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Malinovskyi O, Profant V, Kučera V, Pěnka T, Policar T. Practical application of bicultural stocking and its effects on fish growth, blood biochemistry, and solid waste elimination in recirculating aquaculture system. Animal 2024; 18:101193. [PMID: 38870589 DOI: 10.1016/j.animal.2024.101193] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/21/2023] [Revised: 05/07/2024] [Accepted: 05/13/2024] [Indexed: 06/15/2024] Open
Abstract
Traditional monoculture systems often face challenges related to solid waste production and nutrient use. This study addresses these concerns by investigating the impact of bicultural farming of burbot (Lota lota) and rainbow trout (Oncorhynchus mykiss) in a recirculating aquaculture system (RAS) and the subsequent alteration of production of solid waste, growth and physiological status. The rationale behind incorporating burbot lies in its potential as a supplementary species to improve overall system efficiency and sustainability. The experimental groups in triplicate represented the different ratios of rainbow trout (T) and burbot (B) in the stock: T70/B30, T85/B15 and T100/B0. Burbot, although not assessed in monoculture due to its limited commercial significance, was incorporated into the study as a supplementary species, expected to enhance the nutrient utilisation through its bottom-feeding behaviour and anticipated consumption of solid waste produced by trout. After 77 days of culture, the survival rates of trout remained consistent across experimental groups, averaging over 99%, while burbot exhibited comparable survival rates despite lower cumulative survival, averaging 88%. Feed conversion ratios showed no significant differences between the groups, indicating consistent feed utilisation. A significantly higher specific growth rate (SGR) in trout was observed in group T70/B30. The SGR values of burbot were marginally low and without significant differences between groups. Among biochemical markers of blood plasma, phosphorus concentrations were significantly higher in group T70/B30 for both trout and burbot, suggesting better access to the feed for both species. Elevated antioxidant activity and evidence of oxidative stress were found for both species in intestinal tissue. The presence of burbot in stock significantly affected the production of suspended solids per gram of applied feed. Therefore, group T100/B0 demonstrated the highest solid production at multiple time points, suggesting a relationship between burbot presence and the production of suspended solids. Starting at the 9-week, the trout monoculture group exhibited significantly higher phosphorus levels in sediments compared to group T70/B30, emphasising the role of burbot in shaping sediment nutrient dynamics in RAS, such as supplementary cleaning fish. After 11 weeks, group T100/B0 displayed significantly higher values of produced suspended solids and their composition: DM, organic DM, and phosphorus content per gram of feed applied. These results provide evidence of the influence of burbot on suspended solids production and characteristics. In conclusion, this study indicates the positive effects of burbot presence on solid production and sediment nutrient composition.
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Affiliation(s)
- O Malinovskyi
- Faculty of Fisheries and Protection of Waters, South Bohemian Research Centre of Aquaculture and Biodiversity of Hydrocenoses, The University of South Bohemia in České Budějovice, Vodňany, Czech Republic.
| | - V Profant
- Faculty of Fisheries and Protection of Waters, South Bohemian Research Centre of Aquaculture and Biodiversity of Hydrocenoses, The University of South Bohemia in České Budějovice, Vodňany, Czech Republic
| | - V Kučera
- Faculty of Fisheries and Protection of Waters, South Bohemian Research Centre of Aquaculture and Biodiversity of Hydrocenoses, The University of South Bohemia in České Budějovice, Vodňany, Czech Republic
| | - T Pěnka
- Faculty of Fisheries and Protection of Waters, South Bohemian Research Centre of Aquaculture and Biodiversity of Hydrocenoses, The University of South Bohemia in České Budějovice, Vodňany, Czech Republic
| | - T Policar
- Faculty of Fisheries and Protection of Waters, South Bohemian Research Centre of Aquaculture and Biodiversity of Hydrocenoses, The University of South Bohemia in České Budějovice, Vodňany, Czech Republic
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Komal W, Fatima S, Minahal Q, Liaqat R. Investigating the optimum stocking density of tilapia ( Oreochromis niloticus) for intensive production focused to in-pond raceway system. Sci Prog 2024; 107:368504241257128. [PMID: 38860303 PMCID: PMC11168253 DOI: 10.1177/00368504241257128] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/12/2024]
Abstract
The primary objective of this trial was to study the effects of stress caused by stocking density in tilapia (Oreochromis niloticus) cultured in the in-pond raceway system (IPRS). Fingerlings (Initial body weight = 30.00 ± 1.20 g) were reared at different stocking densities i.e. low stocking density (n = 13,000; 1.77 kg/m3), medium stocking density (MSD) (n = 17,000; 2.32 kg/m3), and high stocking density (HSD) (n = 21,000; 2.86 kg/m3), all confined within the raceways of the IPRS. Each group was studied in triplicates. The observed growth revealed a regression in the HSD treatment, evident in its reduced weight gain per fish per day, in contrast to other treatments. Survival rate across all treatments was above 99%. Notably, the HSD treatment exhibited an elevated level of cortisol; however, this intensified crowding stress did not significantly undermine the nutritional value of the fish in HSD and other experimental treatments. Furthermore, an elevation in the levels of superoxide dismutase, catalase, and glutathione peroxidase was noted within the HSD treatment in comparison to the other treatments to reduce the damage caused by reactive oxygen species. As the trial proceeded, functions of digestive enzymes like amylase, protease, and lipase diminished consistently across all treatments. This could possibly signify a deliberate redirection of energy resources toward stress alleviation rather than the usual digestive processes. In summation, it can be reasonably deduced that a stocking density of approximately 2.32 kg/m3 (MSD) emerges as the optimal threshold for effectively cultivating tilapia within an intensive aquaculture framework.
