Enrichment for Laboratory Zebrafish—A Review of the Evidence and the Challenges

Animals, Journal Year: 2021, Volume and Issue: 11(3), P. 698 - 698

Published: March 5, 2021

Good practice for the housing and care of laboratory zebrafish Danio rerio is an increasingly discussed topic, with focus on appropriate water quality parameters, stocking densities, feeding regimes, anaesthesia analgesia practices, methods humane killing, more. One area current attention around provision environmental enrichment. Enrichment accepted as essential requirement meeting behavioural needs improving welfare many animal species, but in general, minimal. Some those involved use suggest there a ‘lack evidence’ that enrichment has benefits this or cite belief do not ‘need’ Concerns are also sometimes raised practical challenges providing enrichments, they may impact science being undertaken. However, growing body evidence suggesting various forms preferred by over barren tank, enriched conditions can improve reducing stress anxiety. This review explores effects have behaviour, physiology welfare, considers to facilities more house.

Language: Английский

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Physical enrichment research for captive fish: Time to focus on the DETAILS

Journal of Fish Biology, Journal Year: 2021, Volume and Issue: 99(3), P. 704 - 725

Published: May 4, 2021

Abstract Growing research effort has shown that physical enrichment (PE) can improve fish welfare and validity. However, the inclusion of PE does not always result in positive effects conflicting findings have highlighted many nuances involved. Effects are known to depend on species life stage tested, but may also vary with differences specific items used as between within studies. Reporting fine‐scale characteristics studies help reveal these factors. We conducted a survey PE‐focused published last 5 years examine current state methodological reporting. The results suggest some aspects adequately detailed. For example, amount dimensions objects were frequently omitted. Similarly, ecological relevance, or other justification, for was made explicit. Focusing ecologically relevant increasing level detail reported benefit future work we propose framework acronym DETAILS ( D imensions, E cological rationale, T iming enrichment, A mount, I nputs, L ighting S ocial environment). outline potential importance each elements this hope it aid reporting standardization across studies, ultimately aiding search more beneficial types development our understanding ability captive promote biologically behaviour.

Language: Английский

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Environmental enrichment increases aquatic animal welfare: A systematic review and meta‐analysis

Reviews in Aquaculture, Journal Year: 2021, Volume and Issue: 14(3), P. 1120 - 1135

Published: Dec. 7, 2021

Abstract With the rapid development of aquaculture and gradual decrease in fishery resources, aquatic animal welfare (AAW) has received increasing attention from protection organisations, government departments, biologists, fish culturists consumers. Although environmental enrichment (EE) can potentially benefit AAW, relevant results are sharply mixed, drivers for these discrepancies largely unclear. In this study, we conducted a series meta‐analyses to overcome knowledge gap. We firstly compiled full data set, consisting 1171 effect sizes 147 studies across 82 species then performed multilevel mixed‐effects model evaluate overall size conduct subsequent meta‐regression analyses. Overall, our showed that animals physically enriched environment had significantly improved AAW compared with their counterparts barren environments. For moderators, specific traits, taxa, stages, types colours strong positive EE effects on AAW. Subsequently, constructed set reran meta‐analysis, yielding substantially similar those obtained using set. Finally, multi‐model inference identify importance ranking potential moderators. Results type, taxon category best moderators direction magnitude These provide insights into possible important implications aquaculture, fisheries, conservation, research aquarium, providing evidence‐based guidance future theories practices.

Language: Английский

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Effects of Holding Density on the Welfare of Zebrafish: A Systematic Review

Zebrafish, Journal Year: 2021, Volume and Issue: 18(5), P. 297 - 306

Published: Aug. 27, 2021

The zebrafish is becoming an increasingly popular research animal around the world. Its welfare affected by array of environmental factors, such as food access and water quality. Holding density important aspect, not least due to its interaction with other housing conditions. Despite extensive use in research, little known how densities affect welfare. In this systematic review, we have performed a large literature search, compiled, evaluated all publications regarding holding density. We analyzed effects growth, reproduction, stress response, including behavior, quality, pathogenic outbreaks young adult fish. Our review shows that tested vary largely depending on focus, for example, body growth or behavior. fact, indicates future recommendations could depend which aspects are considered. Overall, there need more studies investigating interactive indicators, reproduction coupled response. necessity universal guidelines reporting information conditions larvae adults when publishing work.

Language: Английский

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Physical enrichment for improving welfare in fish aquaculture and fitness of stocking fish: A review of fundamentals, mechanisms and applications

Aquaculture, Journal Year: 2023, Volume and Issue: 574, P. 739651 - 739651

Published: May 15, 2023

Language: Английский

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Auditory environmental enrichment prevents anxiety-like behavior, but not cortisol responses, evoked by 24-h social isolation in zebrafish

Behavioural Brain Research, Journal Year: 2021, Volume and Issue: 404, P. 113169 - 113169

Published: Feb. 9, 2021

Language: Английский

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Different influences of anxiety models, environmental enrichment, standard conditions and intraspecies variation (sex, personality and strain) on stress and quality of life in adult and juvenile zebrafish: A systematic review

Neuroscience & Biobehavioral Reviews, Journal Year: 2021, Volume and Issue: 131, P. 765 - 791

Published: Sept. 27, 2021

Language: Английский

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Collective response of fish to combined manipulations of illumination and flow

Behavioural Processes, Journal Year: 2022, Volume and Issue: 203, P. 104767 - 104767

Published: Oct. 14, 2022

Language: Английский

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Effects of clove oil on behavioral reactivity and motivation in Nile tilapia

Aquaculture, Journal Year: 2020, Volume and Issue: 532, P. 736045 - 736045

Published: Oct. 13, 2020

Language: Английский

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Individual differences in the boldness of female zebrafish are associated with alterations in serotonin function

Journal of Experimental Biology, Journal Year: 2024, Volume and Issue: 227(12)

Published: June 6, 2024

ABSTRACT One of the most prevalent axes behavioral variation in both humans and animals is risk taking, where individuals that are more willing to take characterized as bold while those reserved regarded shy. Brain monoamines (i.e. serotonin, dopamine noradrenaline) have been found play a role variety behaviors related taking. Using zebrafish, we investigated whether there was relationship between monoamine function boldness behavior during exploration novel tank. We correlation serotonin metabolism (5-HIAA:5-HT ratio) initial exposure tank female animals. The DOPAC:DA ratio correlated with on third day male fish. There no noradrenaline. To probe differences serotonergic shy fish, administered selective reuptake inhibitor, escitalopram, assessed exploratory behavior. escitalopram had opposing effects thigmotaxis animals: drug caused fish spend time near center spent periphery. Taken together, our findings indicate has sex-specific contributions individual risk-taking

Language: Английский

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