Jana, Gopal Krishna
ABSTRACT A 60-day feeding trial was conducted to study the effect of varying levels of dietary protein on growth metrics, hemato-biochemical status, and metabolic responses of GIFT tilapia juveniles reared in inland ground saline water (IGSW) of 15 g/l. A random distribution of 315 acclimated fish (avg. wt. 4.01 ± 0.01 g, stocking density 15 fish/tank) was done in seven experimental groups—20% (CP20), 25% (CP25), 30% (CP30), 35% (CP35), 40% (CP40), 45% (CP45), and 50% (CP50)—in triplicates following a completely randomized design (CRD). Weight gain (WG), metabolic growth rate (MGR), feed efficiency ratio (FER), and protein growth rate (PGR) showed higher quadratic relations (R2 = 0.93, 0.96, 0.92, 0.90 respectively) with highest (P < 0.05) values in the CP40 group. Protein efficiency ratio (PER) significantly (P < 0.05) decreased with increase in dietary protein levels. Higher (P < 0.05) quadratic relations of muscle and hepatic AST (R2 = 0.71, 0.75) and ALT (R2 = 0.77, 0.69) activities, hemoglobin (Hb) content (R2 = 0.87), hematocrit (Hct), value (R2 = 0.93), and red blood cell (RBC) count (R2 = 0.88) were found in groups fed higher levels of dietary protein than their lower protein-fed counterparts. Muscle LDH and MDH activities were the highest (P < 0.05) in CP20 and CP50 group respectively with strong linear and quadratic relationships. The lowest (P < 0.05) serum glucose level was found in the CP40 group. Second-order polynomial regression analysis indicated that 41.85% dietary protein is optimum with respect to growth metrics, nutrient utilization, and metabolic status of GIFT tilapia juveniles in IGSW of 15 g/l.
摘要 进行了一项为期 60 天的喂养试验,研究不同水平的日粮蛋白质对在 15 克/升的内陆地下盐水(IGSW)中饲养的 GIFT 罗非鱼幼鱼的生长指标、血液生化状况和代谢反应的影响。按照完全随机设计(CRD),将 315 尾适应鱼(平均体重为 4.01 ± 0.01 克,放养密度为 15 尾/缸)随机分配到七个实验组--20% (CP20)、25% (CP25)、30% (CP30)、35% (CP35)、40% (CP40)、45% (CP45) 和 50% (CP50),每组三份。增重(WG)、代谢生长率(MGR)、饲料效率比(FER)和蛋白质生长率(PGR)呈现较高的二次方关系(R2 分别为 0.93、0.96、0.92 和 0.90),CP40 组的数值最高(P < 0.05)。蛋白质效率比(PER)随着日粮蛋白质水平的增加而明显下降(P < 0.05)。与蛋白质水平较低的同类相比,膳食蛋白质水平较高的组的肌肉和肝脏 AST(R2 = 0.71,0.75)和 ALT(R2 = 0.77,0.69)活性、血红蛋白(Hb)含量(R2 = 0.87)、血细胞比容(Hct)值(R2 = 0.93)和红细胞(RBC)计数(R2 = 0.88)的二次方关系更高(P < 0.05)。CP20 和 CP50 组的肌肉 LDH 和 MDH 活性分别最高(P < 0.05),且有很强的线性和二次关系。CP40 组的血清葡萄糖水平最低(P < 0.05)。二阶多项式回归分析表明,在 15 克/升的 IGSW 中,41.85%的日粮蛋白质对 GIFT 罗非鱼幼鱼的生长指标、营养利用率和代谢状况都是最佳的。
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引用次数: 0
Phytase supplemented diets do not reduce the abundance of cyanobacteria and common off-flavor compounds in hybrid striped bass (Morone chrysops x M. saxatilis) aquaculture ponds 补充植酸酶的日粮不会降低杂交带鱼(Morone chrysops x M. saxatilis)养殖池塘中蓝藻和常见异味化合物的丰度
IF 1.2 Q3 FISHERIES Pub Date : 2023-10-02 DOI: 10.1080/10454438.2022.2086839
Kevin K. Schrader, B. Green, S. Rawles, Matthew E. McEntire
ABSTRACT Freshwater fish grown in earthen ponds in the southeastern US can acquire “earthy” and “musty” taints due to the bioaccumulation of the cyanobacteria metabolites geosmin and 2-methyisoborneol (MIB) in the fish flesh and result in unmarketable fish. Dense cyanobacteria communities occur because nutrient inputs (phosphorus) are high in fish production ponds due to high feed application rates. In this study, hybrid striped bass (Morone chrysops x M. saxatilis) grown in earthen ponds was offered one of the six diets including diets supplemented with phytase to reduce phosphorus input to the pond and the subsequent intention of reducing the abundance of undesirable cyanobacteria. Water samples collected biweekly from each pond were analyzed for phytoplankton community structure and concentrations of geosmin and MIB. Differences in dietary phosphorus consumption among diets did not significantly affect soluble reactive phosphorus and total phosphorus concentrations, cyanobacteria abundance, and geosmin and MIB concentrations in pond water.
