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Dietary supplementation of teprenone potentiates thermal and hypoxia tolerance as well as cellular stress protection of Epinephelus coioides juveniles reared under multiple stressors
Dong, H.; Zheng, X.; Kumar, V.; Roy, S.; Duan, Y.; Gao, H.; Zhang, J. (2020). Dietary supplementation of teprenone potentiates thermal and hypoxia tolerance as well as cellular stress protection of Epinephelus coioides juveniles reared under multiple stressors. Aquaculture 514: 734413. https://hdl.handle.net/10.1016/j.aquaculture.2019.734413
In: Aquaculture. Elsevier: Amsterdam; London; New York; Oxford; Tokyo. ISSN 0044-8486; e-ISSN 1873-5622, meer
Peer reviewed article  
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Trefwoord
    Epinephelus coioides (Hamilton, 1822) [WoRMS]
Author keywords
    Antioxidant status; Epinephelus coioides; Teprenone; Thermal stress; Hypoxia
Auteurs  Top 
  • Duan, Y.
  • Gao, H.
  • Zhang, J.
Abstract
    The present study was carried out to delineate the effect of teprenone on thermal and hypoxia tolerance and antioxidative status of Epinephelus coioides juveniles reared under multiple stressors. Four groups of fish averaging 10.0 ± 2 g, body length of 7.5 ± 0.5 cm were randomly distributed in 16 fiberglass tanks in triplicates. A basal diet without teprenone was used as a control (C), and the other three diets were prepared by adding 100 mg teprenone (T1), 200 mg teprenone (T2) and 400 mg teprenone (T3) per kg of diet. After 15 days of feeding, teprenone was shown to be a potent inducer of antioxidant activity. The induction of antioxidant status was associated with the generation of resistance in E. coioides against subsequent thermal or hypoxia stress at 100 and 200 mg/kg teprenone incorporation in the diet. Our results also provide new insight into the mode of antioxidant action of teprenone, in which initial generation of antioxidant enzyme activity by the compound plays a key role. Overall results add new information about the bioactivity of teprenone and advanced our knowledge of this compound as a potential prophylactic agent to maintain homeostasis in fish against thermal stress and hypoxia.
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