Reducing the effect of pre-slaughter fasting on the stress response of rainbow trout (Oncorhynchus mykiss)
Fasting is commonly used in aquaculture to empty the gut before slaughter, but little is known about how feeding frequency before fasting affects the stress response of trout. To find out more, 240 rainbow trout (Oncorhynchus mykiss) were separated into three groups with different feeding schedules during the final month of fattening, from 26 September to 28 October 2013 (daily, every two days or every four days) and two durations of pre-slaughter fasting (two days of fasting; 24.3 degree days, to nine days of fasting; 102 degree days). After slaughter, a number of stress-related parameters were measured, such as liver glycogen, skin/gill colour and haematological parameters (cortisol, glucose, lactate, triglycerides, lactate dehydrogenase and creatine phosphokinase). Trout given food every two days on the farm had lower levels of cortisol and higher levels of triglycerides and liver glycogen than the other treatments after two days of fasting; indicating that habituating trout to feed once every two days in the final month of fattening lowered their stress response to two days of fasting before slaughter. © 2016 Universities Federation for Animal Welfare.
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Format: | artículo biblioteca |
Language: | English |
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Universities Federation for Animal Welfare
2016
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Subjects: | Animal welfare, Cortisol, Fasting, Glycogen, Rainbow trout, stress response, |
Online Access: | http://hdl.handle.net/20.500.12792/3618 http://hdl.handle.net/10261/291360 |
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dig-inia-es-10261-2913602023-02-20T07:17:21Z Reducing the effect of pre-slaughter fasting on the stress response of rainbow trout (Oncorhynchus mykiss) Bermejo-Poza, R. De La Fuente, J. Pérez, C. Lauzurica, S. González De Chávarri, E. Diaz, M. T. Villarroel, M. Animal welfare Cortisol Fasting Glycogen Rainbow trout stress response Fasting is commonly used in aquaculture to empty the gut before slaughter, but little is known about how feeding frequency before fasting affects the stress response of trout. To find out more, 240 rainbow trout (Oncorhynchus mykiss) were separated into three groups with different feeding schedules during the final month of fattening, from 26 September to 28 October 2013 (daily, every two days or every four days) and two durations of pre-slaughter fasting (two days of fasting; 24.3 degree days, to nine days of fasting; 102 degree days). After slaughter, a number of stress-related parameters were measured, such as liver glycogen, skin/gill colour and haematological parameters (cortisol, glucose, lactate, triglycerides, lactate dehydrogenase and creatine phosphokinase). Trout given food every two days on the farm had lower levels of cortisol and higher levels of triglycerides and liver glycogen than the other treatments after two days of fasting; indicating that habituating trout to feed once every two days in the final month of fattening lowered their stress response to two days of fasting before slaughter. © 2016 Universities Federation for Animal Welfare. 2023-02-20T07:17:21Z 2023-02-20T07:17:21Z 2016 artículo Animal Welfare Journal 25(3): 339-346 (2016) 0962-7286 http://hdl.handle.net/20.500.12792/3618 http://hdl.handle.net/10261/291360 10.7120/09627286.25.3.339 en none Universities Federation for Animal Welfare |
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Animal welfare Cortisol Fasting Glycogen Rainbow trout stress response Animal welfare Cortisol Fasting Glycogen Rainbow trout stress response |
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Animal welfare Cortisol Fasting Glycogen Rainbow trout stress response Animal welfare Cortisol Fasting Glycogen Rainbow trout stress response Bermejo-Poza, R. De La Fuente, J. Pérez, C. Lauzurica, S. González De Chávarri, E. Diaz, M. T. Villarroel, M. Reducing the effect of pre-slaughter fasting on the stress response of rainbow trout (Oncorhynchus mykiss) |
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Fasting is commonly used in aquaculture to empty the gut before slaughter, but little is known about how feeding frequency before fasting affects the stress response of trout. To find out more, 240 rainbow trout (Oncorhynchus mykiss) were separated into three groups with different feeding schedules during the final month of fattening, from 26 September to 28 October 2013 (daily, every two days or every four days) and two durations of pre-slaughter fasting (two days of fasting; 24.3 degree days, to nine days of fasting; 102 degree days). After slaughter, a number of stress-related parameters were measured, such as liver glycogen, skin/gill colour and haematological parameters (cortisol, glucose, lactate, triglycerides, lactate dehydrogenase and creatine phosphokinase). Trout given food every two days on the farm had lower levels of cortisol and higher levels of triglycerides and liver glycogen than the other treatments after two days of fasting; indicating that habituating trout to feed once every two days in the final month of fattening lowered their stress response to two days of fasting before slaughter. © 2016 Universities Federation for Animal Welfare. |
format |
artículo |
topic_facet |
Animal welfare Cortisol Fasting Glycogen Rainbow trout stress response |
author |
Bermejo-Poza, R. De La Fuente, J. Pérez, C. Lauzurica, S. González De Chávarri, E. Diaz, M. T. Villarroel, M. |
author_facet |
Bermejo-Poza, R. De La Fuente, J. Pérez, C. Lauzurica, S. González De Chávarri, E. Diaz, M. T. Villarroel, M. |
author_sort |
Bermejo-Poza, R. |
title |
Reducing the effect of pre-slaughter fasting on the stress response of rainbow trout (Oncorhynchus mykiss) |
title_short |
Reducing the effect of pre-slaughter fasting on the stress response of rainbow trout (Oncorhynchus mykiss) |
title_full |
Reducing the effect of pre-slaughter fasting on the stress response of rainbow trout (Oncorhynchus mykiss) |
title_fullStr |
Reducing the effect of pre-slaughter fasting on the stress response of rainbow trout (Oncorhynchus mykiss) |
title_full_unstemmed |
Reducing the effect of pre-slaughter fasting on the stress response of rainbow trout (Oncorhynchus mykiss) |
title_sort |
reducing the effect of pre-slaughter fasting on the stress response of rainbow trout (oncorhynchus mykiss) |
publisher |
Universities Federation for Animal Welfare |
publishDate |
2016 |
url |
http://hdl.handle.net/20.500.12792/3618 http://hdl.handle.net/10261/291360 |
work_keys_str_mv |
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