The role of energy reserves in common carp performance inferred from phenotypic and genetic parameters

Zhao, Jinfeng; Prchal, Martin; Kause, Antti; Vandeputte, Marc; Gela, David; Kroupová, Hana Kocour; Piačková, Veronika; Šauer, Pavel; Steinbach, Christoph; Allamellou, Jean-Michel; Palaiokostas, Christos; Houston, Ross D.; Kocour, Martin

doi:10.1016/j.aquaculture.2021.736799

Cited by 6 publications

(2 citation statements)

References 70 publications

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“…In addition, the hepatic fat reserves of O. macrolepis were significantly decreased during overwintering, suggesting that the liver provides a substrate for energy production through fat decomposition. It has been reported that overwintering could reduce the fat contents in liver and muscle of common carp ( Cyprinus carpio ) (Zhao et al, 2021). This study showed that muscular fat deposition was significantly reduced after 150 days of fasting, demonstrating that long‐term fasting could induce fat mobilization in muscle.…”

Section: Discussionmentioning

confidence: 99%

“…Aquatic ectotherms overwintering in numerous regions face not only extreme low temperatures, but also inadequate food availability. To meet that challenge, fish and other ectotherms typically utilize an integrated system of physiological metabolism and biochemical reactions to maintain their tissue structure and function, thereby improving survival (Yu et al, 2023; Zhao et al, 2021). The decline of winter temperature may lead to the decrease of aquatic product output in many countries and regions, resulting in serious economic losses.…”

Section: Introductionmentioning

confidence: 99%

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Effects of overwintering on proximate composition, fatty acid composition, serum parameters, antioxidant status, and lipid metabolism in Onychostoma macrolepis

Gou

Wang

Jin

et al. 2023

J World Aquaculture Soc

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To investigate the metabolic adaptation and lipid utilization to overwintering in Onychostoma macrolepis (27.05 ± 1.79 g), fish were sampled at 0, 75, and 150 days, respectively. Fish were randomly reared into three outdoor tanks (water temperature range:0–10°C). After overwintering, body weight, viscera index, hepatopancreas index, and intraperitoneal fat index were significantly lower than before (p < 0.05). In liver, the contents of monounsaturated fatty acid and polyunsaturated fatty acid (PUFA) were observed to be the lowest and the highest after 150 days of overwintering, respectively (p < 0.05). In serum, the concentrations of triglyceride (TG) and total cholesterol significantly decreased while the activities of alanine aminotransferase and aspartate aminotransferase significantly increased at Day 75 (p < 0.05). Hepatic antioxidant activities were significantly lower whereas malondialdehyde content was significantly higher at Day 150 (p < 0.05). Serum antioxidant indexes were similar to those in liver. During overwintering, the decrease of TG contents in tissues was influenced by the upregulation of lipidolysis genes. These results indicate that lipids were continuously mobilized as physiological fuels throughout overwintering. Overwintering could result in poor antioxidant status and higher lipid peroxidation level in O. macrolepis.

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Section: Discussionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%