An Effective Method of Prompting Juvenile Rainbow Trout (Oncorhynchus mykiss) to Cope with Heat Stress

Jiang, Xuyang; Dong, Shuanglin; Zhou, Ye; Gao, Qinfeng; Pan, Zhe

doi:10.1007/s11802-020-4124-y

Cited by 5 publications

(13 citation statements)

References 57 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…The supra-optimal temperature acclimation was more effective in survival than supplements. This nding is in accordance with a range of studies in other species including rainbow trout (Underwood et al, 2012;Jiang et al 2020), Atlantic salmon ( Gamperl et al, 2020), stripped bass (Davis and Parker, 1990), European seabass (Islam et al, 2020a), and aquatic invertebrates (Delorme et al, 2020). For instance, higher rates of survival were observed in European seabass reared at 16°C and 24°C compared to 8°C and 32°C and temperature ranges between 16°C and 24°C provided optimum conditions for high survival and good growth performance (Islam et al, 2020a).…”

Section: Discussionsupporting

confidence: 89%

“…Sub-optimum water quality and uctuations in physicochemical parameters of water used in aquaculture frequently leads to compromised immune systems and increased mortality in cultured species (Akhtar et al, 2014;Kelly et al, 2018;Manzon et al, 2022). Increasing and greater, uctuation in water temperatures associated with climate change are already adversely impacting the production of cold-water aquaculture species, especially salmonids, with major mortality events due to thermal stress reported in many regions of the world with salmonid aquaculture (Vikeså et al, 2017;Soto et al, 2019;Jiang et al, 2020). It has been reported that acclimation of salmonids to higher temperatures can considerably ameliorate some of the negative effects through a variety of adaptive metabolic responses (Kullgren et al, 2013;Kelly et al, 2018;Gamperl et al, 2020).…”

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Acclimation to higher temperature and feeding on antioxidants supplemented diets improved Rainbow trout (Oncorhynchus mykiss) resilience to heatwaves

Vazirzadeh,

Hosseinpour,

Farhadi

et al. 2023

Preprint

View full text Add to dashboard Cite

Coldwater species challenge with increasing water temperatures and fluctuations over the upper thermal limits of fish. This study was conducted to evaluate the potential of acclimation to higher temperature and dietary antioxidants capacity on ameliorating the adverse effects of heat shocks in in rainbow trout. To this end, rainbow trout fingerlings were acclimated at optimal (14°C) and high (20°C) temperatures and fed on selenium (5 mg/kg) and polyphenol (2 g/kg) supplemented diets for 60 days and then were exposed to heat shocks by increasing water temperature up to 30°C. Growth performance, survival rate, haemato-immunological parameters and expression of HSP70α, HSP70β, HSP90β and IL-1β genes were measured to evaluate the hypothesises. The rainbow trout acclimated to 20°C and fed on antioxidants supplemented diets showed significantly higher aftershock survival rate. Moreover, fish acclimated to higher temperature showed higher red blood cell counts as well as serum total protein and albumin during acclimation trial and heat shocks phase. Acclimation to higher temperature and feeding on antioxidants remarkably enhanced fish immune and antioxidant capacity in comparison to fish adapted to cold water and fed on the basal diet measured by improved respiratory burst and lysozyme activities and upregulation of IL-1β expression during exposure of fish to heat shocks. Furthermore, fish acclimated to higher temperature, especially those fed on antioxidant supplemented diets showed lower expression level of HSPs genes during heat shock phase, indicating that high heat shocks were less stressful for this fish in comparison to cold water acclimated fish. This claim was also supported by lower cortisol level during heat shocks in fish acclimated to higher temperature. In conclusion, the results of this study indicated that acclimation to higher temperature and/or fed on diets supplemented by selenium and polyphenol, can help to ameliorate the negative effects of the heat shock in rainbow trout.

show abstract

Section: Discussionsupporting

confidence: 89%

Section: Introductionmentioning

confidence: 99%

Acclimation to higher temperature and feeding on antioxidants supplemented diets improved Rainbow trout (Oncorhynchus mykiss) resilience to heatwaves

Vazirzadeh,

Hosseinpour,

Farhadi

et al. 2023

Preprint

View full text Add to dashboard Cite

show abstract

“…The present study showed that the rainbow trout can be reared in cages in shallow reservoirs especially during winter-spring season when temperature (10-20C), DO (8-9 mg/L), pH (6)(7)(8)(9), turbidity, alkalinity etc. are within the range.…”

Section: Discussionmentioning

confidence: 71%

“…Optimum water temperature is 13-20 °C for best feed intake and growth [2,4] . For few hours, trout are not seriously harmed at temperatures up to 23 °C but should not remain for longer [5,6] . High survival depends on water temperatures remaining at 20 °C or lower [7] and 25 °C is the lethal [8] .…”

Section: Introductionmentioning

confidence: 99%

Condition factor, growth performance, and production of Rainbow trout (Oncorhynchus mykiss) in floating cages in a shallow reservoir in Panauti, Nepal: A preliminary study

Nepal¹,

Sharma²,

Bhujel³

et al. 2021

Int. J. Fish. Aquat. Stud.

