Dietary Copper Requirement of Juvenile Oriental River Prawn Macrobrachium nipponense, and its Effects on Growth, Antioxidant Activities, and Resistance to Aeromonas hydrophila

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dc.contributor.author Kong, You-Qin
dc.contributor.author Ding, Zhi-Li
dc.contributor.author Du, Zhen-Yu
dc.contributor.author Sun, Sheng-Ming
dc.contributor.author Wang, Li-Gai
dc.contributor.author Li, Er-Chao
dc.contributor.author Chen, LI-Qiao
dc.date.accessioned 2022-03-20T23:42:12Z
dc.date.available 2022-03-20T23:42:12Z
dc.date.issued 2014
dc.description.abstract The present experiment evaluated the effects of dietary copper (Cu) on growth, antioxidant activities, and susceptibility to Aeromonas hydrophila infection of juvenile Oriental river prawn Macrobrachium nipponense, as well as determining the optimal dietary copper requirement. Semi-purified diets containing seven graded levels of copper (2.8, 12.2, 20.9, 29.8, 43.1, 78.9 and 157.1 mg/kg diet) from CuSO4⋅5H2O were fed to juvenile prawn (initial weight 0.101±0.002 g). The weight gain of prawns fed with 2.8-78.9 mg/kg Cu was higher and they had lower feed conversion ratios than the group fed 157.1 mg/kg Cu. Cu concentrations in the hepatopancreas, muscle, and whole body in prawns tended to increase with increased dietary Cu concentration. Hepatopancreas Cu-Zn superoxide dismutase (Cu-Zn SOD) activity, glutathione peroxidase (GPx), and total antioxidant competence (T-AOC) were highest (P<0.05) in the 43.1 mg/kg Cu group. The hepatopancreas malondialdehyde (MDA) content was lower (P<0.05) in the prawns fed 29.8 mg/kg Cu than that in prawns fed 2.8, 12.2, 78.9 and 157.1 mg/kg Cu. After the feeding experiment, prawns were injected with A. hydrophila, and the cumulative mortality rate of the prawns fed with 20.9-43.1 mg/kg Cu was lower than the prawns fed with 2.8 and 157.1 mg/kg Cu. The optimum requirement of dietary Cu in juvenile prawns was estimated at 26.9-27.8 mg/kg diet based on cumulative mortality rate and whole-body Cu retention.
dc.format.extent 8 pages
dc.identifier.doi https://doi.org/10.46989/001c.33753
dc.identifier.issn 0792-156X
dc.identifier.uri http://hdl.handle.net/10524/65646
dc.relation.ispartof The Israeli Journal of Aquaculture - Bamidgeh
dc.subject Macrobrachium nipponense
dc.subject copper requirement
dc.subject growth
dc.subject antioxidant activity
dc.subject challenge
dc.title Dietary Copper Requirement of Juvenile Oriental River Prawn Macrobrachium nipponense, and its Effects on Growth, Antioxidant Activities, and Resistance to Aeromonas hydrophila
dc.type Article
dc.type.dcmi Text
prism.volume 66
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Volume 66, 2014