2025 |
Vasilaki, Antigoni; Nengas, Ioannis; Fountoulaki, Eleni; Henry, Morgane; Kogiannou, Dimitra; Nikoloudaki, Chrysanthi; Chronopoulos, Petros; Karapanagiotidis, Ioannis T; Mente, Elena Aquaculture, 609 , pp. 742820, 2025, ISSN: 0044-8486. @article{vasilaki_nutritional_2025, title = {Nutritional enhancement of lupin meal (\textit{Lupinus albus}), through fermentation with textitSaccharomyces cerevisiae, as plant protein ingredient in aquafeeds for the European sea bass (\textit{Dicentrarchus labrax}).}, author = {Antigoni Vasilaki and Ioannis Nengas and Eleni Fountoulaki and Morgane Henry and Dimitra Kogiannou and Chrysanthi Nikoloudaki and Petros Chronopoulos and Ioannis T Karapanagiotidis and Elena Mente}, url = {https://www.sciencedirect.com/science/article/pii/S0044848625007069 /wp-content/uploads/2025/07/2025-Vasilaki-AQUA-34.pdf}, doi = {10.1016/j.aquaculture.2025.742820}, issn = {0044-8486}, year = {2025}, date = {2025-07-04}, urldate = {2025-07-09}, journal = {Aquaculture}, volume = {609}, pages = {742820}, abstract = {Legumes contain antinutritional factors that restrict their use in fish nutrition, however, biotechnological methods such as solid-state fermentation can improve their nutritional profile, positioning them as a sustainable alternative for aquafeed formulation. This research evaluated the feasibility of replacing soybean meal with Saccharomyces cerevisiae-fermented lupin meal (Lupinus albus) in feed formulations for European sea bass (Dicentrarchus labrax). Four diets were produced; one commercial type diet (FRL0) and three diets with partial (FRL10, FRL12.5) or complete (FRL15) replacement of soybean meal by fermented lupin meal. European sea bass juveniles, with an initial average weight: 18.9 g, were fed the experimental diets for 71 days in triplicate groups. Results indicated no adverse effects on key production indices when soybean meal was replaced partially or totally. Fermented lupin meal linearly improved feed utilization. Apparent digestibility coefficient of protein significantly increased in groups fed 12.5 % and 15 % fermented lupin, as did apparent digestibility coefficient of fat, compared to the FRL0 group. Trypsin activity in pyloric caeca was statistically elevated in the fermented lupin groups compare to FRL0 group. Whole-body composition, amino acid content, and deposition showed no significant differences among groups. Fermented lupin did not suppress the immune system, and a slight immunostimulatory effect was observed at a 12.5 % inclusion level. No histopathological alterations were detected. Overall, the results demonstrated the efficacy of solid-state fermentation process in enhancing lupin meal, highlighting its potential as a sustainable replacement for soybean meal in feed formulations for Mediterranean marine aquaculture species such us D. labrax.}, keywords = {}, pubstate = {published}, tppubtype = {article} } Legumes contain antinutritional factors that restrict their use in fish nutrition, however, biotechnological methods such as solid-state fermentation can improve their nutritional profile, positioning them as a sustainable alternative for aquafeed formulation. This research evaluated the feasibility of replacing soybean meal with Saccharomyces cerevisiae-fermented lupin meal (Lupinus albus) in feed formulations for European sea bass (Dicentrarchus labrax). Four diets were produced; one commercial type diet (FRL0) and three diets with partial (FRL10, FRL12.5) or complete (FRL15) replacement of soybean meal by fermented lupin meal. European sea bass juveniles, with an initial average weight: 18.9 g, were fed the experimental diets for 71 days in triplicate groups. Results indicated no adverse effects on key production indices when soybean meal was replaced partially or totally. Fermented lupin meal linearly improved feed utilization. Apparent digestibility coefficient of protein significantly increased in groups fed 12.5 % and 15 % fermented lupin, as did apparent digestibility coefficient of fat, compared to the FRL0 group. Trypsin activity in pyloric caeca was statistically elevated in the fermented lupin groups compare to FRL0 group. Whole-body composition, amino acid content, and deposition showed no significant differences among groups. Fermented lupin did not suppress the immune system, and a slight immunostimulatory effect was observed at a 12.5 % inclusion level. No histopathological alterations were detected. Overall, the results demonstrated the efficacy of solid-state fermentation process in enhancing lupin meal, highlighting its potential as a sustainable replacement for soybean meal in feed formulations for Mediterranean marine aquaculture species such us D. labrax. |