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Affiliation(s)
- Wajeeha Komal
- Department of Zoology, Faculty of Natural Sciences, Lahore College for Women University, Lahore, Punjab, Pakistan
| | - Shafaq Fatima
- Department of Zoology, Faculty of Natural Sciences, Lahore College for Women University, Lahore, Punjab, Pakistan
| | - Qandeel Minahal
- Department of Zoology, Faculty of Natural Sciences, Lahore College for Women University, Lahore, Punjab, Pakistan
| | - Razia Liaqat
- Department of Zoology, Faculty of Natural Sciences, Lahore College for Women University, Lahore, Punjab, Pakistan
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Patra I, Dewi AP, Fawzi M, Hussam F, Obayes IK, Jamal MA, Hammoodi HA, Abbass ZR, Dadras M, Narimanizad F. Effects of Dietary Medlar ( Mespilus germanica L.) Extract on Growth Performance, Innate Immune Characteristics, Antioxidant Status, and Responses to Crowding Stress in Rainbow Trout ( Oncorhynchus mykiss). AQUACULTURE NUTRITION 2023; 2023:7613330. [PMID: 37564114 PMCID: PMC10412272 DOI: 10.1155/2023/7613330] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 07/08/2022] [Revised: 03/29/2023] [Accepted: 06/27/2023] [Indexed: 08/12/2023]
Abstract
High stocking density is a stress factor that potentially affects physiological and immune responses. In this study, the effects of medlar (Mespilus germanica) extract (ME) supplementation on growth performance, antioxidant, immune status, and stress responses in rainbow trout (Oncorhynchus mykiss) were studied. Six hundred fish (40.19 ± 1.09 g; average fish weight ± standard error) were distributed randomly into five experimental groups (assayed in triplicates). The experimental diets were formulated as follows: 0 (T1, control), 0.5% (T2), 1% (T3), 1.5% (T4), and 2% (T4). After 60 days feeding trial, the fish were confined, and the density increased (60 kg/m3) for further 14 days. Results showed significant increases in final weight (FW), weight gain (WG), specific growth rate, and feed intake in the T4 compared to the control (P < 0.05). The feed conversion ratio (FCR) in T4 significantly decreased compared to the control (P < 0.05). Also, the treated groups showed significant improvements in catalase (CAT), superoxide dismutase (SOD), glutathione peroxidase (GPx), lysozyme (LYZ), total immunoglobulin (total Ig), respiratory burst activity (RBA), total protein, and phagocytosis (PHA) (P < 0.05). Moreover, compared with the control group, supplementation could significantly decrease glucose (GLU) and cortisol (CORT), alanine transaminase (ALT), lactate dehydrogenase (LDH), aspartate transaminase (AST), and alkaline phosphatase (ALP) (P < 0.05). After the challenge, FW and WG in all treated challenge groups were significantly improved compared to the control group (P < 0.05). FCR showed a significant decrease in all treated challenged groups compared to the control group (P < 0.05). However, malondialdehyde, CAT, GPx, SOD, LYZ, complement activity (C3 and C4), total Ig, RBA, peroxidase, and PHA in challenged treated groups were significantly increased compared to the control group (P < 0.05). All treated challenged groups showed lower ALT, LDH, AST, ALP, GLU, and CORT levels than the control group (P < 0.05). The experiment herein successfully demonstrated that dietary ME stimulated fish growth, antioxidant status, and immune responses in crowding conditions and can be recommended as beneficial feed additives for rainbow trout.
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Affiliation(s)
| | - Afiska Prima Dewi
- Department of Nutrition, Faculty of Health, Universitas Aisyah Pringsewu, Lampung, Indonesia
| | | | - Fadhil Hussam
- College of Medical Technology, Medical Lab Techniques, Al-Farahidi University, Baghdad, Iraq
| | - Israa K. Obayes
- Medical Laboratory Techniques Department, AL-Mustaqbal University College, Hilla, Iraq
| | | | | | - Zainab R. Abbass
- Department of Pharmacy, Al-Zahrawi University College, Karbala, Iraq
| | - Mahnaz Dadras
- Department of Fisheries, Faculty of Natural Resources, University of Tehran, Karaj, Iran
| | - Fariborz Narimanizad
- Department of Fisheries, Faculty of Natural Resources, University of Tehran, Karaj, Iran
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Swain HS, Das BK, Upadhyay A, Ramteke MH, Kumar V, Meena DK, Sarkar UK, Chadha NK, Rawat KD. Stocking density mediated stress modulates growth attributes in cage reared Labeo rohita (Hamilton) using multifarious biomarker approach. Sci Rep 2022; 12:9869. [PMID: 35701448 PMCID: PMC9197843 DOI: 10.1038/s41598-022-13570-x] [Citation(s) in RCA: 11] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/30/2021] [Accepted: 03/14/2022] [Indexed: 12/24/2022] Open
Abstract
The present study was conducted for 240 days to evaluate the effects of stocking density based on growth attributes, digestive enzymes, muscular composition, biochemical and physiological responses of Labeo rohita fingerlings in tropical inland open water cages. L. rohita (30.35 ± 1.08 g) were randomly distributed into three treatments, namely low stocking density, LSD (10 m-3), medium stocking density, MSD (20 m-3) and high stocking density, HSD (30 m-3) in triplicates. Fish were fed twice daily with CIFRI CAGEGROW® floating feed (crude protein-28%, crude fat-4%). Fish growth and feed efficiency were higher (p < 0.05) in LSD, however, MSD registered a higher yield. Amylase and protease activity reduced whereas lipase activity increased with increasing stocking density. Muscle crude protein and crude fat formed an inverse correlation. The fillet quality deteriorated at higher stocking densities based on Muscle pH, drip loss and frozen leakage rate. The stress biomarkers level (glucose, cortisol, superoxide dismutase and catalase) increased in serum under crowding conditions. Glutamate oxaloacetate transaminase and glutamate pyruvate transaminase in serum were significantly increased in HSD. Serum protein levels decreased with the increase in stocking densities. Body ionic imbalance (Na+, Cl- and K+) was observed under crowding stress. Based on growth attributes and multiple biomarker responses, L. rohita @ 10 m-3 was found to be the optimum density for inland open water cage culture.