摘要 美国东南部土池中养殖的淡水鱼会因蓝藻代谢物地奥司明和 2-甲基异龙脑(MIB)在鱼肉中的生物累积而产生 "土腥味 "和 "霉味",导致鱼无法上市销售。蓝藻群落密集的原因是,鱼类生产池塘的饲料投喂率较高,导致营养物质(磷)摄入量较高。在这项研究中,为土池中养殖的杂交带鱼(Morone chrysops x M. saxatilis)提供了六种日粮中的一种,其中包括添加植酸酶的日粮,以减少池塘中的磷投入量,进而减少不良蓝藻的数量。每两周从每个池塘收集一次水样,分析浮游植物群落结构以及地衣素和 MIB 的浓度。不同膳食中磷摄入量的差异对池塘水中可溶性活性磷和总磷浓度、蓝藻丰度以及地衣素和 MIB 浓度没有显著影响。
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引用次数: 0
Seed production of Pearlspot (Etroplus suratensis) in natural ponds 天然池塘中珍珠斑(Etroplus suratensis)的种子生产
IF 1.2 Q3 FISHERIES Pub Date : 2023-10-02 DOI: 10.1080/10454438.2022.2097898
P. A. Vikas, Shinoj Subramannian
ABSTRACT Pearlspot (Etroplus suratensis) is an indigenous fish endemic to India and Sri Lanka. It is the state fish of Kerala and very popular in the main tourist destinations/cousins in Kerala. It is mainly collected from brackish water creeks and canals for domestic consumption. However, several environmental and ecological problems lead to the significant reduction of pearlspot in natural water bodies. The promotion of Pearlspot farming is the only sustainable solution for this crisis. Nevertheless, one of the main issues in Pearlspot farming is the lack of quality seeds in sufficient quantities to undertake commercial farming. Massive seed production is the only way to meet the ever-increasing demand for Pearlspot seed. Several attempts to produce Pearlspot seed stock under hatchery conditions have been unsuccessful. The present paper reports the methods to achieve the mass-scale seed production using pond based seed production method. In this, two brackishwater ponds, each with dimensions of 40 m × 50 m × 0.9 m and water access from the creek, were selected. Scientific procedures were followed to produce large Pearlspot seeds throughout the year. The technology ensures the production of 50,000 seeds from a single breeding pond of 0.5-acre area, which can meet the seed requirement for above 3 ha area. The present study proved that Pearlspot reproduction in natural ponds could produce seed stock on a commercial scale.
