Metabolic and molecular stress responses of European seabass, Dicentrarchus labrax at low and high temperature extremes

Islam, Jakiul; Kunzmann, Andreas; Bögner, Mirko; Meyer, A. B.; Thiele, Rajko; Slater, Matthew James

doi:10.1016/j.ecolind.2020.106118

Cited by 50 publications

(51 citation statements)

References 106 publications

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“…Nevertheless, we assert that feeding a high-fat diet to fish acclimatized to warmer waters is a good practice for improving growth. This agrees with previous results in this species [ 36 , 42 ] as well as in other species [ 39 , 43 ]. The decrease in FCR at the high temperature in Group A compared to Group B (during the first period) can be explained by the increase in feed intake which the fish needed to reach their growth inherent potential as the temperature was close to the optimum for this species.…”

Section: Discussionsupporting

confidence: 94%

“…The HSI in the former treatment (Group A, D16) was higher despite the lower SGR, but without difference in liver fat deposition. According to Islam et al (2020), an HSI increase could result from liver hyperplasia and hypertrophy [ 39 ] or in fish that. Although D16 was observed to be associated with higher HSI, liver composition analysis did not show increased liver fat deposition for this group.…”

Section: Discussionmentioning

confidence: 99%

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Understanding the Interaction Effects between Dietary Lipid Content and Rearing Temperature on Growth Performance, Feed Utilization, and Fat Deposition of Sea Bass (Dicentrarchus labrax)

Katsika

Flores

Kotzamanis

et al. 2021

Animals

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This study was conducted to elucidate the interaction effects of temperature and dietary lipid levels (2 × 2 factorial experiment) on the growth performance, muscle, and liver composition in adult farmed European sea bass (Dicentrarchus labrax). Two groups of fish (190 g; 60 fish per group) were distributed in 12 tanks in triplicates and kept at two different temperature regimes; one starting at 23 °C and then changed to 17 °C for 61 days, and the other starting at 17 °C and then changed to 23 °C for 39 days. Two commercial diets containing both ~44% crude protein but incorporating different dietary lipid levels, 16.5% (D16) and 20.0% (D20) (dry matter (DM)), were fed to the fish to apparent satiation; the type of diet fed to each fish group remained constant throughout the experiment. Final body weight, weight gain, and specific growth rate were significantly higher for the fish group held at 23 °C compared to the fish group at 17 °C (before the temperature changes), while the dietary fat content did not have any profound effect in both groups. Furthermore, the different temperature regimes did not affect muscle or liver composition, but, on the contrary, dietary lipids affected hepatosomatic, perivisceral fat, and visceral indexes. Feed conversion ratio and specific growth rate were not affected by the dietary lipid level. An interaction of temperature and dietary lipid content was observed in daily feed consumption (DFC) and final body weight (FBW).

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Section: Discussionsupporting

confidence: 94%

Section: Discussionmentioning

confidence: 99%

Understanding the Interaction Effects between Dietary Lipid Content and Rearing Temperature on Growth Performance, Feed Utilization, and Fat Deposition of Sea Bass (Dicentrarchus labrax)

Katsika

Flores

Kotzamanis

et al. 2021

Animals

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“…By raising temperature, our results showed an increased serum level of TBARS in fish fed on CD, especially switching from 21 to 25 °C when the activity of antioxidant enzymes (SOD and CAT) dropped. Results are in line with previous studies describing the oxidative stress in sea bass due to stressful temperatures [ 38 ]. This was likely due to the inability of the antioxidant enzyme machinery to compensate for ROS-generating stressful conditions [ 39 , 40 ].…”

Section: Discussionsupporting

confidence: 92%

“…Trend of blood glucose in control group at temperatures between 21 and 25 °C could be a consequence of depletion of hepatic glycogen stores and the subsequent activation of gluconeogenesis. The stimulation of glycogenolysis and gluconeogenesis in sea bass subjected to thermal stress has been previously reported in several studies [ 9 , 38 , 52 ]. Islam et al [ 38 ] detected low amount of blood glucose in fish reared both at low and high temperature extremes (8 and 32 °C).…”

Section: Discussionmentioning

confidence: 79%

“…The stimulation of glycogenolysis and gluconeogenesis in sea bass subjected to thermal stress has been previously reported in several studies [ 9 , 38 , 52 ]. Islam et al [ 38 ] detected low amount of blood glucose in fish reared both at low and high temperature extremes (8 and 32 °C). Samaras et al [ 9 ] found lower levels of circulating glucose in sea bass exposed to a temperature of 15 °C with respect to 25 °C.…”

Section: Discussionmentioning

confidence: 79%

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A Multi-Biomarker Approach in European Sea Bass Exposed to Dynamic Temperature Changes under Dietary Supplementation with Origanum vulgare Essential Oil

Dinardo

Maggiolino

Casalino

et al. 2021

Animals

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A feeding trial for 150 days was carried out to evaluate the cross-effects between oregano essential oil (EO) dietary supplementation and dynamic temperature change in sea bass. Under exposure to rising temperature (13–25 °C), fish were fed with a control diet (CD) and two experimental diets supplemented with 100 (D100) and 200 ppm (D200) of EO. Feed inclusion of EO promoted the activity of antioxidant enzymes in sea bass exposed to increasing temperature. Consistently with the temperature rise, TBARS concentrations increased in CD and D200 groups, whereas were almost stable in D100. Trend of blood glucose in fish fed on CD was likely affected by glycogenolysis and gluconeogenesis. Similarly, the depletion of triglycerides and cholesterol in fish fed on CD likely supported the energy cost of gluconeogenesis. On the other hand, the reduction of glucose, triglycerides, and cholesterol in D100 and D200 was mainly attributable to the hypoglycemic and hypolipidemic effects of EO. The higher levels of serum protein observed in D100 and D200 groups were also associated to a reduced thermal stress compared to CD. EO dietary supplementation may be a promising strategy to alleviate the negative effects of temperature shift on sea bass physiological and oxidative state.

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Aquaculture Fish Responses Towards Temperature Stress: A Critical Review

Naz

Iqbal

Khan

et al. 2023

Toxicology and Human Health

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Metabolic and molecular stress responses of European seabass, Dicentrarchus labrax at low and high temperature extremes

Cited by 50 publications

References 106 publications

Understanding the Interaction Effects between Dietary Lipid Content and Rearing Temperature on Growth Performance, Feed Utilization, and Fat Deposition of Sea Bass (Dicentrarchus labrax)

Understanding the Interaction Effects between Dietary Lipid Content and Rearing Temperature on Growth Performance, Feed Utilization, and Fat Deposition of Sea Bass (Dicentrarchus labrax)

A Multi-Biomarker Approach in European Sea Bass Exposed to Dynamic Temperature Changes under Dietary Supplementation with Origanum vulgare Essential Oil

Aquaculture Fish Responses Towards Temperature Stress: A Critical Review

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