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Affiliation(s)
- Himanshu Sekhar Swain
- ICAR-Central Inland Fisheries Research Institute, Barrackpore, Kolkata, 700 120, India
| | - Basanta Kumar Das
- ICAR-Central Inland Fisheries Research Institute, Barrackpore, Kolkata, 700 120, India.
| | - Aurobinda Upadhyay
- ICAR-Central Institute of Fisheries Education, Yari Road, Versova, Mumbai, 400 061, India
| | | | - Vikas Kumar
- ICAR-Central Inland Fisheries Research Institute, Barrackpore, Kolkata, 700 120, India
| | | | - Uttam Kumar Sarkar
- ICAR-Central Inland Fisheries Research Institute, Barrackpore, Kolkata, 700 120, India
| | - Narinder Kumar Chadha
- ICAR-Central Institute of Fisheries Education, Yari Road, Versova, Mumbai, 400 061, India
| | - Kiran Dube Rawat
- ICAR-Central Institute of Fisheries Education, Yari Road, Versova, Mumbai, 400 061, India
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Wang X, Gao XQ, Wang XY, Fang YY, Xu L, Zhao KF, Huang B, Liu BL. Bioaccumulation of manganese and its effects on oxidative stress and immune response in juvenile groupers (Epinephelus moara ♀ × E. lanceolatus ♂). CHEMOSPHERE 2022; 297:134235. [PMID: 35271901 DOI: 10.1016/j.chemosphere.2022.134235] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/06/2022] [Revised: 03/02/2022] [Accepted: 03/04/2022] [Indexed: 06/14/2023]
Abstract
We evaluated the effects of Mn in juvenile Yunlong groupers (Epinephelus moara ♀ × E. lanceolatus ♂). The groupers were exposed to Mn2+ (0, 0.5, 1, 2, and 4 mg/L) for 30 days after which they were assessed. The results indicate the accumulation of Mn in fish depended on dose and time. Mn2+ accumulation in tissues occurred in the following order: liver > gills > intestine > muscle. The concentrations of SOD and CAT in the fish significantly increased after 10 and 20 days of treatment with 4 mg/L Mn2+ but decreased after 30 days. Similarly, GSH and GPx levels increased after 10 days of exposure to 2 and 4 mg/L Mn2+ but decreased after 20 and 30 days of exposure. Additionally, malondialdehyde levels significantly increased after exposing the fish to 2 and 4 mg/L Mn2+ for 10, 20, and 30 days. In addition, liver HSP70 and HSP90 levels significantly increased at days 20 and 30 in all fish exposed to Mn2+. In addition, when Mn2+ concentration was 1, 2, and 4 mg/L, liver C3 and C4 levels were significantly increased after 10, 20, and 30 days. Conversely, the levels of LZM and IgM significantly decreased. Mn2+ also significantly upregulated the expression of genes associated with immunity (tlr3, tnf-α, il-1β, and il-6) in the fish, which suggests that it induces immunotoxicity by altering the immune response. Overall, the findings showed that Mn2+ can disrupt grouper health by bioaccumulating in the fish and subsequently inducing oxidative stress and immune responses. These results can help elucidate the mechanism by which manganese induces toxicity in marine fish. Additionally, they provide a new perspective regarding the detrimental effects of heavy metals in fish.
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Affiliation(s)
- Xi Wang
- Key Laboratory for Sustainable Development of Marine Fisheries, Ministry of Agriculture, Qingdao Key Laboratory for Marine Fish Breeding and Biotechnology, Yellow Sea Fisheries Research Institute, Chinese Academy of Fishery Sciences, Qingdao, 266071, China; College of Fisheries and Life Science, Shanghai Ocean University, Shanghai, 201306, China
| | - Xiao-Qiang Gao
- Key Laboratory for Sustainable Development of Marine Fisheries, Ministry of Agriculture, Qingdao Key Laboratory for Marine Fish Breeding and Biotechnology, Yellow Sea Fisheries Research Institute, Chinese Academy of Fishery Sciences, Qingdao, 266071, China
| | - Xin-Yi Wang
- Key Laboratory for Sustainable Development of Marine Fisheries, Ministry of Agriculture, Qingdao Key Laboratory for Marine Fish Breeding and Biotechnology, Yellow Sea Fisheries Research Institute, Chinese Academy of Fishery Sciences, Qingdao, 266071, China; College of Fisheries and Life Science, Shanghai Ocean University, Shanghai, 201306, China
| | - Ying-Ying Fang
- Key Laboratory for Sustainable Development of Marine Fisheries, Ministry of Agriculture, Qingdao Key Laboratory for Marine Fish Breeding and Biotechnology, Yellow Sea Fisheries Research Institute, Chinese Academy of Fishery Sciences, Qingdao, 266071, China
| | - Liang Xu
- Key Laboratory for Sustainable Development of Marine Fisheries, Ministry of Agriculture, Qingdao Key Laboratory for Marine Fish Breeding and Biotechnology, Yellow Sea Fisheries Research Institute, Chinese Academy of Fishery Sciences, Qingdao, 266071, China
| | - Kui-Feng Zhao
- Yuhai Hongqi Ocean Engineering Co. LTD, Rizhao, 276800, China
| | - Bin Huang
- Key Laboratory for Sustainable Development of Marine Fisheries, Ministry of Agriculture, Qingdao Key Laboratory for Marine Fish Breeding and Biotechnology, Yellow Sea Fisheries Research Institute, Chinese Academy of Fishery Sciences, Qingdao, 266071, China
| | - Bao-Liang Liu
- Key Laboratory for Sustainable Development of Marine Fisheries, Ministry of Agriculture, Qingdao Key Laboratory for Marine Fish Breeding and Biotechnology, Yellow Sea Fisheries Research Institute, Chinese Academy of Fishery Sciences, Qingdao, 266071, China.
