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Information Journal Paper

Title

Immunostimulatory and growth-promoting potential of poly-β-hydroxybutyrate in rainbow trout (Oncorhynchus mykiss) fingerlings culture

Pages

  847-865

Abstract

 In the current study, the effect of dietary supplementation of Poly-β-hydroxybutyrate (PHB) on growth performance, digestive enzymes activity, body composition, nonspecific Immune response and diseases resistance of Rainbow trout fingerlings were investigated. Five hundred and fifty-two healthy fingerlings (8. 2± 1. 0 g) were randomly distributed in 12 tanks (150 L) at a density of 46 fish/ tank and fed different levels of dietary PHB (0, 0. 5, 1 and 2%) for 70 days. At the end of the experiment, the results showed that PHB affected growth performance and the fish fed 0. 5 and 1% PHB diets had a significant higher weight gain and specific growth rate (SGR) than the control (p<0. 05). The specific activity for total protease and amylase in 1% PHB was significantly higher than that of both the control and 2% PHB (p<0. 05). In addition, PHB significantly affected the muscle fatty acids profile but did not change protein and lipid content. Also, our results indicated that 1 and 2% PHB markedly decreased cumulative mortality of the fingerlings challenged by Yersinia ruckeri infection. Overall, the results of this experiment revealed that PHB acts as a Growth promoter and immunostimulator in Rainbow trout fingerlings and the optimal PHB level in trout diet was estimated at 1% PHB.

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    APA: Copy

    NAJDEGERAMI, E.H.. (2020). Immunostimulatory and growth-promoting potential of poly-β-hydroxybutyrate in rainbow trout (Oncorhynchus mykiss) fingerlings culture. IRANIAN JOURNAL OF FISHERIES SCIENCES, 19(2), 847-865. SID. https://sid.ir/paper/748552/en

    Vancouver: Copy

    NAJDEGERAMI E.H.. Immunostimulatory and growth-promoting potential of poly-β-hydroxybutyrate in rainbow trout (Oncorhynchus mykiss) fingerlings culture. IRANIAN JOURNAL OF FISHERIES SCIENCES[Internet]. 2020;19(2):847-865. Available from: https://sid.ir/paper/748552/en

    IEEE: Copy

    E.H. NAJDEGERAMI, “Immunostimulatory and growth-promoting potential of poly-β-hydroxybutyrate in rainbow trout (Oncorhynchus mykiss) fingerlings culture,” IRANIAN JOURNAL OF FISHERIES SCIENCES, vol. 19, no. 2, pp. 847–865, 2020, [Online]. Available: https://sid.ir/paper/748552/en

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