Grigorakis, Kriton; Kogiannou, Dimitra; Kotsiri, Mado; Kleidas, Ioannis; Mello, Paulo De H; Habiballah, Salaheldeen; Alshaikhi, Ali; Alhafedh, Youssef S; Mohamed, Asaad H W Freshness and Spoilage Patterns of Wild and Farmed Tropical Fish Species with Major Commercial Importance Originating from Saudi Arabian Waters Journal Article Foods, 14 (4), pp. 690, 2025, ISSN: 2304-8158. @article{grigorakis_freshness_2025, title = {Freshness and Spoilage Patterns of Wild and Farmed Tropical Fish Species with Major Commercial Importance Originating from Saudi Arabian Waters}, author = {Kriton Grigorakis and Dimitra Kogiannou and Mado Kotsiri and Ioannis Kleidas and Paulo H De Mello and Salaheldeen Habiballah and Ali Alshaikhi and Youssef S Alhafedh and Asaad H W Mohamed}, url = {https://www.mdpi.com/2304-8158/14/4/690 /wp-content/uploads/2025/02/2025-Grigorakis-foods-8.pdf}, doi = {10.3390/foods14040690}, issn = {2304-8158}, year = {2025}, date = {2025-02-24}, urldate = {2025-02-24}, journal = {Foods}, volume = {14}, number = {4}, pages = {690}, abstract = {Ice-stored farmed barramundi (Lates calcarifer), snubnose pompano (Trachinotus blochii) and sobaity bream (Sparidentex hasta), as well as wild-caught cobia (Rachycentron canadum), coral trout (Plectropomus leopardus), giant trevally (Caranx ignobilis), milkfish (Chanos chanos) and mangrove red snapper (Lutjanus argentimaculatus), were compared for their freshness/spoilage using sensory, chemical and microbiological methods. Quality Index Method schemes were developed to determine alterations in the sensory freshness. The shelf lives ranged from 8 (coral trout) to 18 days (sobaity bream). The farmed species always exhibited a significantly longer shelf life than the wild-caught species. The adenosine triphosphate (ATP) breakdown followed different patterns in the studied species. The K-values at the time of sensory rejection ranged from 30 to 80% depending on the species, while the microbial load reached or exceeded a level of 6 log cfu/g. Although the shelf life duration was dependent on the origin of the fish (wild or farmed), the ATP breakdown scheme, as well as the K-values and microbial loads at the time of rejection, were species-dependent and independent of the origin.}, keywords = {}, pubstate = {published}, tppubtype = {article} } Ice-stored farmed barramundi (Lates calcarifer), snubnose pompano (Trachinotus blochii) and sobaity bream (Sparidentex hasta), as well as wild-caught cobia (Rachycentron canadum), coral trout (Plectropomus leopardus), giant trevally (Caranx ignobilis), milkfish (Chanos chanos) and mangrove red snapper (Lutjanus argentimaculatus), were compared for their freshness/spoilage using sensory, chemical and microbiological methods. Quality Index Method schemes were developed to determine alterations in the sensory freshness. The shelf lives ranged from 8 (coral trout) to 18 days (sobaity bream). The farmed species always exhibited a significantly longer shelf life than the wild-caught species. The adenosine triphosphate (ATP) breakdown followed different patterns in the studied species. The K-values at the time of sensory rejection ranged from 30 to 80% depending on the species, while the microbial load reached or exceeded a level of 6 log cfu/g. Although the shelf life duration was dependent on the origin of the fish (wild or farmed), the ATP breakdown scheme, as well as the K-values and microbial loads at the time of rejection, were species-dependent and independent of the origin. |
2024 |
Kotsiri, Mado; Kleidas, Ioannis; Kogiannou, Dimitra; Vryonides, Katerina; Papadouli, Christina; Golomazou, Eleni; Rigos, George Evaluation of the long-term effects of formaldehyde on the physiology of the Mediterranean mussel, Mytilus galloprovincialis Journal Article Chemosphere, 364 , pp. 143190, 2024, ISSN: 00456535. @article{kotsiri_evaluation_2024, title = {Evaluation of the long-term effects of formaldehyde on the physiology of the Mediterranean mussel, Mytilus galloprovincialis}, author = {Mado Kotsiri and Ioannis Kleidas and Dimitra Kogiannou and Katerina Vryonides and Christina Papadouli and Eleni Golomazou and George Rigos}, url = {https://linkinghub.elsevier.com/retrieve/pii/S0045653524020873 https://imbbc.hcmr.gr/wp-content/uploads/2024/10/2024-Kotsiri-43-pre-print.pdf}, doi = {10.1016/j.chemosphere.2024.143190}, issn = {00456535}, year = {2024}, date = {2024-09-30}, urldate = {2024-10-01}, journal = {Chemosphere}, volume = {364}, pages = {143190}, keywords = {}, pubstate = {published}, tppubtype = {article} } |
Cotou, Efthimia; Miliou, Helen; Chatzoglou, Evanthia; Schoina, Eirini; Politakis, Nektarios; Kogiannou, Dimitra; Fountoulaki, Eleni; Androni, Afrodite; Konstantinopoulou, Aggeliki; Assimakopoulou, Georgia; Nathanailides, Cosmas Fishes, 9 (2), pp. 69, 2024, ISSN: 2410-3888. @article{cotou_growth_2024, title = {Growth Performance and Environmental Quality Indices and Biomarkers in a Co-Culture of the European Sea Bass with Filter and Deposit Feeders: A Case Study of an IMTA System}, author = {Efthimia Cotou and Helen Miliou and Evanthia Chatzoglou and Eirini Schoina and Nektarios Politakis and Dimitra Kogiannou and Eleni Fountoulaki and Afrodite Androni and Aggeliki Konstantinopoulou and Georgia Assimakopoulou and Cosmas Nathanailides}, url = {https://imbbc.hcmr.gr/wp-content/uploads/2024/02/2024-Cotou-et-al-Fishes-11.pdf https://www.mdpi.com/2410-3888/9/2/69 }, doi = {10.3390/fishes9020069}, issn = {2410-3888}, year = {2024}, date = {2024-02-27}, urldate = {2024-02-28}, journal = {Fishes}, volume = {9}, number = {2}, pages = {69}, abstract = {This study aimed to evaluate the efficiency of an integrated multi-trophic aquaculture (IMTA) system comprising co-cultured fed fish and organic extractive species representing three distinct trophic levels as well as the impact and potential utilization of two commercially available fish feeds made up of 35% fish meal (FM) and 20% fish meal (LFM) ingredients, using a multi-indicator assessment approach. Significant alterations were observed in growth performance indicators (GPIs), water and sediment quality indices, toxicity tests and biomarkers within the IMTA system. The fish survival, weight gain (WG), and specific growth rate (SGR) were higher in the IMTA system with significantly lower feed conversion ratios (FCRs) and higher feed efficiency (FE) in comparison to the fed fish monoculture system. Yet, organic filter feeders displayed 100% survival, and increased shell growth, while deposit feeders exhibited successful survival and significant weight gain. In the comparison between FM-IMTA and LFM-IMTA, fed fish in FM-IMTA showed higher WG, SGR, and FE with lower FCR. Environmental parameters like temperature, oxygen, and nutrient concentrations fluctuated but generally improved in the IMTA system, indicating lower mesotrophic conditions. Sediment fatty acid profiles differed between systems and toxicity assessments, which suggested a lower impact in IMTA and FM-IMTA systems. The sediment microbial community displayed high similarity within IMTA systems and between FM-IMTA and LFM-IMTA. These findings underscore the potential of IMTA systems for sustainable aquaculture, emphasizing improved growth performance and reduced environmental impact, particularly when using fish meal feeds.}, keywords = {}, pubstate = {published}, tppubtype = {article} } This study aimed to evaluate the efficiency of an integrated multi-trophic aquaculture (IMTA) system comprising co-cultured fed fish and organic extractive species representing three distinct trophic levels as well as the impact and potential utilization of two commercially available fish feeds made up of 35% fish meal (FM) and 20% fish meal (LFM) ingredients, using a multi-indicator assessment approach. Significant alterations were observed in growth performance indicators (GPIs), water and sediment quality indices, toxicity tests and biomarkers within the IMTA system. The fish survival, weight gain (WG), and specific growth rate (SGR) were higher in the IMTA system with significantly lower feed conversion ratios (FCRs) and higher feed efficiency (FE) in comparison to the fed fish monoculture system. Yet, organic filter feeders displayed 100% survival, and increased shell growth, while deposit feeders exhibited successful survival and significant weight gain. In the comparison between FM-IMTA and LFM-IMTA, fed fish in FM-IMTA showed higher WG, SGR, and FE with lower FCR. Environmental parameters like temperature, oxygen, and nutrient concentrations fluctuated but generally improved in the IMTA system, indicating lower mesotrophic conditions. Sediment fatty acid profiles differed between systems and toxicity assessments, which suggested a lower impact in IMTA and FM-IMTA systems. The sediment microbial community displayed high similarity within IMTA systems and between FM-IMTA and LFM-IMTA. These findings underscore the potential of IMTA systems for sustainable aquaculture, emphasizing improved growth performance and reduced environmental impact, particularly when using fish meal feeds. |
2023 |
Rigos, George; Glaropoulos, Alexis; Tzokas, Kostantinos; Gourzioti, Evgenia; Kogiannou, Dimitra; Golomazou, Eleni Journal of Fish Diseases, pp. jfd.13854, 2023, ISSN: 0140-7775, 1365-2761. @article{rigos_field_2023, title = {A field evaluation of orally administered praziquantel against the gill fluke \textit{Sparicotyle chrysophrii} infecting gilthead seabream ( \textit{Sparus aurata} )}, author = {George Rigos and Alexis Glaropoulos and Kostantinos Tzokas and Evgenia Gourzioti and Dimitra Kogiannou and Eleni Golomazou}, url = {https://imbbc.hcmr.gr/wp-content/uploads/2023/09/2023-Rigos-JFD-pre-print-46.pdf https://onlinelibrary.wiley.com/doi/10.1111/jfd.13854}, doi = {10.1111/jfd.13854}, issn = {0140-7775, 1365-2761}, year = {2023}, date = {2023-09-08}, urldate = {2023-09-11}, journal = {Journal of Fish Diseases}, pages = {jfd.13854}, keywords = {}, pubstate = {published}, tppubtype = {article} } |
