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Young T, Walker SP, Alfaro AC, Fletcher LM, Murray JS, Lulijwa R, Symonds J. Impact of acute handling stress, anaesthesia, and euthanasia on fish plasma biochemistry: implications for veterinary screening and metabolomic sampling. FISH PHYSIOLOGY AND BIOCHEMISTRY 2019; 45:1485-1494. [PMID: 31240506 DOI: 10.1007/s10695-019-00669-8] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/14/2018] [Accepted: 06/03/2019] [Indexed: 06/09/2023]
Abstract
Impacts of pre-sampling practices on fish plasma biochemistry may bias the outcome of a study if not considered within the general sampling strategy. Acute handling stresses can be imposed on fish during capture, and it is common practice to immobilise fish via sedation prior to obtaining blood samples for non-lethal extraction purposes, and/or to reduce stress, pain, or suffering before being euthanised. We investigated these potential influences using a Chinook salmon model (Oncorhynchus tshawytscha) by measuring levels of 119 biochemical targets comprising ions, metabolites, and enzymes in plasma. Multivariate analyses showed that 2 min of confinement with mild handling manipulation led to a significant departure from baseline metabolism, which was further exasperated during a prolonged 5-min challenge. These changes were characterised by a disruption in osmoregulation, a switch towards anaerobic metabolism, and shifts in ammonia recycling, among others. Sedation of fish with clove oil and AQUI-S® had major impacts on plasma biochemical profiles, with alterations signalling changes in glycolytic metabolism, respiratory modes, carbon flux through the TCA cycle, and lipid compartmentalisation. Sedation also enhanced levels of plasma amino acids, revealing a key difference between responses to handling stress and sedation. These results demonstrate that pre-harvest practices should be carefully managed during fish sampling for biochemical/metabolomic-based analyses, and if manipulations are essential, they should be standardised.
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Affiliation(s)
- Tim Young
- Aquaculture Biotechnology Research Group, School of Science, Faculty of Health and Environmental Sciences, Auckland University of Technology, Private Bag 92006, Auckland, 1142, New Zealand
- The Centre for Biomedical and Chemical Sciences, School of Science, Faculty of Health and Environmental Sciences, Auckland University of Technology, Private Bag 92006, Auckland, 1142, New Zealand
| | | | - Andrea C Alfaro
- Aquaculture Biotechnology Research Group, School of Science, Faculty of Health and Environmental Sciences, Auckland University of Technology, Private Bag 92006, Auckland, 1142, New Zealand.
| | | | | | - Ronald Lulijwa
- Aquaculture Biotechnology Research Group, School of Science, Faculty of Health and Environmental Sciences, Auckland University of Technology, Private Bag 92006, Auckland, 1142, New Zealand
- Rwebitaba Zonal Agricultural Research and Development Institute (Rwebitaba-ZARDI), National Agricultural Research Organisation (NARO), P. O. Box 96, Fort Portal, Uganda
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Bahi A, Guardiola FA, Esteban MA. A time course study of glucose levels and innate immune response in gilthead seabream (Sparus aurata L.) after exposure to clove oil-eugenol derived anaesthetic. FISH & SHELLFISH IMMUNOLOGY 2018; 77:280-285. [PMID: 29609029 DOI: 10.1016/j.fsi.2018.03.057] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/22/2018] [Revised: 03/22/2018] [Accepted: 03/29/2018] [Indexed: 06/08/2023]
Abstract
Clove oil is used as an anaesthetic for many species of fish worldwide; however, relatively few studies have assessed its effects on the innate immune response on these species. The present work aimed to investigate the effects of clove oil-eugenol derived anaesthetic on some humoral and cellular immune response in gilthead seabream (Sparus aurata L.). To compare with an unexposed control group, fish were exposed to 55 ppm clove oil for 5 min, before being sampled at 1, 24 and 48 h post-exposure. Serum glucose level was also measured to obtain information on the fish physiological response after clove oil anaesthesia. One hour after exposure the haemolytic complement activity of fish was lower than in the unexposed group. By contrast, the leucocyte peroxidase activity in head-kidney was significantly stimulated 24 h after exposure to clove oil-eugenol. The rest of innate immune parameters evaluated and the glucose levels not were affected by clove oil exposure at any sampling point. Overall, the use of clove oil at 55 ppm as anaesthetic did not seem to alter the innate immune response and neither did it trigger a stress response. The use of clove oil-eugenol derived had become common practice in aquaculture, and its use with gilthead seabream can be considered safe as it does not cause immunodepression in anesthetized fish.