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Comparative Study of Physiological Changes in Turbot Scophthalmus maximus in Different Living Conditions. APPLIED SCIENCES-BASEL 2022. [DOI: 10.3390/app12094201] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/04/2023]
Abstract
The aim of this study was to compare the organismal responses of farmed and wild-caught turbot, Scophthalmus maximus, based on analyses of biochemical plasma parameters, leukocyte profile, and histological tissue profile of gills, kidney, liver, intestine, and spleen, as well as gene expression of stress proteins in kidney and liver tissue. The results revealed significant differences in plasma triglycerides (TRIG), total protein (TP), albumin (ALB), globulin (GLOB), bilirubin (TBIL), creatinine (CRE) levels, creatine kinase (CK), and superoxide dismutase (SOD) activities that were higher, and A/G ratio, calcium (Ca) and phosphorus (P) concentrations, alkaline phosphatase (ALP), and glutathione peroxidase (GPx) activity, which were lower in farmed population. The neutrophil-leukocyte (N:L) ratio and gene expression of HSP70, HSP90, and WAP65-2 were increased in the wild-caught turbot. The wild-caught turbot were infested with the gill digenean parasite Dactylogyrus sp. and tapeworm Bothriocephalus scorpii. The obtained results provide valuable data for the assessment of the physiological responses of turbot for future comparative studies of the effects of various endogenous and exogenous factors on homeostasis of this species.
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He Y, Yu H, Zhao H, Zhu H, Zhang Q, Wang A, Shen Y, Xu X, Li J. Transcriptomic analysis to elucidate the effects of high stocking density on grass carp (Ctenopharyngodon idella). BMC Genomics 2021; 22:620. [PMID: 34399686 PMCID: PMC8369720 DOI: 10.1186/s12864-021-07924-4] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/31/2021] [Accepted: 08/06/2021] [Indexed: 01/23/2023] Open
Abstract
Background Grass carp (Ctenopharyngodon idella) is one of the most widely cultivated fishes in China. High stocking density can reportedly affect fish growth and immunity. Herein we performed PacBio long-read single-molecule real-time (SMRT) sequencing and Illumina RNA sequencing to evaluate the effects of high stocking density on grass carp transcriptome. Results SMRT sequencing led to the identification of 33,773 genes (14,946 known and 18,827 new genes). From the structure analysis, 8,009 genes were detected with alternative splicing events, 10,219 genes showed alternative polyadenylation sites and 15,521 long noncoding RNAs. Further, 1,235, 962, and 213 differentially expressed genes (DEGs) were identified in the intestine, muscle, and brain tissues, respectively. We performed functional enrichment analyses of DEGs, and they were identified to be significantly enriched in nutrient metabolism and immune function. The expression levels of several genes encoding apolipoproteins and activities of enzymes involved in carbohydrate enzymolysis were found to be upregulated in the high stocking density group, indicating that lipid metabolism and carbohydrate decomposition were accelerated. Besides, four isoforms of grass carp major histocompatibility complex class II antigen alpha and beta chains in the aforementioned three tissue was showed at least a 4-fold decrease. Conclusions The results suggesting that fish farmed at high stocking densities face issues associated with the metabolism and immune system. To conclude, our results emphasize the importance of maintaining reasonable density in grass carp aquaculture. Supplementary Information The online version contains supplementary material available at 10.1186/s12864-021-07924-4.
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Affiliation(s)
- Yan He
- Key Laboratory of Freshwater Aquatic Genetic Resources Ministry of Agriculture and Rural Affairs, Shanghai Ocean University, Shanghai, China.,National Demonstration Center for Experimental Fisheries Science Education, Shanghai Ocean University, Shanghai, China.,Shanghai Engineering Research Center of Aquaculture, Shanghai Ocean University, Shanghai, China
| | - Hongyan Yu
- Key Laboratory of Freshwater Aquatic Genetic Resources Ministry of Agriculture and Rural Affairs, Shanghai Ocean University, Shanghai, China.,National Demonstration Center for Experimental Fisheries Science Education, Shanghai Ocean University, Shanghai, China
| | - Honggang Zhao
- Department of Natural Resources, Cornell University, 14853, Ithaca, New York, USA
| | - Hua Zhu
- Beijing Key Laboratory of Fishery Biotechnology, Beijing Fisheries Research Institute, 100068, Beijing, China
| | - Qingjing Zhang
- Beijing Key Laboratory of Fishery Biotechnology, Beijing Fisheries Research Institute, 100068, Beijing, China
| | - Anqi Wang
- Key Laboratory of Freshwater Aquatic Genetic Resources Ministry of Agriculture and Rural Affairs, Shanghai Ocean University, Shanghai, China
| | - Yubang Shen
- National Demonstration Center for Experimental Fisheries Science Education, Shanghai Ocean University, Shanghai, China
| | - Xiaoyan Xu
- Key Laboratory of Freshwater Aquatic Genetic Resources Ministry of Agriculture and Rural Affairs, Shanghai Ocean University, Shanghai, China. .,National Demonstration Center for Experimental Fisheries Science Education, Shanghai Ocean University, Shanghai, China. .,Shanghai Engineering Research Center of Aquaculture, Shanghai Ocean University, Shanghai, China.
| | - Jiale Li
- Key Laboratory of Freshwater Aquatic Genetic Resources Ministry of Agriculture and Rural Affairs, Shanghai Ocean University, Shanghai, China. .,National Demonstration Center for Experimental Fisheries Science Education, Shanghai Ocean University, Shanghai, China. .,Shanghai Engineering Research Center of Aquaculture, Shanghai Ocean University, Shanghai, China.