摘要 珍珠斑(Etroplus suratensis)是印度和斯里兰卡特有的土著鱼类。它是喀拉拉邦的国鱼,在喀拉拉邦的主要旅游景点/表亲中非常受欢迎。它主要从咸水溪流和运河中采集,供家庭食用。然而,一些环境和生态问题导致天然水体中的珍珠斑显著减少。推广珍珠斑养殖是解决这一危机的唯一可持续办法。然而,珍珠斑养殖的主要问题之一是缺乏足够数量的优质种子来进行商业养殖。大量生产种子是满足对珍珠斑种子日益增长的需求的唯一途径。在孵化条件下生产珠斑种群的多次尝试均未成功。本文报告了利用池塘制种法实现大规模制种的方法。在此过程中,选择了两个咸水池塘,每个池塘的尺寸为 40 m × 50 m × 0.9 m,水源来自小溪。按照科学程序,全年生产大量珍珠斑种子。该技术可确保单个 0.5 英亩面积的育种池生产 50 000 粒种子,满足 3 公顷以上面积的种子需求。本研究证明,在天然池塘中繁殖珍珠斑可以生产出商业规模的种群。
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引用次数: 0
Optimization of dietary protein and lipid levels for butter catfish, (Ompok bimaculatus) (Bloch, 1794) fingerlings: An appraisal on growth, body composition, digestive enzymes, and metabolic function 优化黄油鲶(Ompok bimaculatus)(Bloch,1794 年)幼鱼的日粮蛋白质和脂质水平:对生长、身体成分、消化酶和代谢功能的评估
IF 1.2 Q3 FISHERIES Pub Date : 2023-10-02 DOI: 10.1080/10454438.2022.2082855
D. Chowdhury, Baidyanath Paul, Koushik Ghosh
ABSTRACT A completely randomized 3 × 3 factorial feeding trial was conducted to evaluate the effects of dietary protein and lipid levels on growth, feed utilization, body composition, and digestive as well as metabolic enzymes of the butter catfish (Ompok bimaculatus) fingerlings. Fish (average weight 0.66 ± 0.12 g; 30 d) were fed nine experimental diets containing three protein levels (35%, 40%, 45%) and three lipid levels (5%, 10%, 15%) in triplicate groups for a period of 90 days. The formulated diets were named P35L05, P35L10, P35L15, P40L05, P40L10, P40L15, P45L05, P45L10, and P45L15 (P = Protein; L = Lipid) respectively. The results indicated no protein-sparing effect of lipid in O. bimaculatus fingerlings beyond 35% dietary protein. Overall, diets P40L5 and P35L10 had significantly (P < 0.05) higher SGR (% day−1) and lower FCR than other experimental groups. The highest weight gain (10.89 ± 0.07 g) and carcass protein (16.71 ± 0.2%) were recorded in fish fed diet P40L05. Increasing dietary lipid levels brought about an increase in carcass lipid in fish. Activities of α-amylase and acid-protease were decreased (except at 5% lipid), whereas alkaline-protease was increased with increasing dietary protein. An increase in pyruvate kinase (PK, glycolytic enzyme) activity and decrease in glucose-6-phosphate dehydrogenase (G6PD, lipogenic enzyme) activity were noticed with increasing dietary lipid content. A decrease in PK and increase in G6PD activities were observed with increasing dietary protein levels. Activities of the gluconeogenic enzymes (glucose-6-phosphatase, fructose-1,6-phosphatase) increased significantly (P < 0.05) with increasing dietary protein and lipid levels. Amino acid catabolizing enzymes, alanine transaminase and aspartate transaminase, were slightly increased with increasing dietary protein levels. Considering growth, body composition, metabolic function, and survivability (>95%), the diet containing 40% crude protein with 5% lipid might be suggested as optimum for O. bimaculatus fingerlings under the tested conditions.
摘要 进行了一项完全随机的 3 × 3 因式饲养试验,以评估日粮蛋白质和脂质水平对黄油鲶(Ompok bimaculatus)幼鱼的生长、饲料利用、体成分、消化酶和代谢酶的影响。鱼类(平均体重 0.66 ± 0.12 g;30 d)以一式三份的组别饲喂含有三种蛋白质水平(35%、40%、45%)和三种脂质水平(5%、10%、15%)的九种实验日粮,为期 90 天。配制的日粮分别命名为 P35L05、P35L10、P35L15、P40L05、P40L10、P40L15、P45L05、P45L10 和 P45L15(P = 蛋白质;L = 脂质)。结果表明,当日粮蛋白质含量超过 35% 时,脂质对双尾鳕幼鱼没有蛋白质保护作用。总体而言,与其他试验组相比,P40L5 和 P35L10 日粮的 SGR(% day-1)显著较高(P < 0.05),而 FCR 则较低。饲喂 P40L05 日粮的鱼类增重(10.89 ± 0.07 g)和胴体蛋白质(16.71 ± 0.2%)最高。日粮脂质水平的增加导致鱼体脂质的增加。随着日粮蛋白质的增加,α-淀粉酶和酸性蛋白酶的活性降低(脂质含量为 5%时除外),而碱性蛋白酶的活性增加。随着日粮脂质含量的增加,丙酮酸激酶(PK,糖酵解酶)活性增加,葡萄糖-6-磷酸脱氢酶(G6PD,脂肪生成酶)活性降低。随着日粮蛋白质含量的增加,PK 活性降低,G6PD 活性升高。随着日粮蛋白质和脂质含量的增加,糖元生成酶(葡萄糖-6-磷酸酶、果糖-1,6-磷酸酶)的活性显著增加(P < 0.05)。氨基酸分解酶(丙氨酸转氨酶和天门冬氨酸转氨酶)随着日粮蛋白质水平的增加而略有增加。考虑到生长、体成分、代谢功能和存活率(>95%),在试验条件下,粗蛋白含量为 40%、脂质含量为 5%的日粮可能是最适合双尾鳕幼鱼的日粮。