Kogiannou, Dimitra; Nikoloudaki, Chrysanthi; Valsamidi, Vasilia; Kotsiri, Mado; Golomazou, Eleni; Rigos, George Pharmacokinetics of praziquantel in gilthead seabream (Sparus aurata) plasma and gills Journal Article Aquaculture, 577 , pp. 739975, 2023, ISSN: 00448486. @article{kogiannou_pharmacokinetics_2023, title = {Pharmacokinetics of praziquantel in gilthead seabream (Sparus aurata) plasma and gills}, author = {Dimitra Kogiannou and Chrysanthi Nikoloudaki and Vasilia Valsamidi and Mado Kotsiri and Eleni Golomazou and George Rigos}, url = {https://imbbc.hcmr.gr/wp-content/uploads/2023/09/2023-Kogiannou-AQUA-pre-print45.pdf https://linkinghub.elsevier.com/retrieve/pii/S0044848623007494}, doi = {10.1016/j.aquaculture.2023.739975}, issn = {00448486}, year = {2023}, date = {2023-09-06}, urldate = {2023-09-07}, journal = {Aquaculture}, volume = {577}, pages = {739975}, keywords = {}, pubstate = {published}, tppubtype = {article} } |
Nanou, Evangelia; Kotsiri, Mado; Kogiannou, Dimitra; Katsouli, Maria; Grigorakis, Kriton Foods, 12 (3), pp. 505, 2023, ISSN: 2304-8158. @article{nanou_consumer_2023, title = {Consumer Perception of Freshness and Volatile Composition of Fresh Gilthead Seabream and Seabass in Active Packaging with and without CO2-Emitting Pads}, author = {Evangelia Nanou and Mado Kotsiri and Dimitra Kogiannou and Maria Katsouli and Kriton Grigorakis}, url = {https://imbbc.hcmr.gr/wp-content/uploads/2023/02/2023-Nanou-foods-10.pdf https://www.mdpi.com/2304-8158/12/3/505}, doi = {10.3390/foods12030505}, issn = {2304-8158}, year = {2023}, date = {2023-02-14}, urldate = {2023-02-15}, journal = {Foods}, volume = {12}, number = {3}, pages = {505}, abstract = {Active packaging with CO2-emitters (pads) has recently been used for shelf-life extension of fresh fish. The aim of this study was to identify consumer attitudes towards fresh fish packaging, to examine whether Greek consumers prefer active packaging with pad over active packaging without pad, to investigate any perceived differences in the sensory freshness of the fish, and to relate consumer perception to volatile composition of fish fillets. In total, 274 consumers participated in the study which included freshness sensory evaluation of gilthead seabream (Sparus aurata) and seabass (Dicentrarchuslabrax), whole-gutted and filleted, raw and cooked, at high quality and at the end of high-quality shelf-life. Samples were packed under modified atmosphere either with a pad or without. Results showed that consumers preferred packages with pads, especially at the end of high quality shelf-life. They perceived raw samples packed with a pad to be fresher and closer to the ideal product, and also had a higher purchase intention towards them. Cooked samples were not perceived differently. Consumers’ perception was in accordance with the GC-MS findings in the volatile compounds that function as freshness or spoilage indicators. Most participants were positive towards fresh fish packaging although they usually buy unpacked fresh fish. Our results suggest that active packaging with CO2 emitters contribute to freshness preservation and that it has a positive potential in the Greek market.}, keywords = {}, pubstate = {published}, tppubtype = {article} } Active packaging with CO2-emitters (pads) has recently been used for shelf-life extension of fresh fish. The aim of this study was to identify consumer attitudes towards fresh fish packaging, to examine whether Greek consumers prefer active packaging with pad over active packaging without pad, to investigate any perceived differences in the sensory freshness of the fish, and to relate consumer perception to volatile composition of fish fillets. In total, 274 consumers participated in the study which included freshness sensory evaluation of gilthead seabream (Sparus aurata) and seabass (Dicentrarchuslabrax), whole-gutted and filleted, raw and cooked, at high quality and at the end of high-quality shelf-life. Samples were packed under modified atmosphere either with a pad or without. Results showed that consumers preferred packages with pads, especially at the end of high quality shelf-life. They perceived raw samples packed with a pad to be fresher and closer to the ideal product, and also had a higher purchase intention towards them. Cooked samples were not perceived differently. Consumers’ perception was in accordance with the GC-MS findings in the volatile compounds that function as freshness or spoilage indicators. Most participants were positive towards fresh fish packaging although they usually buy unpacked fresh fish. Our results suggest that active packaging with CO2 emitters contribute to freshness preservation and that it has a positive potential in the Greek market. |
Rigos, George; Kogiannou, Dimitra Antimicrobial drugs in aquaculture: use and abuse Incollection Present Knowledge in Food Safety, pp. 142–161, Elsevier, 2023, ISBN: 9780128194706. @incollection{rigos_antimicrobial_2023, title = {Antimicrobial drugs in aquaculture: use and abuse}, author = {George Rigos and Dimitra Kogiannou}, url = {https://imbbc.hcmr.gr/wp-content/uploads/2022/10/2022-Rigos-preprint-72.pdf https://linkinghub.elsevier.com/retrieve/pii/B9780128194706000275}, doi = {10.1016/B978-0-12-819470-6.00027-5}, isbn = {9780128194706}, year = {2023}, date = {2023-01-02}, urldate = {2022-10-24}, booktitle = {Present Knowledge in Food Safety}, pages = {142--161}, publisher = {Elsevier}, keywords = {}, pubstate = {published}, tppubtype = {incollection} } |
2022 |