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Li H, Dai C, Zhu Y, Hu Y. Larvae Crowding Increases Development Rate, Improves Disease Resistance, and Induces Expression of Antioxidant Enzymes and Heat Shock Proteins in Mythimna separata (Lepidoptera: Noetuidae). JOURNAL OF ECONOMIC ENTOMOLOGY 2021; 114:1808-1816. [PMID: 34104958 DOI: 10.1093/jee/toab105] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/25/2020] [Indexed: 06/12/2023]
Abstract
High population density (crowding) becomes a stress factor in insects. The oriental armyworm, Mythimna separata (Walker), displays gregarious and solitary phases at high and low population densities, respectively. In this study, we compared life history, disease resistance, and induction of antioxidant enzymes and heat shock protein (HSPs) in two phases of M. separata larvae. Results showed that gregarious larvae had a faster growth rate and lower pupal weight compared to solitary larvae. Furthermore, gregarious individuals exhibited higher survival rates than solitary individuals after Beauveria bassiana infection. The gregarious larvae had higher malondialdehyde content compared to solitary ones, but no differences in total antioxidant capacity were observed between the two larval phases before or after infection. Superoxide dismutase and glutathione peroxidase activities were significantly lower in gregarious M. separata larvae than solitary individuals before infection, but no difference was detected in two phases after infection. However, peroxidase and catalase activities in the two phases showed no difference either before or after infection. Hsp19.8 and Hsp90 expression in gregarious larvae were up-regulated when compared to solitary individuals before or after infection. CuZnSOD expression was not different between the two phases before infection, but it was up-regulated in gregarious ones compared to solitary ones after infection. However, expression of other stress-related genes in gregarious larvae was either repressed or unchanged when compared to solitary individuals before or after infection. Thus, larval crowding changed life history, improved disease resistance of M. separata larvae, and induced variable response of antioxidant enzymes and HSPs to fungal infection.
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Affiliation(s)
- Hongbo Li
- Institute of Plant Protection, Guizhou Academy of Agricultural Sciences, Guiyang, Guizhou, China
| | - Changgeng Dai
- Institute of Plant Protection, Guizhou Academy of Agricultural Sciences, Guiyang, Guizhou, China
| | - Yi Zhu
- Guizhou Station of Plant Protection and Quarantine, Guiyang, Guizhou, China
| | - Yang Hu
- Institute of Plant Protection, Guizhou Academy of Agricultural Sciences, Guiyang, Guizhou, China
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Onxayvieng K, Piria M, Fuka MM, Gavrilović A, Liang X, Liu L, Tang R, Li L, Li D. High stocking density alters growth performance, blood biochemical profiles, and hepatic antioxidative capacity in gibel carp (Carassius gibelio). FISH PHYSIOLOGY AND BIOCHEMISTRY 2021; 47:203-212. [PMID: 33405063 DOI: 10.1007/s10695-020-00905-6] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/05/2020] [Accepted: 11/19/2020] [Indexed: 06/12/2023]
Abstract
This study investigated the effect of stocking density on growth performance, blood biochemical profiles, antioxidative capacity, and muscle quality of gibel carp (Carassius gibelio). Gibel carps (initial body weight 57.04 ± 1.89 g) were reared at high stocking density (HSD, 10.85 kg m-3), medium stocking density (MSD, 5.06 kg m-3), and low stocking density (LSD, 1.47 kg m-3) for 60 days. The LSD group exhibited the highest growth rate, while HSD significantly inhibited fish growth. The muscular compositions of crude fat, crude ash, and moisture were significantly changed by stocking density, but crude protein content did not differ significantly. The stocking density altered the muscular texture profiles of gibel carp. Compared to either the HSD group or the MSD group, the highest levels of resilience and springiness occurred in the LSD group. Significant differences were observed in the levels of plasma glucose, alanine aminotransferase, aspartate aminotransferase, cholesterol, and creatinine among three groups. The fish exhibited the highest level of plasma cortisol as well as the lowest levels of triiodothyronine and thyroxine in the HSD group. The fish stocked in the LSD group showed the highest activities of superoxide dismutase, glutathione peroxidase, and catalase as well as the highest content of glutathione in liver. The significant highest total antioxidant capacity occurred in the fish stocked in the LSD group. The results showed that HSD resulted in chronic crowding stress, and exerted negative impact on growth performance, muscle quality, and antioxidative capacity of gibel carp.