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Affiliation(s)
- A Bahi
- Laboratory of Analysis, Treatment and Valorization of Pollutants of the Environment and Products, Faculty of Pharmacy, University of Monastir, Tunisia
| | - F A Guardiola
- Centro Interdisciplinar de Investigação Marinha e Ambiental (CIIMAR), University of Porto, Terminal de Cruzeiros do Porto de Leixões, Av. General Norton de Matos s/n, 4450-208, Porto, Portugal; Department of Cell Biology and Histology, Faculty of Biology, Campus Regional de Excelencia Internacional "Campus Mare Nostrum", University of Murcia, 30100 Murcia, Spain.
| | - M A Esteban
- Department of Cell Biology and Histology, Faculty of Biology, Campus Regional de Excelencia Internacional "Campus Mare Nostrum", University of Murcia, 30100 Murcia, Spain.
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Marandel L, Gaudin P, Guéraud F, Glise S, Herman A, Plagnes-Juan E, Véron V, Panserat S, Labonne J. A reassessment of the carnivorous status of salmonids: Hepatic glucokinase is expressed in wild fish in Kerguelen Islands. THE SCIENCE OF THE TOTAL ENVIRONMENT 2018; 612:276-285. [PMID: 28850848 DOI: 10.1016/j.scitotenv.2017.08.247] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/26/2017] [Revised: 08/23/2017] [Accepted: 08/24/2017] [Indexed: 06/07/2023]
Abstract
Salmonids belong to a high trophic level and are thus considered as strictly carnivorous species, metabolically adapted for high catabolism of proteins and low utilisation of dietary carbohydrates. However they conserved a "mammalian-type" nutritional regulation of glucokinase encoding gene and its enzymatic activity by dietary carbohydrates which remains puzzling regarding their dietary regime. The present study investigates the hypothesis that this conservation could be linked to a real consumption by trout of this nutrient in their natural habitat. To do so, brown trout were sampled in the sub-Antarctic Kerguelen Islands, a site presenting oligotrophic hydrosystems and no local freshwater fish fauna prior the introduction of salmonids fifty years ago. Qualitative and quantitative analysis of carbohydrate content within Kerguelen trout stomachs demonstrate that these animals are fed on food resources containing digestible carbohydrates. Additionally, glycaemia and more particularly gck mRNA level and gck enzymatic activity prove that Kerguelen trout digest and metabolise dietary carbohydrates. Physiological and molecular analyses performed in the present study thus strongly evidence for consumption of dietary carbohydrates by wild trout in natural environments. Investigating differences between Kerguelen individuals, we found that smaller individuals presented higher glycaemia, as well as higher carbohydrates contents in stomach. However no relationship between scaled mass index and any physiological indicator was found. Thus it appears that Kerguelen trout do not turn to carbohydrate diet because of a different condition index, or that the consumption of carbohydrates does not lead to a generally degraded physiological status. As a conclusion, our findings may explain the evolutionary conservation of a "mammalian-type" nutritional regulation of gck by dietary carbohydrates in these carnivorous fish.
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Affiliation(s)
- Lucie Marandel
- INRA, Univ Pau & Pays Adour, UMR 1419, Nutrition, Metabolism and Aquaculture, Saint Pée sur Nivelle F-64310, France.
| | - Philippe Gaudin
- INRA, Univ Pau & Pays Adour, UMR 1224, ECOBIOP, Saint-Pée sur Nivelle F-64310, France'.
| | - François Guéraud
- INRA, Univ Pau & Pays Adour, UMR 1224, ECOBIOP, Saint-Pée sur Nivelle F-64310, France'.
| | - Stéphane Glise
- INRA, Univ Pau & Pays Adour, UMR 1224, ECOBIOP, Saint-Pée sur Nivelle F-64310, France'.
