Pub Date : 2023-10-31DOI: 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.
{"title":"Biofloc technology application in Nile tilapia ( <i>Oreochromis niloticus</i> , L.) hatcheries: effect on the reproductive performance, offspring quality, growth performance, and physiological parameters of fry","authors":"Ammar Dilmi, Hamza Mogaf, Hichem Lourguioui, Wahid Refes","doi":"10.1080/10454438.2023.2276408","DOIUrl":"https://doi.org/10.1080/10454438.2023.2276408","url":null,"abstract":"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.","PeriodicalId":15031,"journal":{"name":"Journal of Applied Aquaculture","volume":"582 ","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-10-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135814207","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2023-10-25DOI: 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。
{"title":"Effectiveness of <i>Bacillus</i> as a probiotic to improve the growth, survival, and feed conversion ratio in aquaculture: a meta-analysis","authors":"Thirangi Gabadage, Saman Wijesekara, Harsha S.C. Galkanda-Arachchige","doi":"10.1080/10454438.2023.2268607","DOIUrl":"https://doi.org/10.1080/10454438.2023.2268607","url":null,"abstract":"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.","PeriodicalId":15031,"journal":{"name":"Journal of Applied Aquaculture","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-10-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"134974265","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2023-10-02DOI: 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.
{"title":"Effect of dietary protein level on growth and metabolism of GIFT juveniles reared in inland ground saline water of medium salinity","authors":"M. Paul, P. Sardar, N. P. Sahu, A. Deo, T. Varghese, N. Shamna, P. Jana, Gopal Krishna","doi":"10.1080/10454438.2022.2054672","DOIUrl":"https://doi.org/10.1080/10454438.2022.2054672","url":null,"abstract":"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.","PeriodicalId":15031,"journal":{"name":"Journal of Applied Aquaculture","volume":"24 1","pages":"948 - 974"},"PeriodicalIF":1.2,"publicationDate":"2023-10-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139324203","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2023-10-02DOI: 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。
{"title":"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","authors":"Kevin K. Schrader, B. Green, S. Rawles, Matthew E. McEntire","doi":"10.1080/10454438.2022.2086839","DOIUrl":"https://doi.org/10.1080/10454438.2022.2086839","url":null,"abstract":"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.","PeriodicalId":15031,"journal":{"name":"Journal of Applied Aquaculture","volume":"1 1","pages":"1088 - 1103"},"PeriodicalIF":1.2,"publicationDate":"2023-10-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139324446","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2023-10-02DOI: 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。
{"title":"Seed production of Pearlspot (Etroplus suratensis) in natural ponds","authors":"P. A. Vikas, Shinoj Subramannian","doi":"10.1080/10454438.2022.2097898","DOIUrl":"https://doi.org/10.1080/10454438.2022.2097898","url":null,"abstract":"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.","PeriodicalId":15031,"journal":{"name":"Journal of Applied Aquaculture","volume":"32 1","pages":"1154 - 1161"},"PeriodicalIF":1.2,"publicationDate":"2023-10-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139324464","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2023-10-02DOI: 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.
{"title":"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","authors":"D. Chowdhury, Baidyanath Paul, Koushik Ghosh","doi":"10.1080/10454438.2022.2082855","DOIUrl":"https://doi.org/10.1080/10454438.2022.2082855","url":null,"abstract":"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.","PeriodicalId":15031,"journal":{"name":"Journal of Applied Aquaculture","volume":"14 1","pages":"1045 - 1068"},"PeriodicalIF":1.2,"publicationDate":"2023-10-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139324275","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2023-10-02DOI: 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.
{"title":"Dietary administration of three medicinal plant extracts enhance innate immunity and skin pigmentation of Botia rostrata (Günther, 1868)","authors":"Mainak Mukherjee, Debangshu Narayan Das, S. Chakraborty","doi":"10.1080/10454438.2022.2086445","DOIUrl":"https://doi.org/10.1080/10454438.2022.2086445","url":null,"abstract":"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.","PeriodicalId":15031,"journal":{"name":"Journal of Applied Aquaculture","volume":"89 1","pages":"1069 - 1087"},"PeriodicalIF":1.2,"publicationDate":"2023-10-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139324269","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2023-09-27DOI: 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.
{"title":"Evaluating the feasibility of feeding RAS-produced Atlantic salmon ( <i>Salmo salar</i> ) during the depuration process: effects on fish weight loss and off-flavor remediation","authors":"John Davidson, Kevin Schrader, Travis May, Anna Knight, Marcuslene Harries","doi":"10.1080/10454438.2023.2259892","DOIUrl":"https://doi.org/10.1080/10454438.2023.2259892","url":null,"abstract":"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.","PeriodicalId":15031,"journal":{"name":"Journal of Applied Aquaculture","volume":"78 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-09-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135534352","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2023-09-12DOI: 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)。
{"title":"Evidence of enteritis, hepatic steatosis and jaundice in juvenile pirarucu (<i>Arapaima gigas</i>) fed high levels of soybean meal","authors":"Renata Maria da Silva, Helena Peres, Sergio Fernández-Boo, José Fernando Marques Barcellos, Jaydione Luiz Marcon","doi":"10.1080/10454438.2023.2254753","DOIUrl":"https://doi.org/10.1080/10454438.2023.2254753","url":null,"abstract":"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","PeriodicalId":15031,"journal":{"name":"Journal of Applied Aquaculture","volume":"25 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-09-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135886268","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2023-08-13DOI: 10.1080/10454438.2023.2242829
Zohreh Seydanloo, A. Ghelichi, S. Jorjani, F. Ghojoghi
{"title":"Partial and full replacement of dietary fish oil by poultry fat feeds in rainbow trout, Oncorhynchus mykiss","authors":"Zohreh Seydanloo, A. Ghelichi, S. Jorjani, F. Ghojoghi","doi":"10.1080/10454438.2023.2242829","DOIUrl":"https://doi.org/10.1080/10454438.2023.2242829","url":null,"abstract":"","PeriodicalId":15031,"journal":{"name":"Journal of Applied Aquaculture","volume":" ","pages":""},"PeriodicalIF":1.2,"publicationDate":"2023-08-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"48658309","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}