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Affiliation(s)
- Kommaly Onxayvieng
- College of Fisheries, Hubei Provincial Engineering Laboratory for Pond Aquaculture, Huazhong Agricultural University, 1 Shizishan Street, Wuhan, 430070, People's Republic of China
- Department of Livestock and Fisheries, Ministry of Agriculture and Forestry, Vientiane, Lao PDR
| | - Marina Piria
- Faculty of Agriculture, University of Zagreb, Svetošimunska cesta 25, 10000, Zagreb, Croatia
| | - Mirna Mrkonjić Fuka
- Faculty of Agriculture, University of Zagreb, Svetošimunska cesta 25, 10000, Zagreb, Croatia
| | - Ana Gavrilović
- Faculty of Agriculture, University of Zagreb, Svetošimunska cesta 25, 10000, Zagreb, Croatia
| | - Xiao Liang
- College of Fisheries, Hubei Provincial Engineering Laboratory for Pond Aquaculture, Huazhong Agricultural University, 1 Shizishan Street, Wuhan, 430070, People's Republic of China
| | - Lu Liu
- College of Fisheries, Hubei Provincial Engineering Laboratory for Pond Aquaculture, Huazhong Agricultural University, 1 Shizishan Street, Wuhan, 430070, People's Republic of China
| | - Rong Tang
- College of Fisheries, Hubei Provincial Engineering Laboratory for Pond Aquaculture, Huazhong Agricultural University, 1 Shizishan Street, Wuhan, 430070, People's Republic of China
| | - Li Li
- College of Fisheries, Hubei Provincial Engineering Laboratory for Pond Aquaculture, Huazhong Agricultural University, 1 Shizishan Street, Wuhan, 430070, People's Republic of China
| | - Dapeng Li
- College of Fisheries, Hubei Provincial Engineering Laboratory for Pond Aquaculture, Huazhong Agricultural University, 1 Shizishan Street, Wuhan, 430070, People's Republic of China.
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Rafiei F, Khajali F. Flavonoid antioxidants in chicken meat production: Potential application and future trends. WORLD POULTRY SCI J 2021. [DOI: 10.1080/00439339.2021.1891401] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Affiliation(s)
- Fariba Rafiei
- Department of Plant Breeding and Biotechnology, Shahrekord University, Shahrekord, Iran
| | - Fariborz Khajali
- Department of Animal Science, Faculty of Agriculture, Shahrekord University, Shahrekord, Iran
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Shao T, Chen X, Zhai D, Wang T, Long X, Liu Z. Evaluation of the effects of different stocking densities on growth and stress responses of juvenile hybrid grouper ♀ Epinephelus fuscoguttatus × ♂ Epinephelus lanceolatus in recirculating aquaculture systems. JOURNAL OF FISH BIOLOGY 2019; 95:1022-1029. [PMID: 31294837 DOI: 10.1111/jfb.14093] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/05/2017] [Accepted: 07/10/2019] [Indexed: 06/09/2023]
Abstract
This study was aimed at evaluating the physiological and metabolic responses of juvenile hybrid grouper ♀ Epinephelus fuscoguttatus × ♂ Epinephelus lanceolatus to stocking density. Hybrid grouper juveniles (mean ± SE = 25.43 ± 2.36 g live mass) were stocked for 22 weeks in a recirculating aquaculture system (RAS) under four different densities: low stocking density (LD; 1.03 kg m-3 ), medium stocking density (MD; 2.06 kg m-3 ), high stocking density (HD; 3.09 kg m-3 ) and extra-high stocking density (EHD; 4.11 kg m-3 ). Biometric variables were recorded and plasma, liver, intestine and stomach samples were taken for biochemical analysis at the end of the experimental period. Final stocking densities were 6.27, 16.04, 23.77 and 28.32 kg m-3 , respectively, with significant differences in growth performance. Our results showed that the best growth rates and feed utilisation occurred in the MD group. Higher plasma cortisol and glucose levels and lower triglyceride levels reflected the stress responses in the EHD group. Moreover, the activity of aspartate and alanine transaminases was elevated in the HD and EHD groups due to enhanced gluconeogenesis. The activity of the digestive enzyme pepsin significantly increased in the MD group. We found that 2.06-3.09 kg m-3 is the most suitable starting density for culturing juvenile hybrid grouper in recirculating aquaculture systems.
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Affiliation(s)
- Tianyun Shao
- Jiangsu Provincial Key Laboratory of Marine Biology, College of Resources and Environmental Sciences, Nanjing Agricultural University, Nanjing, China
| | - Xiaoyan Chen
- Jiangsu Provincial Key Laboratory of Marine Biology, College of Resources and Environmental Sciences, Nanjing Agricultural University, Nanjing, China
| | - Dingxuan Zhai
- Jiangsu Provincial Key Laboratory of Marine Biology, College of Resources and Environmental Sciences, Nanjing Agricultural University, Nanjing, China
| | - Tao Wang
- Jiangsu Provincial Key Laboratory of Marine Biology, College of Resources and Environmental Sciences, Nanjing Agricultural University, Nanjing, China
| | - Xiaohua Long
- Jiangsu Provincial Key Laboratory of Marine Biology, College of Resources and Environmental Sciences, Nanjing Agricultural University, Nanjing, China
| | - Zhaopu Liu
- Jiangsu Provincial Key Laboratory of Marine Biology, College of Resources and Environmental Sciences, Nanjing Agricultural University, Nanjing, China
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Marinho de Mello MM, de Fátima Pereira de Faria C, Zanuzzo FS, Urbinati EC. β-glucan modulates cortisol levels in stressed pacu (Piaractus mesopotamicus) inoculated with heat-killed Aeromonas hydrophila. FISH & SHELLFISH IMMUNOLOGY 2019; 93:1076-1083. [PMID: 31352115 DOI: 10.1016/j.fsi.2019.07.068] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/20/2019] [Revised: 07/14/2019] [Accepted: 07/24/2019] [Indexed: 06/10/2023]
Abstract
In this study, we show that β-glucan can modulate cortisol release in fish. We simulated a common situation in aquaculture: the transport of fish followed by contact with an opportunistic pathogen and observed what effect glucan had on the immune and stress response in these conditions. Pacu (Piaractus mesopotamicus) were fed with a diet containing β-glucan (0.1%) for 15 days prior to transport followed by an injection with heat-killed Aeromonas hydrophila. We sampled fish before transport, at arrival and at 3 and 24 h after bacterial injection. β-Glucans are used in aquaculture and have a known immunostimulatory effect, which was observed in this study. The results showed that β-glucan modulated the plasma cortisol levels differently by increasing these levels up to 24 h after transport and preventing the increase caused by bacterial inoculum injection. In addition, β-glucan enhanced the activity of the complement system at 24 h and reduced the monocytes and lymphocytes number in peripheral blood at 3 and 24 h after bacterial inoculation. Our results suggest that β-glucan modulated a bidirectional interaction between the stress and the immune responses. The modulation of cortisol levels and the immunostimulation by β-glucan at different moments in our study suggest the compound has a protective effect by avoiding higher levels of the hormone and improving resistance against bacterial infection in pacu. These results add evidence to support the use of β-glucan as an immunomodulator in the aquaculture industry.
