Electrophysiological and behavioural responses of turbot (Scophthalmus maximus) cooled in ices water

E. Lambooij; M.B.M. Bracke; H.G.M. Reimert; A. Foss; A. Imsland; J.W. van de Vis

doi:10.1016/j.physbeh.2015.05.019

Electrophysiological and behavioural responses of turbot (Scophthalmus maximus) cooled in ices water

E. Lambooij^*, M.B.M. Bracke, H.G.M. Reimert, A. Foss, A. Imsland, J.W. van de Vis

^*Corresponding author for this work

Research output: Contribution to journal › Article › Academic › peer-review

13 Citations (Scopus)

Abstract

Behavioural, neural and physiological aspects related to pre-slaughter cooling of turbot habituated to two environmental temperatures (18.7 and 12.0 °C) were investigated. Six fish in both treatments were immersed in ice water for 75 min. For control, four fish were immersed in water under their habituated environmental temperature. Turbot did not show a quick reduction of overall power in the EEG (electroencephalogram) to less than 10%, nor did the turbot show a shift in brain wave predominance from high to low frequency waves. At 15 min after immersion in ice water at least 7 out of 12 fish still showed total power values over 10% of pre-immersion values. Significant reductions in responsiveness to needle scratches and reduced breathing after immersion in ice waterwere observed, but none of these parameters had dropped to 0 even after 75 min in icewater. A significant reduction in gill score was found at 2 and 5 min after immersion in ice water compared to the control fish (p

Original language	English
Pages (from-to)	23-28
Journal	Physiology and Behavior
Volume	149
DOIs	https://doi.org/10.1016/j.physbeh.2015.05.019
Publication status	Published - 2015

Keywords

fish
welfare
pain
stress
system
l.

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10.1016/j.physbeh.2015.05.019

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title = "Electrophysiological and behavioural responses of turbot (Scophthalmus maximus) cooled in ices water",

abstract = "Behavioural, neural and physiological aspects related to pre-slaughter cooling of turbot habituated to two environmental temperatures (18.7 and 12.0 °C) were investigated. Six fish in both treatments were immersed in ice water for 75 min. For control, four fish were immersed in water under their habituated environmental temperature. Turbot did not show a quick reduction of overall power in the EEG (electroencephalogram) to less than 10%, nor did the turbot show a shift in brain wave predominance from high to low frequency waves. At 15 min after immersion in ice water at least 7 out of 12 fish still showed total power values over 10% of pre-immersion values. Significant reductions in responsiveness to needle scratches and reduced breathing after immersion in ice waterwere observed, but none of these parameters had dropped to 0 even after 75 min in icewater. A significant reduction in gill score was found at 2 and 5 min after immersion in ice water compared to the control fish (p",

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author = "E. Lambooij and M.B.M. Bracke and H.G.M. Reimert and A. Foss and A. Imsland and {van de Vis}, J.W.",

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journal = "Physiology and Behavior",

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T1 - Electrophysiological and behavioural responses of turbot (Scophthalmus maximus) cooled in ices water

AU - Lambooij, E.

AU - Bracke, M.B.M.

AU - Reimert, H.G.M.

AU - Foss, A.

AU - Imsland, A.

AU - van de Vis, J.W.

PY - 2015

Y1 - 2015

N2 - Behavioural, neural and physiological aspects related to pre-slaughter cooling of turbot habituated to two environmental temperatures (18.7 and 12.0 °C) were investigated. Six fish in both treatments were immersed in ice water for 75 min. For control, four fish were immersed in water under their habituated environmental temperature. Turbot did not show a quick reduction of overall power in the EEG (electroencephalogram) to less than 10%, nor did the turbot show a shift in brain wave predominance from high to low frequency waves. At 15 min after immersion in ice water at least 7 out of 12 fish still showed total power values over 10% of pre-immersion values. Significant reductions in responsiveness to needle scratches and reduced breathing after immersion in ice waterwere observed, but none of these parameters had dropped to 0 even after 75 min in icewater. A significant reduction in gill score was found at 2 and 5 min after immersion in ice water compared to the control fish (p

AB - Behavioural, neural and physiological aspects related to pre-slaughter cooling of turbot habituated to two environmental temperatures (18.7 and 12.0 °C) were investigated. Six fish in both treatments were immersed in ice water for 75 min. For control, four fish were immersed in water under their habituated environmental temperature. Turbot did not show a quick reduction of overall power in the EEG (electroencephalogram) to less than 10%, nor did the turbot show a shift in brain wave predominance from high to low frequency waves. At 15 min after immersion in ice water at least 7 out of 12 fish still showed total power values over 10% of pre-immersion values. Significant reductions in responsiveness to needle scratches and reduced breathing after immersion in ice waterwere observed, but none of these parameters had dropped to 0 even after 75 min in icewater. A significant reduction in gill score was found at 2 and 5 min after immersion in ice water compared to the control fish (p

KW - fish

KW - welfare

KW - pain

KW - stress

KW - system

KW - l.

U2 - 10.1016/j.physbeh.2015.05.019

DO - 10.1016/j.physbeh.2015.05.019

M3 - Article

SN - 0031-9384

VL - 149

SP - 23

EP - 28

JO - Physiology and Behavior

JF - Physiology and Behavior

ER -

Electrophysiological and behavioural responses of turbot (Scophthalmus maximus) cooled in ices water

Abstract

Keywords

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