| | - Alexandre Herman
- INRA, Univ Pau & Pays Adour, UMR 1419, Nutrition, Metabolism and Aquaculture, Saint Pée sur Nivelle F-64310, France.
| | - Elisabeth Plagnes-Juan
- INRA, Univ Pau & Pays Adour, UMR 1419, Nutrition, Metabolism and Aquaculture, Saint Pée sur Nivelle F-64310, France.
| | - Vincent Véron
- INRA, Univ Pau & Pays Adour, UMR 1419, Nutrition, Metabolism and Aquaculture, Saint Pée sur Nivelle F-64310, France.
| | - Stéphane Panserat
- INRA, Univ Pau & Pays Adour, UMR 1419, Nutrition, Metabolism and Aquaculture, Saint Pée sur Nivelle F-64310, France.
| | - Jacques Labonne
- INRA, Univ Pau & Pays Adour, UMR 1224, ECOBIOP, Saint-Pée sur Nivelle F-64310, France'.
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Eslamloo K, Falahatkar B. Variations of some physiological and immunological parameters in Siberian sturgeon (Acipenser baerii, Brandt, 1869) subjected to an acute stressor. J APPL ANIM WELF SCI 2014; 17:29-42. [PMID: 24484309 DOI: 10.1080/10888705.2014.856243] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
Abstract
This study was carried out to investigate the effect of an acute stressor on the variation of some physiological and immunological parameters of Siberian sturgeon (Acipenser baerii) juveniles. Fish, reared in 3 tanks for 10 weeks, were used for this study. The acute stress of fish consisted of 2 min of air exposure stress. Plasma levels of cortisol, glucose, and lactate as well as lysozyme activity in plasma were measured before stress and 1 hr, 3 hr, 6 hr, 9 hr, 12 hr, and 24 hr after stress. The plasma cortisol significantly increased in the highest level 1 hr after stress, yet it gradually declined after 3 hr. The glucose significantly increased only 1 hr after stress. There was no significant difference between plasma lactate prestress and poststress. Moreover, lysozyme activity was enhanced by stress, thus reaching the highest level 9 hr after stress. The results of this study indicate that Siberian sturgeon not only have a rapid response to acute stress, but also a great capacity for recovery from stress, thus returning physiological parameters to prestress levels after 6 hr.
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Affiliation(s)
- Khalil Eslamloo
- a Fisheries Department, Faculty of Natural Resources , University of Guilan , Sowmeh Sara , Guilan , Iran
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Rub AMW, Jepsen N, Liedtke TL, Moser ML, Weber EPS. Surgical insertion of transmitters and telemetry methods in fisheries research. Am J Vet Res 2014; 75:402-16. [DOI: 10.2460/ajvr.75.4.402] [Citation(s) in RCA: 35] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
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Sánchez-Barrera IC, Albarracin W, Rojas MJ. Electroencephalographic spectrum power of sheep's brain after stunning. JOURNAL OF APPLIED ANIMAL RESEARCH 2013. [DOI: 10.1080/09712119.2013.822805] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
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Kanani HG, Soltani M, Mirzargar SS. Effect of tricainemethanesulfonate (MS222), clove oil and electro-anaesthesia on respiratory burst activity in whole blood and serum alternative complement response in rainbow trout (Oncorhynchus mykiss), during the narcosis stage. FISH & SHELLFISH IMMUNOLOGY 2013; 34:692-696. [PMID: 23220716 DOI: 10.1016/j.fsi.2012.11.021] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/08/2012] [Revised: 10/29/2012] [Accepted: 11/11/2012] [Indexed: 06/01/2023]
Abstract
There is a little available information on the suppressive effect of anaesthesia on immune response in fish, especially electro-anaesthesia. In the present study, two anaesthetics, MS222 (50 ppm), clove oil (25 ppm), and electro-anaesthesia were tested in rainbow trout (Oncorhynchus mykiss) during the narcosis stage in order to observe their effects on the innate immune system. The results showed that electro-anaesthesia reduces light emission in chemiluminescence assay both 1 and 24 h post anaesthesia. Clove oil and MS222 decreased light emission 24 h post anaesthesia. In addition, clove oil, MS222 and electro-anaesthesia had no effect on alternative complement (ACH50) response. From the perspective of aquaculture practice, these data show that the type of anaesthesia should be taken into account to avoid possible immunosuppression in rainbow trout.