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Affiliation(s)
- Mariana Maluli Marinho de Mello
- Universidade Estadual Paulista UNESP - Centro de Aquicultura, Campus de Jaboticabal, Via de Acesso Prof. Paulo Donato Castelane, S/N - Vila Industrial, Jaboticabal, São Paulo, 14884-900, Brazil.
| | - Camila de Fátima Pereira de Faria
- Universidade Estadual Paulista UNESP - Centro de Aquicultura, Campus de Jaboticabal, Via de Acesso Prof. Paulo Donato Castelane, S/N - Vila Industrial, Jaboticabal, São Paulo, 14884-900, Brazil.
| | - Fábio Sabbadin Zanuzzo
- Universidade Estadual Paulista UNESP - Centro de Aquicultura, Campus de Jaboticabal, Via de Acesso Prof. Paulo Donato Castelane, S/N - Vila Industrial, Jaboticabal, São Paulo, 14884-900, Brazil.
| | - Elisabeth Criscuolo Urbinati
- Universidade Estadual Paulista UNESP - Centro de Aquicultura, Campus de Jaboticabal, Via de Acesso Prof. Paulo Donato Castelane, S/N - Vila Industrial, Jaboticabal, São Paulo, 14884-900, Brazil; Universidade Estadual Paulista UNESP - Faculdade de Ciências Agrárias e Veterinárias, Campus de Jaboticabal, Via de Acesso Prof. Paulo Donato Castelane, S/N - Vila Industrial, Jaboticabal, São Paulo, 14884-900, Brazil.
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Li HB, Dai CG, He YF, Hu Y. Characterization and Expression of Genes Encoding Superoxide Dismutase in the Oriental Armyworm, Mythimna separata (Lepidoptera: Noctuidae). JOURNAL OF ECONOMIC ENTOMOLOGY 2019; 112:2381-2388. [PMID: 31219570 DOI: 10.1093/jee/toz163] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/16/2019] [Indexed: 06/09/2023]
Abstract
Superoxide dismutase (SOD) is an antioxidant metalloenzyme that catalyzes the dismutation of the superoxide anion O2- to O2 and H2O2. Many studies have focused on the role of SOD in response to abiotic stress, but its role during biotic stress, such as changes in organismal population density, has rarely been investigated. The oriental armyworm, Mythimna separata, is an economically important pest that exhibits phenotypic changes in response to population density. Solitary and gregarious phases occur at low and high population density, respectively. To examine the role of SODs in response to population density stress, we cloned two genes encoding SOD, MsCuZnSOD and MsMnSOD, and compared their expression in solitary and gregarious phases of M. separata. The MsCuZnSOD and MsMnSOD ORFs were 480 and 651 bp and encoded predicted protein products of 159 and 216 amino acids, respectively. The two SODs contained motifs that are typical of orthologous proteins. Real-time PCR indicated that the two SOD genes were expressed throughout developmental stages and were significantly upregulated in more mature stages of gregarious M. separata. Expression of the two SOD genes in various tissues of sixth-instar larvae was higher in gregarious versus solitary insects. Furthermore, expression of the SOD genes was significantly upregulated in response to crowding in solitary individuals, but suppressed in gregarious insects subjected to isolation. Collectively, these results suggest that population density may be key factor in the induction of SOD genes in M. separata.
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Affiliation(s)
- Hong-Bo Li
- Department of Entomology, Institute of Plant Protection, Guizhou Academy of Agricultural Science, Guiyang, Guizhou, China
| | - Chang-Geng Dai
- Department of Entomology, Institute of Plant Protection, Guizhou Academy of Agricultural Science, Guiyang, Guizhou, China
| | - Yong-Fu He
- Department of Entomology, Institute of Plant Protection, Guizhou Academy of Agricultural Science, Guiyang, Guizhou, China
| | - Yang Hu
- Department of Entomology, Institute of Plant Protection, Guizhou Academy of Agricultural Science, Guiyang, Guizhou, China
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Liu H, Ye T, Soon TK, Zhang H, Cheng D, Li S, Ma H, Zheng H. Effects of stocking density on the growth performance, bacterial load and antioxidant response systems of noble scallop Chlamys nobilis. FISH & SHELLFISH IMMUNOLOGY 2019; 92:40-44. [PMID: 31132466 DOI: 10.1016/j.fsi.2019.05.053] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/05/2019] [Revised: 05/16/2019] [Accepted: 05/23/2019] [Indexed: 06/09/2023]
Abstract
Stocking density is a crucial factor in shellfish aquaculture that affects overall growth performance and health status. Present study analyzes the effects of stocking densities on growth, survival and hemolymph immune status of noble scallop Chlamys nobilis. The scallops with the same size were separately placed in the lantern cages (10 layers per cage) using high stocking density (500 scallops per cage) and low stocking density (100 scallops per cage) and cultivated in the same location for 60 days. The results indicated that the scallops cultivated at high stocking density had significantly higher mortality and slower growth than those cultivated at low stocking density. Moreover, the hemolymph of scallops cultivated at high density showed significantly higher bacterial load, higher reactive oxygen species (ROS), higher expression level of Nrf2 and lower expression level of Keap1, as well as lower antibacterial ability of Vibrio parahemolyticus than that of scallops cultivated at low density. The present results demonstrated that long-term overcrowding is detrimental for the scallops, which can not only lead to high mortality and slow growth, but also cause more vulnerable to pathogenic bacteria. Therefore, we speculated that high stocking density culture practice of scallops in China might be the root of infectious bacteria outbreaks.