Kogiannou, Dimitra; Kotsiri, Mado; Grigorakis, Kriton A method to assess gaping in Sparidae species fillets Journal Article Aquaculture Research, 53 (2), pp. 689–693, 2022, ISSN: 1355-557X, 1365-2109. @article{kogiannou_method_2022, title = {A method to assess gaping in Sparidae species fillets}, author = {Dimitra Kogiannou and Mado Kotsiri and Kriton Grigorakis}, url = {https://imbbc.hcmr.gr/wp-content/uploads/2022/01/2021-Kogianou-ARE-preprint-88.pdf https://onlinelibrary.wiley.com/doi/10.1111/are.15590}, doi = {10.1111/are.15590}, issn = {1355-557X, 1365-2109}, year = {2022}, date = {2022-01-01}, urldate = {2022-01-12}, journal = {Aquaculture Research}, volume = {53}, number = {2}, pages = {689--693}, keywords = {}, pubstate = {published}, tppubtype = {article} } |
2021 |
Kogiannou, Dimitra; Nikoloudaki, Chrysanthi; Katharios, Pantelis; Triga, Adriana; Rigos, George Evaluation of absorption and depletion of florfenicol in European seabass textitDicentrarchus labrax Journal Article Veterinary Medicine and Science, 7 (3), pp. 987–997, 2021, ISSN: 2053-1095, 2053-1095. @article{kogiannou_evaluation_2021, title = {Evaluation of absorption and depletion of florfenicol in European seabass textitDicentrarchus labrax}, author = {Dimitra Kogiannou and Chrysanthi Nikoloudaki and Pantelis Katharios and Adriana Triga and George Rigos}, url = {https://imbbc.hcmr.gr/wp-content/uploads/2021/06/2021-Kogiannou-VetMed-Sci-40.pdf https://onlinelibrary.wiley.com/doi/10.1002/vms3.415}, doi = {10.1002/vms3.415}, issn = {2053-1095, 2053-1095}, year = {2021}, date = {2021-05-01}, urldate = {2021-06-24}, journal = {Veterinary Medicine and Science}, volume = {7}, number = {3}, pages = {987--997}, keywords = {}, pubstate = {published}, tppubtype = {article} } |
Rigos, George; Kogiannou, Dimitra; Vasilaki, Antigoni; Kotsiri, Mado Evaluation of Praziquantel Efficacy against Zeuxapta seriolae Infections in Greater Amberjack, Seriola dumerili Journal Article Applied Sciences, 11 (10), pp. 4656, 2021, ISSN: 2076-3417. @article{rigos_evaluation_2021, title = {Evaluation of Praziquantel Efficacy against Zeuxapta seriolae Infections in Greater Amberjack, Seriola dumerili}, author = {George Rigos and Dimitra Kogiannou and Antigoni Vasilaki and Mado Kotsiri}, url = {https://imbbc.hcmr.gr/wp-content/uploads/2021/06/2021-Rigos-ApllSciences-41l.pdf https://www.mdpi.com/2076-3417/11/10/4656}, doi = {10.3390/app11104656}, issn = {2076-3417}, year = {2021}, date = {2021-05-01}, urldate = {2021-06-24}, journal = {Applied Sciences}, volume = {11}, number = {10}, pages = {4656}, abstract = {The aim of this study was to evaluate the efficacy of dietary praziquantel (PZQ), a promising fish anthelminthic, against Zeuxapta seriolae, a lethal ectoparasite of greater amberjack (Seriola dumerili Risso) farmed in the Mediterranean and elsewhere. The trial was carried out in small cages (3 m3) in situ, harbouring fish (125 ± 14 g) naturally infected with Z. seriolae, at 25 ± 1 °C water temperature. Praziquantel-medicated diet (150 mg PZQ/kg fish) was delivered for three days against a control group. Measurement of both adults and oncomiracidia of Z. seriolae in sampled gill arches revealed significant differences between the tested groups (PZQ: 19.3 ± 9.8 vs. Control: 3.8 ± 6.3). Considering an estimated efficacy of 80.4% in the medicated fish, the present study indicates that oral PZQ treatments can confront Z. seriolae infections considerably in farmed greater amberjack and, perhaps, replace the commonly used hydrogen peroxidase baths.}, keywords = {}, pubstate = {published}, tppubtype = {article} } The aim of this study was to evaluate the efficacy of dietary praziquantel (PZQ), a promising fish anthelminthic, against Zeuxapta seriolae, a lethal ectoparasite of greater amberjack (Seriola dumerili Risso) farmed in the Mediterranean and elsewhere. The trial was carried out in small cages (3 m3) in situ, harbouring fish (125 ± 14 g) naturally infected with Z. seriolae, at 25 ± 1 °C water temperature. Praziquantel-medicated diet (150 mg PZQ/kg fish) was delivered for three days against a control group. Measurement of both adults and oncomiracidia of Z. seriolae in sampled gill arches revealed significant differences between the tested groups (PZQ: 19.3 ± 9.8 vs. Control: 3.8 ± 6.3). Considering an estimated efficacy of 80.4% in the medicated fish, the present study indicates that oral PZQ treatments can confront Z. seriolae infections considerably in farmed greater amberjack and, perhaps, replace the commonly used hydrogen peroxidase baths. |
Kogiannou, Dimitra; Nikoloudaki, Chrysanthi; Rigos, George Absorption and depletion of dietary administered praziquantel in greater amberjack, Seriola dumerili Journal Article Aquaculture, 535 , pp. 736354, 2021, ISSN: 00448486. @article{kogiannou_absorption_2021, title = {Absorption and depletion of dietary administered praziquantel in greater amberjack, Seriola dumerili}, author = {Dimitra Kogiannou and Chrysanthi Nikoloudaki and George Rigos}, url = {https://linkinghub.elsevier.com/retrieve/pii/S0044848621000168}, doi = {10.1016/j.aquaculture.2021.736354}, issn = {00448486}, year = {2021}, date = {2021-01-01}, urldate = {2021-02-02}, journal = {Aquaculture}, volume = {535}, pages = {736354}, keywords = {}, pubstate = {published}, tppubtype = {article} } |