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Affiliation(s)
- H Gholipour Kanani
- Department of Natural Resources, Faculty of Agriculture and Natural Resources, Gonbad Kavous University, Gonbad Kavous, Golestan, Iran
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Effect of Voltage and Exposure Time on Fish Response to Electrosedation. JOURNAL OF FISH AND WILDLIFE MANAGEMENT 2012. [DOI: 10.3996/102011-jfwm-060] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
Abstract
Abstract
Chemical sedatives requiring withdrawal (period of time where fish are held posttreatment to allow for tissue drug residues to dissipate) may be impractical for field use. As a result, fisheries professionals are beginning to investigate alternative methods that allow fish to be released immediately after treatment. To address the safety and efficacy of electrosedation as an “immediate-release” sedative approach, induction, recovery times, and blood chemistry of juvenile (211 ± 4 g, 26.1 ± 0.1 cm total length [mean ± SE]) hybrid striped bass (female Morone chrysops × male M. saxatilis) were evaluated after sedation by exposure to 100, 150, or 200 V of pulsed direct current (30 Hz and 25% duty cycle) for 4 or 8 s. All fish were sedated to stage IV sedation within 0.3 min, regardless of voltage strength or exposure time. Recovery times varied significantly by the electrosedation treatment used, but all fish recovered within 2 min postinduction. Changes in blood chemistry were consistent with an acute stress response, but these effects were transient and no differences were observed among the electrosedation treatments. Results suggest that pulsed direct current electrosedation is an effective strategy for quickly and easily sedating juvenile hybrid striped bass and potentially other species of conservation or management concern.
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Heldwein CG, Silva LL, Reckziegel P, Barros FMC, Bürger ME, Baldisserotto B, Mallmann CA, Schmidt D, Caron BO, Heinzmann BM. Participation of the GABAergic system in the anesthetic effect of Lippia alba (Mill.) N.E. Brown essential oil. Braz J Med Biol Res 2012; 45:436-43. [PMID: 22473320 PMCID: PMC3854290 DOI: 10.1590/s0100-879x2012007500052] [Citation(s) in RCA: 33] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/17/2011] [Accepted: 03/20/2012] [Indexed: 02/03/2023] Open
Abstract
The objective of this study was to identify the possible involvement of the GABAergic system in the anesthetic effect of Lippia alba essential oil (EO). We propose a new animal model using silver catfish (Rhamdia quelen) exposed to an anesthetic bath to study the mechanism of action of EO. To observe the induction and potentiation of the anesthetic effect of EO, juvenile silver catfish (9.30 ± 1.85 g; 10.15 ± 0.95 cm; N = 6) were exposed to various concentrations of L. alba EO in the presence or absence of diazepam [an agonist of high-affinity binding sites for benzodiazepinic (BDZ) sites coupled to the GABA A receptor complex]. In another experiment, fish (N = 6) were initially anesthetized with the EO and then transferred to an anesthetic-free aquarium containing flumazenil (a selective antagonist of binding sites for BDZ coupled to the GABA A receptor complex) or water to assess recovery time from the anesthesia. In this case, flumazenil was used to observe the involvement of the GABA-BDZ receptor in the EO mechanism of action. The results showed that diazepam potentiates the anesthetic effect of EO at all concentrations tested. Fish exposed to diazepam and EO showed faster recovery from anesthesia when flumazenil was added to the recovery bath (12.0 ± 0.3 and 7.2 ± 0.7, respectively) than those exposed to water (9.2 ± 0.2 and 3.5 ± 0.3, respectively). In conclusion, the results demonstrated the involvement of the GABAergic system in the anesthetic effect of L. alba EO on silver catfish.
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Affiliation(s)
- C G Heldwein
- Departamento de Farmácia Industrial, Universidade Federal de Santa Maria, RS, Brasil
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