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Affiliation(s)
- Hongxing Liu
- Key Laboratory of Marine Biotechnology of Guangdong Province, Shantou University, Shantou, 515063, China; Mariculture Research Center for Subtropical Shellfish & Algae of Guangdong Province, Shantou, 515063, China; STU-UMT Joint Shellfish Research Laboratory, Shantou University, Shantou, 515063, China
| | - Ting Ye
- Key Laboratory of Marine Biotechnology of Guangdong Province, Shantou University, Shantou, 515063, China; Mariculture Research Center for Subtropical Shellfish & Algae of Guangdong Province, Shantou, 515063, China; STU-UMT Joint Shellfish Research Laboratory, Shantou University, Shantou, 515063, China
| | - Tan Kar Soon
- Key Laboratory of Marine Biotechnology of Guangdong Province, Shantou University, Shantou, 515063, China; Mariculture Research Center for Subtropical Shellfish & Algae of Guangdong Province, Shantou, 515063, China; STU-UMT Joint Shellfish Research Laboratory, Shantou University, Shantou, 515063, China
| | - Hongkuan Zhang
- Key Laboratory of Marine Biotechnology of Guangdong Province, Shantou University, Shantou, 515063, China; Mariculture Research Center for Subtropical Shellfish & Algae of Guangdong Province, Shantou, 515063, China; STU-UMT Joint Shellfish Research Laboratory, Shantou University, Shantou, 515063, China
| | - Dewei Cheng
- Key Laboratory of Marine Biotechnology of Guangdong Province, Shantou University, Shantou, 515063, China; Mariculture Research Center for Subtropical Shellfish & Algae of Guangdong Province, Shantou, 515063, China; STU-UMT Joint Shellfish Research Laboratory, Shantou University, Shantou, 515063, China
| | - Shengkang Li
- Key Laboratory of Marine Biotechnology of Guangdong Province, Shantou University, Shantou, 515063, China; Mariculture Research Center for Subtropical Shellfish & Algae of Guangdong Province, Shantou, 515063, China; STU-UMT Joint Shellfish Research Laboratory, Shantou University, Shantou, 515063, China
| | - Hongyu Ma
- Key Laboratory of Marine Biotechnology of Guangdong Province, Shantou University, Shantou, 515063, China; Mariculture Research Center for Subtropical Shellfish & Algae of Guangdong Province, Shantou, 515063, China; STU-UMT Joint Shellfish Research Laboratory, Shantou University, Shantou, 515063, China
| | - Huaiping Zheng
- Key Laboratory of Marine Biotechnology of Guangdong Province, Shantou University, Shantou, 515063, China; Mariculture Research Center for Subtropical Shellfish & Algae of Guangdong Province, Shantou, 515063, China; STU-UMT Joint Shellfish Research Laboratory, Shantou University, Shantou, 515063, China.
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Aryani N, Mardiah A, Syandri H. Influence of Different Stocking Densities on Growth, Feed Efficiency and Carcass Composition of Bonylip Barb (<I>Osteochilus vittatus</I> Cyprinidae) Fingerlings. Pak J Biol Sci 2017; 20:489-497. [PMID: 30187725 DOI: 10.3923/pjbs.2017.489.497] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
Abstract
BACKGROUND AND OBJECTIVE Bonylip barb (Osteochilus vittatus) is an herbivorous freshwater fin-fish species native in Indonesia. These species has high demand and price in the market. A 90 days study was conducted to evaluate the effects of different stocking densities on growth, carcass composition, survival and water quality of Osteochilus vittatus (O. vittatus) in a synthetic sheet pond. MATERIALS AND METHODS Fingerlings with an average weight of 2.45±0.071 g (Mean±SD) were randomly stocked in 12 synthetic sheet ponds (2×1 m) at densities of 50 fish m-3 (T50), 75 fish m-3 (T75), 100 fish m-3 (T100) and 125 fish m-3 (T125) in triplicate groups. One-way ANOVA followed by Duncan's new multiple range test was used to analyze obtained data a significance level of p<0.05. RESULTS After 90 days of the trial, the growth in terms of weight gain (WG) and specific growth rate (SGR) of fish from T50 were significantly higher than those from T75, T100 and T125. The feed conversion ratio (FCR) was significantly lower in T50 followed by T75, T100 and T125 consecutively. Protein efficiency ratio (PER) was higher in T50 followed by T75, T100 and T125 consecutively. The survival rate (SR) of the fish from T50 was significantly higher than that of the fish from T75, T100 and T125. Significantly lower amounts of carcass lipid and carbohydrate contents were found in T125 compared to the contents of the T50, T75 and T100 fish. CONCLUSIONS Based on the growth performance and feed efficiency, the T50 fish m-3 of O. vittatus in a synthetic sheet pond may be technically feasible.
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