Electrical and percussive stunning of the common carp (Cyprinus carpio L.): Neurological and behavioural assessment
The overall objective of the study was to evaluate electrical and percussive stunning methods under laboratory conditions in common carps. The electrical current needed to induce a general epileptiform insult was assessed in 13 carps. The insult was obtained by delivering a current of 0.24 ± 0.03 A...
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2007
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Online Access: | https://research.wur.nl/en/publications/electrical-and-percussive-stunning-of-the-common-carp-cyprinus-ca https://doi.org/10.1016/j.aquaeng.2007.04.004 |
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ftunivwagenin:oai:library.wur.nl:wurpubs/356698 2024-02-04T09:53:01+01:00 Electrical and percussive stunning of the common carp (Cyprinus carpio L.): Neurological and behavioural assessment Lambooij, E. Pilarczyk, M. Bialowas, H. van den Boogaart, J.G.M. van de Vis, J.W. 2007 application/pdf https://research.wur.nl/en/publications/electrical-and-percussive-stunning-of-the-common-carp-cyprinus-ca https://doi.org/10.1016/j.aquaeng.2007.04.004 en eng https://edepot.wur.nl/36155 https://research.wur.nl/en/publications/electrical-and-percussive-stunning-of-the-common-carp-cyprinus-ca doi:10.1016/j.aquaeng.2007.04.004 info:eu-repo/semantics/restrictedAccess Wageningen University & Research Aquacultural Engineering 37 (2007) 2 ISSN: 0144-8609 anguilla-anguilla l awareness calves catfish clarias-gariepinus fish pain slaughter welfare aspects info:eu-repo/semantics/article Article/Letter to editor info:eu-repo/semantics/publishedVersion 2007 ftunivwagenin https://doi.org/10.1016/j.aquaeng.2007.04.004 2024-01-10T23:24:47Z The overall objective of the study was to evaluate electrical and percussive stunning methods under laboratory conditions in common carps. The electrical current needed to induce a general epileptiform insult was assessed in 13 carps. The insult was obtained by delivering a current of 0.24 ± 0.03 A (163 ± 1 V; 50 Hz, a.c.) to the head, via scissor-model stunning tongs for approximately 1 s. The duration of the tonic, the clonic and the exhaustion phases were 11 ± 4 s, 5 ± 3 s and 20 ± 14 s on the EEG, respectively. An actual clonic phase was observed in two fish. The total duration of the insult was 31 ± 14 s. The heart rate was 22 ± 12 beats/min prior to stunning while after stunning, the ECG revealed fibrillation for 18 ± 7 s and was irregular. The behaviour of 10 individual carp, which were allowed to move freely in water, was recorded following head-only stunning (164 V, 0.23 ± 0.6 A). The duration of the tonic phase was approximately 10 s and the fish started fin movements after 48 ± 8 s and resumed swimming after 121 ± 83 s. A general epileptiform insult could be induced in carps (n = 25) by passing an electrical current through fresh water using 0.14 ± 0.03 A/dm2 (113 ± 17 V; electrode distance 16 cm) for 1 s at a water conductivity of 200 ¿S/cm. Twenty three carps were rendered unconscious and insensible during electrical stunning in fresh water, using 0.73 ± 0.05 A/dm2 (411 ± 2 V; electrode distance 16 cm) for 5 s at a water conductivity of 330 ¿S/cm, followed by chilling in ice water. As a second stunning procedure, carps were stunned mechanically using a percussion pistol at a maximal velocity of 10.99 ± 0.88 J. Evidence of unconsciousness and insensibility of the carps was provided by the appearance of theta, delta waves and spikes on the EEG, which were proceeded by no brain activity. However, two carp responded after 0.5 min to administered pain stimuli and one carp after 3 min. It may be concluded from this study that common carp are effectively stunned in fresh water. The application of an ... Article in Journal/Newspaper Anguilla anguilla Wageningen UR (University & Research Centre): Digital Library Slaughter ENVELOPE(-85.633,-85.633,-78.617,-78.617) Aquacultural Engineering 37 2 171 179 |
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Open Polar |
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Wageningen UR (University & Research Centre): Digital Library |
op_collection_id |
ftunivwagenin |
language |
English |
topic |
anguilla-anguilla l awareness calves catfish clarias-gariepinus fish pain slaughter welfare aspects |
spellingShingle |