View full text Add to dashboard Cite

Rainbow trout (Oncorhynchus mykiss) is getting priority in aquaculture in Nepal. However, high investments, slow growth in land-based/raceway systems are major challenges. Country would be benefited, if lakes/reservoirs could be utilized for its cage culture. A preliminary trial was conducted in a shallow-reservoir created for hydropower installing three cages, 6 m × 4 m × 2 m size to evaluate its growth and production potential. The trout juveniles of 57.6±15.4 g (average weightSD) were stocked and fed with 33% crude protein diet twice daily at maximum 3% of body weight for 91-days. A random sample of 50 fish per cage was measured total length and body weight each month. Results showed that it is possible to achieve high survival (96.61.7%) with reasonable growth rate (0.80 g.fish -1 ) and productivity (8927 kg.cage -1 ) with fair condition factor (1.20.1) when stocked 10-20 fish.m -3 . These parameters implied that farming of rainbow trout in the shallow reservoir could be successfully done during winter-spring season in a year. However, further research is needed with stocking densities, feeds and feeding rates/methods, and also conducting longer period which may further enhance the productivity thereby profitability.

show abstract

“…Sub-optimum water quality and fluctuations in physicochemical parameters of water used in aquaculture frequently lead to compromised immune systems and increased mortality in cultured species 2 , 4 . Increasing and greater fluctuations in water temperatures associated with climate change are already adversely impacting the production of cold-water aquaculture species, especially salmonids, with major mortality events due to thermal stress reported in many regions of the world with salmonid aquaculture 5 – 7 . It has been reported that acclimation of salmonids to higher temperatures can considerably ameliorate some of the negative effects through a variety of adaptive metabolic responses 2 , 8 , 9 .…”

Section: Introductionmentioning

confidence: 99%

Acclimation to higher temperature and antioxidant supplemented diets improved rainbow trout (Oncorhynchus mykiss) resilience to heatwaves

Hosseinpour,

Vazirzadeh,

Farhadi

et al. 2024

Sci Rep

View full text Add to dashboard Cite

Coldwater species are challenged with increasing water temperatures and fluctuations over their upper thermal limits. This study evaluated the potential of acclimation to higher temperature and dietary antioxidants capacity to mitigate the adverse effects of heat shocks in rainbow trout. To this end, rainbow trout fingerlings were acclimated at optimal (14 °C) and high (20 °C) temperatures and fed on selenium (5 mg/kg) and polyphenol (2 g/kg) supplemented diets for 60 days and then were exposed to heat shocks by increasing water temperature up to 30 °C. Growth performance, survival rate, haemato-immunological parameters, and expression of HSP70α, HSP70β, HSP90β, and IL-1β genes were measured to evaluate the hypothesises. The rainbow trout acclimated to 20 °C and fed on antioxidants supplemented diets showed a significantly higher aftershock survival rate. Moreover, fish acclimated to higher temperature showed higher red blood cell counts as well as serum total protein and albumin during the acclimation trial and heat shocks phase. Acclimation to higher temperature and feeding on antioxidants remarkably enhanced fish immune and antioxidant capacity in comparison to fish adapted to cold water and fed on the basal diet measured by improved respiratory burst and lysozyme activities and upregulation of IL-1β expression during exposure of fish to heat shocks. Furthermore, fish acclimated to higher temperature, especially those fed on antioxidant supplemented diets, showed lower expression levels of HSPs genes during the heat shock phase, indicating that high heat shocks were less stressful for these fish in comparison to cold water acclimated fish. This finding was also supported by lower cortisol levels during heat shocks in fish acclimated to higher temperature. In conclusion, the results of this study indicated that acclimation to higher temperature and/or fed on diets supplemented by selenium and polyphenol, can help to mitigate the adverse effects of the heat shock in rainbow trout.

show abstract

An Effective Method of Prompting Juvenile Rainbow Trout (Oncorhynchus mykiss) to Cope with Heat Stress

Cited by 5 publications

References 57 publications

Acclimation to higher temperature and feeding on antioxidants supplemented diets improved Rainbow trout (Oncorhynchus mykiss) resilience to heatwaves

Acclimation to higher temperature and feeding on antioxidants supplemented diets improved Rainbow trout (Oncorhynchus mykiss) resilience to heatwaves

Condition factor, growth performance, and production of Rainbow trout (Oncorhynchus mykiss) in floating cages in a shallow reservoir in Panauti, Nepal: A preliminary study

Acclimation to higher temperature and antioxidant supplemented diets improved rainbow trout (Oncorhynchus mykiss) resilience to heatwaves

Contact Info

Product

Resources

About