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引用次数: 0
Dietary administration of three medicinal plant extracts enhance innate immunity and skin pigmentation of Botia rostrata (Günther, 1868) 通过膳食摄入三种药用植物提取物增强 Botia rostrata (Günther, 1868) 的先天免疫力和皮肤色素沉着
IF 1.2 Q3 FISHERIES Pub Date : 2023-10-02 DOI: 10.1080/10454438.2022.2086445
Mainak Mukherjee, Debangshu Narayan Das, S. Chakraborty
ABSTRACT The comparative efficacy of three plant extracts to enhance the immune and pigmentation status of ornamental fish Botia rostrata (Günther, 1868) was analyzed. Juvenile fish (Wt 3.6 ± 0.5 g, n = 72, three replicates) were fed separate diets containing Mucuna pruriens seed methanol (0.25 g/kg), Tribulus terrestris seed ethanol (0.5 g/kg), and Basella alba leaves ethanol (1.0 g/kg) extracts for 1 month. Control fish were fed only the basal diet. After 1 month, liver superoxide dismutase and catalase activities decreased significantly (P < 0.05) in all plant extract-fed groups compared to the control. Mucuna seed extract-fed fish showed a significant (P < 0.05) decrease in malondialdehyde; the glutathione level decreased in Tribulus seed extract- and Basella leaves extract-fed fish compared to the control. A significant (P < 0.05) increase in phagocytotic, sera lysozyme, and respiratory burst activities was noticed in plant extracts-fed fish. Basella leaves extract-fed fish showed a significant (P < 0.05) increase in skin pigmentation pattern. Basella leaves ethanol extract (1.0 g/kg) appeared more potent than the other two plant extracts in enhancing the innate immunity and skin coloration of Botia rostrata.
摘要 分析了三种植物提取物对提高观赏鱼 Botia rostrata(Günther,1868 年)免疫力和色素沉着状况的比较效果。给幼鱼(体重 3.6 ± 0.5 克,n = 72,3 个重复)分别喂食含白茅籽甲醇(0.25 克/千克)、白蒺藜籽乙醇(0.5 克/千克)和白千层叶乙醇(1.0 克/千克)提取物的饲料 1 个月。对照组鱼只喂食基础饲料。1 个月后,与对照组相比,所有喂食植物提取物的组的肝脏超氧化物歧化酶和过氧化氢酶活性都显著下降(P < 0.05)。与对照组相比,牡荆籽提取物喂养组鱼类丙二醛含量明显下降(P < 0.05);刺蒺藜籽提取物和巴戟天叶提取物喂养组鱼类谷胱甘肽含量下降。喂食植物提取物的鱼的吞噬细胞、血清溶菌酶和呼吸爆发活动明显增加(P < 0.05)。贝叶提取物喂养的鱼皮肤色素沉着模式明显增加(P < 0.05)。巴西芹叶乙醇提取物(1.0 克/千克)在增强鱼类先天免疫力和皮肤色素方面的作用似乎比其他两种植物提取物更强。
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引用次数: 0
Evaluating the feasibility of feeding RAS-produced Atlantic salmon ( Salmo salar ) during the depuration process: effects on fish weight loss and off-flavor remediation 评估在净化过程中饲喂ras生产的大西洋鲑鱼(Salmo salar)的可行性:对鱼类体重减轻和异味修复的影响
Q3 FISHERIES Pub Date : 2023-09-27 DOI: 10.1080/10454438.2023.2259892
John Davidson, Kevin Schrader, Travis May, Anna Knight, Marcuslene Harries
Depuration is a proven pre-harvest procedure that eliminates off-flavor from Atlantic salmon produced in recirculating aquaculture systems. However, applied research indicates that depurating salmon lose weight while fasting, which reduces farmgate revenue. Low-ration feeding was therefore evaluated as a method to mitigate weight loss while depurating 3–4 kg Atlantic salmon. Salmon implanted with passive-integrated-transponders were weighed, exposed to concentrated geosmin (GSM) and 2-methylisoborneol (MIB), and stocked in eight pre-disinfected partial reuse systems. Feed was either offered for 4 days or withheld entirely (n = 4) during a 6-day depuration period. Salmon from both treatments rapidly eliminated GSM and MIB, but slightly lower levels remained in fish that were fed (P < .05). Fed and fasted salmon lost 0.3 and 1.1% of their initial body weight, respectively (P < .05). Under the conditions of this study, feeding Atlantic salmon during depuration minimized weight loss without negatively impacting off-flavor elimination.