anguilla-anguilla l awareness calves catfish clarias-gariepinus fish pain slaughter welfare aspects Lambooij, E. Pilarczyk, M. Bialowas, H. van den Boogaart, J.G.M. van de Vis, J.W. Electrical and percussive stunning of the common carp (Cyprinus carpio L.): Neurological and behavioural assessment |
topic_facet |
anguilla-anguilla l awareness calves catfish clarias-gariepinus fish pain slaughter welfare aspects |
description |
The overall objective of the study was to evaluate electrical and percussive stunning methods under laboratory conditions in common carps. The electrical current needed to induce a general epileptiform insult was assessed in 13 carps. The insult was obtained by delivering a current of 0.24 ± 0.03 A (163 ± 1 V; 50 Hz, a.c.) to the head, via scissor-model stunning tongs for approximately 1 s. The duration of the tonic, the clonic and the exhaustion phases were 11 ± 4 s, 5 ± 3 s and 20 ± 14 s on the EEG, respectively. An actual clonic phase was observed in two fish. The total duration of the insult was 31 ± 14 s. The heart rate was 22 ± 12 beats/min prior to stunning while after stunning, the ECG revealed fibrillation for 18 ± 7 s and was irregular. The behaviour of 10 individual carp, which were allowed to move freely in water, was recorded following head-only stunning (164 V, 0.23 ± 0.6 A). The duration of the tonic phase was approximately 10 s and the fish started fin movements after 48 ± 8 s and resumed swimming after 121 ± 83 s. A general epileptiform insult could be induced in carps (n = 25) by passing an electrical current through fresh water using 0.14 ± 0.03 A/dm2 (113 ± 17 V; electrode distance 16 cm) for 1 s at a water conductivity of 200 ¿S/cm. Twenty three carps were rendered unconscious and insensible during electrical stunning in fresh water, using 0.73 ± 0.05 A/dm2 (411 ± 2 V; electrode distance 16 cm) for 5 s at a water conductivity of 330 ¿S/cm, followed by chilling in ice water. As a second stunning procedure, carps were stunned mechanically using a percussion pistol at a maximal velocity of 10.99 ± 0.88 J. Evidence of unconsciousness and insensibility of the carps was provided by the appearance of theta, delta waves and spikes on the EEG, which were proceeded by no brain activity. However, two carp responded after 0.5 min to administered pain stimuli and one carp after 3 min. It may be concluded from this study that common carp are effectively stunned in fresh water. The application of an ... |
format |
Article in Journal/Newspaper |
author |
Lambooij, E. Pilarczyk, M. Bialowas, H. van den Boogaart, J.G.M. van de Vis, J.W. |
author_facet |
Lambooij, E. Pilarczyk, M. Bialowas, H. van den Boogaart, J.G.M. van de Vis, J.W. |
author_sort |
Lambooij, E. |
title |
Electrical and percussive stunning of the common carp (Cyprinus carpio L.): Neurological and behavioural assessment |
title_short |
Electrical and percussive stunning of the common carp (Cyprinus carpio L.): Neurological and behavioural assessment |
title_full |
Electrical and percussive stunning of the common carp (Cyprinus carpio L.): Neurological and behavioural assessment |
title_fullStr |
Electrical and percussive stunning of the common carp (Cyprinus carpio L.): Neurological and behavioural assessment |
title_full_unstemmed |
Electrical and percussive stunning of the common carp (Cyprinus carpio L.): Neurological and behavioural assessment |
title_sort |
electrical and percussive stunning of the common carp (cyprinus carpio l.): neurological and behavioural assessment |
publishDate |
2007 |
url |
https://research.wur.nl/en/publications/electrical-and-percussive-stunning-of-the-common-carp-cyprinus-ca https://doi.org/10.1016/j.aquaeng.2007.04.004 |
long_lat |
ENVELOPE(-85.633,-85.633,-78.617,-78.617) |
geographic |
Slaughter |
geographic_facet |
Slaughter |
genre |
Anguilla anguilla |
genre_facet |
Anguilla anguilla |
op_source |
Aquacultural Engineering 37 (2007) 2 ISSN: 0144-8609 |
op_relation |
https://edepot.wur.nl/36155 https://research.wur.nl/en/publications/electrical-and-percussive-stunning-of-the-common-carp-cyprinus-ca doi:10.1016/j.aquaeng.2007.04.004 |
op_rights |
info:eu-repo/semantics/restrictedAccess Wageningen University & Research |
op_doi |
https://doi.org/10.1016/j.aquaeng.2007.04.004 |
container_title |
Aquacultural Engineering |
container_volume |
37 |
container_issue |
2 |
container_start_page |
171 |
op_container_end_page |
179 |
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1789963591640678400 |