2020 |
Kogiannou, Dimitra; Rigos, George Praziquantel depletion from muscle plus skin tissue of gilthead sea bream (Sparus aurata) Journal Article Mediterranean Marine Science, 22 (1), pp. 121–124, 2020, ISSN: 1791-6763, 1108-393X, (AQUA). @article{kogiannou_praziquantel_2020, title = {Praziquantel depletion from muscle plus skin tissue of gilthead sea bream (Sparus aurata)}, author = {Dimitra Kogiannou and George Rigos}, url = {https://ejournals.epublishing.ekt.gr/index.php/hcmr-med-mar-sc/article/view/25126}, doi = {10.12681/mms.25126}, issn = {1791-6763, 1108-393X}, year = {2020}, date = {2020-11-01}, urldate = {2022-01-17}, journal = {Mediterranean Marine Science}, volume = {22}, number = {1}, pages = {121--124}, abstract = {The depletion pattern of praziquantel (PZQ) from gilthead sea bream (Sparus aurata) muscle plus skin was determined in this study. Fish averaging 100.2 ± 17.7 g and kept at 25oC received a PZQ-dosing of 150 mg/kg fish for 3 days. Muscle plus skin of each of ten fish were collected on days 1, 2, 3, 4, and 6 days post-treatment. Depletion of PZQ from the edible gilthead sea bream tissues was rapid, as its concentrations declined to 0.04 μg/g as early as 24 h post-treatment, while was undetectable at 72 h. This information confirms the fact that PZQ is depleted fast from farmed animals including fish such as the gilthead sea bream and its levels in edible tissues failed below the detection limit in approximately 75 dd.}, note = {AQUA}, keywords = {}, pubstate = {published}, tppubtype = {article} } The depletion pattern of praziquantel (PZQ) from gilthead sea bream (Sparus aurata) muscle plus skin was determined in this study. Fish averaging 100.2 ± 17.7 g and kept at 25oC received a PZQ-dosing of 150 mg/kg fish for 3 days. Muscle plus skin of each of ten fish were collected on days 1, 2, 3, 4, and 6 days post-treatment. Depletion of PZQ from the edible gilthead sea bream tissues was rapid, as its concentrations declined to 0.04 μg/g as early as 24 h post-treatment, while was undetectable at 72 h. This information confirms the fact that PZQ is depleted fast from farmed animals including fish such as the gilthead sea bream and its levels in edible tissues failed below the detection limit in approximately 75 dd. |
Rigos, George; Katharios, Pantelis; Kogiannou, Dimitra; Cascarano, Chiara M Infectious diseases and treatment solutions of farmed greater amberjack Seriola dumerili with particular emphasis in Mediterranean region Journal Article Reviews in Aquaculture, pp. raq.12476, 2020, ISSN: 1753-5123, 1753-5131. @article{rigos_infectious_2020, title = {Infectious diseases and treatment solutions of farmed greater amberjack Seriola dumerili with particular emphasis in Mediterranean region}, author = {George Rigos and Pantelis Katharios and Dimitra Kogiannou and Chiara M Cascarano}, url = {https://onlinelibrary.wiley.com/doi/abs/10.1111/raq.12476}, doi = {10.1111/raq.12476}, issn = {1753-5123, 1753-5131}, year = {2020}, date = {2020-07-01}, urldate = {2020-09-02}, journal = {Reviews in Aquaculture}, pages = {raq.12476}, abstract = {Abstract Greater amberjack (Seriola dumerili) is a very promising candidate for the diversification of the Mediterranean aquaculture due to its high demand, excellent flesh quality and high market prices. Its production expansion has, however, failed so far, due to several bottlenecks mainly related to pathology. This review addresses the major pathogens, which hinder the culture of greater amberjack with special focus in the Mediterranean region, and highlights possible treatment solutions. Among the important recorded pathogens of caged greater amberjack in the Mediterranean, the gill monogenean Zeuxapta seriolae seems to be the most problematic, causing significant losses. While formalin immersions are inefficient to combat this parasite, baths with hydrogen peroxide are extremely effective and praziquantel administration could be a more practical in-feed treatment solution. The digenean blood flukes, Paradeontacylix spp., also account for important losses in greater amberjack farms in the same region. Dietary administration of praziquantel constitutes an effective therapeutic measure against those infections. Vibrio harveyi is also a bacterial pathogen severely affecting fish maintained both in land-based facilities and in cages, whereas Epitheliocystis is a disease reported frequently that can be fatal when it occurs at early stages. Skin flukes such as Benedenia seriolae and Neobenedenia girellae as well as other parasites bacteria and viruses mentioned herein, which have caused substantial losses in Asian enterprises, but have not been identified yet in greater amberjack farmed in the Mediterranean, should be considered as potential threats.