净化是一种经过验证的收获前程序,可消除循环水产养殖系统中生产的大西洋鲑鱼的异味。然而,应用研究表明,净化鲑鱼会在禁食时减肥,从而减少农场收入。因此,低日粮喂养被评价为在净化3-4公斤大西洋鲑鱼的同时减轻体重损失的方法。植入被动集成应答器的鲑鱼称重,暴露于浓缩土臭素(GSM)和2-甲基异冰片醇(MIB)中,并储存在八个预消毒的部分重复使用系统中。在6天的净化期,饲喂4天或完全不饲喂(n = 4)。两种处理的鲑鱼都迅速消除了GSM和MIB,但喂食鱼的水平略低(P < 0.05)。喂食鲑鱼和禁食鲑鱼的初始体重分别下降0.3%和1.1% (P < 0.05)。在本研究的条件下,在净化期间喂养大西洋鲑鱼可以最大限度地减少体重,而不会对去除异味产生负面影响。
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引用次数: 0
Evidence of enteritis, hepatic steatosis and jaundice in juvenile pirarucu (Arapaima gigas) fed high levels of soybean meal 饲料高水平豆粕的幼鱼有肠炎、肝脂肪变性和黄疸的证据
Q3 FISHERIES Pub Date : 2023-09-12 DOI: 10.1080/10454438.2023.2254753
Renata Maria da Silva, Helena Peres, Sergio Fernández-Boo, José Fernando Marques Barcellos, Jaydione Luiz Marcon
ABSTRACTThis study evaluated the effects of replacing dietary fishmeal with increasing levels of soybean meal (0, 15, 30, 45 and 60% corresponding to 0, 11, 22, 33 and 44% inclusion in the formulated diet) on the intestine and liver histomorphology of juvenile pirarucu Arapaima gigas (233 ± 12 g; mean ± SD) fed for 120 days. At the end of the feeding trial, fish fed diets with higher soybean levels (45 and 60%) presented clinical signs such as appetite loss, cachexia and jaundice. In addition, fish fed on 45% and 60% soybean meal had histomorphological alterations in the middle and posterior portions of the intestinal mucosa (enteritis) and high liver lipid deposition (steatosis). Therefore, 45% or 60% of soybean meal is not recommended; however, a replacement of fishmeal by soybean meal of up to 30% (22% inclusion) can be used in diets to feed juvenile pirarucu for long periods.KEYWORDS: Amazon fishliver and intestinal histomorphologyfishmeal replacementplant-based ingredientssoybean meal AcknowledgmentsAuthors are grateful to the Laboratories of Physiology Applied to Pisciculture (LAFAP) and Thematic Laboratory of Optical and Electronic Microscopy (LTMOE) at the National Institute of Amazonian Research (INPA), to Laboratories of Animal Physiology and Functional Histology at the Federal University of Amazonas (UFAM). We also appreciate the technical support of Laboratories of Immunology and Nutrition from the Department of Biology, and Center of Interdisciplinary Marine and Environmental Research at the University of Porto, Portugal.Disclosure statementNo potential conflict of interest was reported by the author(s).Author contributionsConceptualization: Renata Maria da Silva, Helena Peres and Jaydione Luiz Marcon; validation, Renata Maria da Silva and Helena Peres; Formal analysis: Renata Maria da Silva, Helena Peres, and Sergio Fernández-Boo; Investigation: Renata Maria da Silva, Helena Peres, Sergio Fernández-Boo and José Fernando Marques Barcellos; Resources: Helena Peres and Jaydione Luiz Marcon; Writing-original