Dietary melatonin and L-tryptophan supplementation counteracts the effects of acute stress in Salmo salar

Aquaculture ◽  
2022 ◽  
pp. 737882
Author(s):  
R. Oyarzún-Salazar ◽  
J.L.P. Muñoz ◽  
O. Mardones ◽  
B.S. Labbé ◽  
A. Romero ◽  
...  
Keyword(s):  
Salmo Salar ◽  
Acute Stress

Thermal delousing in anaesthetised small Atlantic salmon (Salmo salar) post-smolts: A case study showing the viability of anaesthesia prior to delousing for improved welfare during treatment for salmon lice

2021 ◽  
Vol 30 (2) ◽  
pp. 117-120
Author(s):  
O Folkedal ◽  
SO Utskot ◽  
J Nilsson
Keyword(s):  
Atlantic Salmon ◽  
Salmo Salar ◽  
Experimental Research ◽  
Acute Stress ◽  
Small Scale ◽  
Lepeophtheirus Salmonis ◽  
Salmon Lice ◽  
Sequence Of Events ◽  
Present Case Study

Delousing treatment for salmon sea lice (Lepeophtheirus salmonis) is considered a significant welfare concern in farming of Atlantic salmon ( Salmo salar), where both industry and legislative bodies prompt for better methods. Currently, the most common method is thermal delousing, where fish are crowded, pumped into a vessel and exposed to ∼28–34°C for ∼30 s. Physical collisions occurring as a result of a loss of behavioural control lead to acute stress. Crowding triggers vigorous escape behaviour as salmon respond not only to treatment but also to being channeled to and from the treatment zone. A sequence of events considered to cause mortality and poor welfare. The present case study was motivated by an urgent need for delousing in groups of small salmon post-smolts in experimental research. For this purpose, a simple, small-scale system for thermal delousing was constructed, including anaesthesia to alleviate behavioural responses. The anaesthetised fish showed little behavioural response to thermal treatment, strong appetite within hours, and negligible mortality. The described method is regarded as a welfare-friendly alternative to industrial delousing in smaller fish groups, for example, in experimental research. We would encourage detailed research aimed towards gaining a deeper under-standing of the welfare effects of anaesthesia prior to treatment for delousing.

scholarly journals Increasing the dietary n-6/n-3 ratio alters the hepatic eicosanoid production after acute stress in Atlantic salmon (Salmo salar)

Aquaculture ◽  
2021 ◽  
Vol 534 ◽  
pp. 736272
Author(s):  
Bjørg Kristine Hundal ◽  
Nina Sylvia Liland ◽  
Grethe Rosenlund ◽  
Erik Höglund ◽  
Pedro Araujo ◽  
...  
Keyword(s):  
Atlantic Salmon ◽  
Salmo Salar ◽  
Acute Stress ◽  
Atlantic Salmon Salmo Salar ◽  
Eicosanoid Production

Effects of acclimation temperature on cortisol and oxygen consumption in Atlantic salmon (Salmo salar) post-smolt exposed to acute stress

Aquaculture ◽  
2018 ◽  
Vol 497 ◽  
pp. 331-335 ◽  
Author(s):  
Angelico Madaro ◽  
Ole Folkedal ◽  
Silvia Maiolo ◽  
Marsela Alvanopoulou ◽  
Rolf Erik Olsen
Keyword(s):  
Oxygen Consumption ◽  
Atlantic Salmon ◽  
Salmo Salar ◽  
Acute Stress ◽  
Acclimation Temperature ◽  
Atlantic Salmon Salmo Salar

Microstructure and texture of fresh and smoked Atlantic salmon, Salmo salar L., fillets from fish reared and slaughtered under different conditions

2001 ◽  
Vol 32 (1) ◽  
pp. 1-10 ◽  
Author(s):  
Sjofn Sigurgisladottir ◽  
Margret S. Sigurdardottir ◽  
Helga Ingvarsdottir ◽  
Ole J. Torrissen ◽  
Hannes Hafsteinsson
Keyword(s):  
Atlantic Salmon ◽  
Salmo Salar ◽  
Atlantic Salmon Salmo Salar

The impact of acute stress on the neural processing of food cues in bulimia nervosa: Replication in two samples.

2017 ◽  
Vol 126 (5) ◽  
pp. 540-551 ◽  
Author(s):  
Brittany Collins ◽  
Lauren Breithaupt ◽  
Jennifer E. McDowell ◽  
L. Stephen Miller ◽  
James Thompson ◽  
...  
Keyword(s):  
Bulimia Nervosa ◽  
Acute Stress ◽  
Neural Processing ◽  
Food Cues ◽  
Two Samples ◽  
The Impact
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