}, keywords = {}, pubstate = {published}, tppubtype = {article} } Abstract Greater amberjack (Seriola dumerili) is a very promising candidate for the diversification of the Mediterranean aquaculture due to its high demand, excellent flesh quality and high market prices. Its production expansion has, however, failed so far, due to several bottlenecks mainly related to pathology. This review addresses the major pathogens, which hinder the culture of greater amberjack with special focus in the Mediterranean region, and highlights possible treatment solutions. Among the important recorded pathogens of caged greater amberjack in the Mediterranean, the gill monogenean Zeuxapta seriolae seems to be the most problematic, causing significant losses. While formalin immersions are inefficient to combat this parasite, baths with hydrogen peroxide are extremely effective and praziquantel administration could be a more practical in-feed treatment solution. The digenean blood flukes, Paradeontacylix spp., also account for important losses in greater amberjack farms in the same region. Dietary administration of praziquantel constitutes an effective therapeutic measure against those infections. Vibrio harveyi is also a bacterial pathogen severely affecting fish maintained both in land-based facilities and in cages, whereas Epitheliocystis is a disease reported frequently that can be fatal when it occurs at early stages. Skin flukes such as Benedenia seriolae and Neobenedenia girellae as well as other parasites bacteria and viruses mentioned herein, which have caused substantial losses in Asian enterprises, but have not been identified yet in greater amberjack farmed in the Mediterranean, should be considered as potential threats. |
Rigos, George; Kogiannou, Dimitra; Padrós, Francesc; Cristòfol, Carles; Florio, Daniela; Fioravanti, Marialetizia; Zarza, Carlos Reviews in Aquaculture, pp. raq.12523, 2020, ISSN: 1753-5123, 1753-5131. @article{rigos_best_2020, title = {Best therapeutic practices for the use of antibacterial agents in finfish aquaculture: a particular view on European seabass ( textitDicentrarchus labrax ) and gilthead seabream ( textitSparus aurata ) in Mediterranean aquaculture}, author = {George Rigos and Dimitra Kogiannou and Francesc Padrós and Carles Cristòfol and Daniela Florio and Marialetizia Fioravanti and Carlos Zarza}, url = {https://onlinelibrary.wiley.com/doi/10.1111/raq.12523 https://imbbc.hcmr.gr/wp-content/uploads/2020/12/2020-Rigos-RIAqua-56.pdf}, doi = {10.1111/raq.12523}, issn = {1753-5123, 1753-5131}, year = {2020}, date = {2020-01-01}, urldate = {2020-12-29}, journal = {Reviews in Aquaculture}, pages = {raq.12523}, keywords = {}, pubstate = {published}, tppubtype = {article} } |
Kogiannou, Dimitra; Rigos, George Depletion of praziquantel from gilthead sea bream (Sparus aurata) muscle plus skin Journal Article Medit. Mar. Sci., 2020, ISSN: 1791-6763, 1108-393X. @article{kogiannou_depletion_2020, title = {Depletion of praziquantel from gilthead sea bream (Sparus aurata) muscle plus skin}, author = {Dimitra Kogiannou and George Rigos}, url = {https://ejournals.epublishing.ekt.gr/index.php/hcmr-med-mar-sc/article/view/25126}, doi = {10.12681/mms.25126}, issn = {1791-6763, 1108-393X}, year = {2020}, date = {2020-01-01}, urldate = {2021-02-24}, journal = {Medit. Mar. Sci.}, abstract = {The depletion pattern of praziquantel (PZQ) from gilthead sea bream (Sparus aurata) muscle plus skin was determined in this study. Fish averaging 100.2 ± 17.7 g and kept at 25oC received a PZQ-dosing of 150 mg/kg fish for 3 days. Muscle plus skin of each of ten fish were collected on days 1, 2, 3, 4, and 6 days post-treatment. Depletion of PZQ from the edible gilthead sea bream tissues was rapid, as its concentrations declined to 0.04 μg/g as early as 24 h post-treatment, while was undetectable at 72 h. This information confirms the fact that PZQ is depleted fast from farmed animals including fish such as the gilthead sea bream and its levels in edible tissues failed below the detection limit in approximately 75 dd.}, keywords = {}, pubstate = {published}, tppubtype = {article} } The depletion pattern of praziquantel (PZQ) from gilthead sea bream (Sparus aurata) muscle plus skin was determined in this study. Fish averaging 100.2 ± 17.7 g and kept at 25oC received a PZQ-dosing of 150 mg/kg fish for 3 days. Muscle plus skin of each of ten fish were collected on days 1, 2, 3, 4, and 6 days post-treatment. Depletion of PZQ from the edible gilthead sea bream tissues was rapid, as its concentrations declined to 0.04 μg/g as early as 24 h post-treatment, while was undetectable at 72 h. This information confirms the fact that PZQ is depleted fast from farmed animals including fish such as the gilthead sea bream and its levels in edible tissues failed below the detection limit in approximately 75 dd. |
2019 |