draft preparation: Renata Maria da Silva; Writing-review and editing: Helena Peres, Sergio Fernández-Boo, José Fernando Marques Barcellos and Jaydione Luiz Marcon; Supervision: Helena Peres and Jaydione Luiz Marcon; Project administration: Helena Peres and Jaydione Luiz Marcon; Funding acquisition: Helena Peres. All authors have read and agreed to the published version of the manuscript.Data availability statementThe data that support the findings of this study are available from the corresponding author upon reasonable request.Institutional Review Board StatementThis study was previously approved by the Animal Ethics Committee at INPA (protocol #004/2016-CEUA/INPA).Additional informationFundingThe projects DARPA/FINEP (Brazil) (process 01.09.0472.00–FINEP) and ADAPTA/INPA (INCT/CNPq/FAPEAM, Brazil) (CNPq: 573976/2008-2; FAPEAM: 3159/08) gave part of financial support. Additional funding support came from R and D and IINNOVMAR - Inn
摘要本研究评价了增加豆粕添加量(分别为0、15、30、45%和60%,对应于配方饲料中添加量为0、11、22、33和44%)替代饲料中的鱼粉对巨骨舌鱼幼鱼(233±12 g;平均±SD),饲养120 d。在饲喂试验结束时,饲喂大豆水平较高的饲料(45%和60%)的鱼出现食欲减退、恶病质和黄疸等临床症状。此外,饲喂45%和60%豆粕的鱼在肠黏膜中后部出现了组织形态学改变(肠炎)和肝脏脂质沉积高(脂肪变性)。因此,豆粕的45%或60%不推荐;然而,用豆粕代替高达30%(含22%)的鱼粉可用于长期喂养琵琶鱼幼鱼。作者感谢美国国家亚马逊研究所(INPA)的生理学应用于鱼类养殖实验室(LAFAP)和光学与电子显微镜专题实验室(LTMOE),以及亚马逊联邦大学(UFAM)的动物生理学和功能组织学实验室。我们也感谢来自葡萄牙波尔图大学生物系的免疫学和营养学实验室以及跨学科海洋和环境研究中心的技术支持。披露声明作者未报告潜在的利益冲突。作者贡献:Renata Maria da Silva, Helena Peres和Jaydione Luiz Marcon;确认,雷纳塔·玛丽亚·达席尔瓦和海伦娜·佩雷斯;形式分析:Renata Maria da Silva, Helena Peres和Sergio Fernández-Boo;调查:雷娜塔·玛丽亚·达席尔瓦,海伦娜·佩雷斯,塞尔吉奥Fernández-Boo和何塞·费尔南多·马奎斯·巴塞洛斯;资源:Helena Peres和Jaydione Luiz Marcon;原稿准备:Renata Maria da Silva;写作-评论和编辑:海伦娜·佩雷斯,塞尔吉奥·Fernández-Boo,约瑟·费尔南多·马奎斯·巴塞洛斯和Jaydione Luiz Marcon;监制:Helena Peres和Jaydione Luiz Marcon;项目管理:Helena Peres和Jaydione Luiz Marcon;融资收购:Helena Peres。所有作者都已阅读并同意稿件的出版版本。数据可得性声明支持本研究结果的数据可根据通讯作者的合理要求获得。该研究先前已获得INPA动物伦理委员会的批准(协议#004/2016-CEUA/INPA)。资助项目DARPA/FINEP(巴西)(流程01.09.0472.00-FINEP)和ADAPTA/INPA(巴西)(CNPq: 573976/2008-2;FAPEAM: 3159/08)提供了部分财政支助。额外的资金支持来自研发和IINNOVMAR -海洋资源管理和开发的创新和可持续性(NORTE-01-0145-FEDER000035),通过欧洲区域发展基金(ERDF)和业务竞争力计划(COMPETE),通过欧洲区域发展基金(ERDF)和科学技术基金会(FCT)获得的资金,在海产品研究领域(NORTE2020)提供支持。在Pest-C/MAR/LA0015/2013项目下。RMS由私立教育机构博士奖学金项目(PROSUP/CAPES, Brazil;海外三明治博士项目(PDSE/CAPES, Brazil, process 88881.134762/2016-01)。
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引用次数: 0
Partial and full replacement of dietary fish oil by poultry fat feeds in rainbow trout, Oncorhynchus mykiss 用家禽脂肪饲料部分和全部替代虹鳟的鱼油
IF 1.2 Q3 FISHERIES Pub Date : 2023-08-13 DOI: 10.1080/10454438.2023.2242829
Zohreh Seydanloo, A. Ghelichi, S. Jorjani, F. Ghojoghi
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引用次数: 0
期刊
Journal of Applied Aquaculture
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