Alexi, Niki; Kogiannou, Dimitra; Oikonomopoulou, Ioanna; Kalogeropoulos, Nick; Byrne, Derek V; Grigorakis, Kriton Food Chemistry, 301 , pp. 125263, 2019, ISSN: 03088146. @article{alexi_culinary_2019, title = {Culinary preparation effects on lipid and sensory quality of farmed gilthead seabream (Sparus aurata) and meagre (Argyrosomus regius): An inter-species comparison}, author = {Niki Alexi and Dimitra Kogiannou and Ioanna Oikonomopoulou and Nick Kalogeropoulos and Derek V Byrne and Kriton Grigorakis}, url = {https://linkinghub.elsevier.com/retrieve/pii/S0308814619313731}, doi = {10.1016/j.foodchem.2019.125263}, issn = {03088146}, year = {2019}, date = {2019-12-01}, urldate = {2020-10-20}, journal = {Food Chemistry}, volume = {301}, pages = {125263}, keywords = {}, pubstate = {published}, tppubtype = {article} } |
2016 |
Rigos, G; Mladineo, I; Nikoloudaki, C; Vrbatovic, A; Kogiannou, D Folia Parasitologica, 63 , 2016, ISSN: 00155683, (Publisher: Czech Academy of Sciences). @article{rigos_application_2016, title = {Application of compound mixture of caprylic acid, iron and mannan oligosaccharide against Sparicotyle chrysophrii (Monogenea: Polyopisthocotylea) in gilthead sea bream, Sparus aurata}, author = {G Rigos and I Mladineo and C Nikoloudaki and A Vrbatovic and D Kogiannou}, url = {https://www.scopus.com/inward/record.uri?eid=2-s2.0-85019231071&doi=10.14411%2ffp.2016.027&partnerID=40&md5=5b741f866a7cc8a0e42e3efe344fce51}, doi = {10.14411/fp.2016.027}, issn = {00155683}, year = {2016}, date = {2016-01-01}, journal = {Folia Parasitologica}, volume = {63}, abstract = {We have evaluated the therapeutic effect of a compound mixture of caprylic acid (200 mg/kg fish), organic iron (0.2% of diet) and mannan oligosaccharide (0.4% of diet) in gilthead sea bream, Sparus aurata Linnaeus, infected with Sparicotyle chrysophrii Beneden et Hesse, 1863 in controlled conditions. One hundred and ten reared and S. chrysophrii-free fish (197 g) located in a cement tank were infected by the parasite two weeks following the addition of 150 S. chrysophrii-infected fish (70 g). Growth parameters and gill parasitic load were measured in treated against control fish after a ten-week-period. Differences in final weight, feed conversion ratio, specific growth rate and feed efficiency were not statistically significant between the experimental groups, suggesting no evident effect with respect to fish growth during the study period. Although the prevalence of S. chrysophrii was not affected by the mixture at the end of the experiment, the number of adults and larvae was significantly lower. The mean intensity encompassing the number of adults and larvae was 8.1 in treated vs 17.7 in control fish. Individual comparisons of gill arches showed that the preferred parasitism site for S. chrysophrii it the outermost or fourth gill arch, consistently apparent in fish fed the modified diet and in control fish. In conclusion, the combined application of caprylic acid, organic iron and mannan oligosaccharide can significantly affect the evolution of infection with S. chrysophrii in gilthead sea bream, being capable of reducing adult and larval stages of the monogenean. However, no difference in growth improvement was observed after the trial period, potentially leaving space for further optimisation of the added dietary compounds. © Institute of Parasitology, Biology Centre CAS.}, note = {Publisher: Czech Academy of Sciences}, keywords = {}, pubstate = {published}, tppubtype = {article} } We have evaluated the therapeutic effect of a compound mixture of caprylic acid (200 mg/kg fish), organic iron (0.2% of diet) and mannan oligosaccharide (0.4% of diet) in gilthead sea bream, Sparus aurata Linnaeus, infected with Sparicotyle chrysophrii Beneden et Hesse, 1863 in controlled conditions. One hundred and ten reared and S. chrysophrii-free fish (197 g) located in a cement tank were infected by the parasite two weeks following the addition of 150 S. chrysophrii-infected fish (70 g). Growth parameters and gill parasitic load were measured in treated against control fish after a ten-week-period. Differences in final weight, feed conversion ratio, specific growth rate and feed efficiency were not statistically significant between the experimental groups, suggesting no evident effect with respect to fish growth during the study period. Although the prevalence of S. chrysophrii was not affected by the mixture at the end of the experiment, the number of adults and larvae was significantly lower. The mean intensity encompassing the number of adults and larvae was 8.1 in treated vs 17.7 in control fish. Individual comparisons of gill arches showed that the preferred parasitism site for S. chrysophrii it the outermost or fourth gill arch, consistently apparent in fish fed the modified diet and in control fish. In conclusion, the combined application of caprylic acid, organic iron and mannan oligosaccharide can significantly affect the evolution of infection with S. chrysophrii in gilthead sea bream, being capable of reducing adult and larval stages of the monogenean. However, no difference in growth improvement was observed after the trial period, potentially leaving space for further optimisation of the added dietary compounds. © Institute of Parasitology, Biology Centre CAS. |