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Immuno-protective role of biologically synthesized dietary selenium nanoparticles against multiple stressors in Pangasinodon hypophthalmus.

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Title Immuno-protective role of biologically synthesized dietary selenium nanoparticles against multiple stressors in Pangasinodon hypophthalmus.
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Creator Kumar N*, Krishnani KK, Gupta SK, Sharma R, Baitha R, Singh DK, Singh NP
 
Subject Selenium nanoparticles Growth performance Antioxidative status Stress biomarkers Immunity Multiple stressors
 
Description Not Available
An environment friendly and sustainable approach is being emerged in the area of nanotechnology for ac- celerated growth and development of culturable aquatic animals hence green chemistry is gaining momentum in recent years. The present study has been carried out to delineate the effects of selenium nanoparticles (Se-NPs) on growth performance, antioxidative status and immunity of fish reared under lead (Pb) and high temperature (34 °C). Three hundred and fifteen fish were equally distributed in seven treatments in triplicates. Three iso- caloric and isonitrogenous experimental diets viz. control (Se-NPs-0 mg/kg), Se-NPs at 1 mg/kg and Se-NPs at 2 mg/kg were formulated. The fish were reared under lead (Pb, 1/21st of LC50 (4 ppm)) and high temperature
(34 °C) stress and fed with or without dietary Se-NPs. The effects of dietary Se-NPs were studied in terms of growth performance (Weight gain %, feed conversion ratio, protein efficiency ratio and specific growth rate), antioxidative status (catalase, superoxide dismutase, glutathione-S-transferase and glutathione peroxidase),
neurotransmitter enzymes (AChE), stress biomarkers (heat shock protein 70, serum cortisol, blood glucose, vi- tamin C), immunological status (total protein, A/G ratio and respiratory burst activity) in Pangasinodon hy- pophthalmus post challenge with Aeromonas veronii biovar sobria. Results of the investigation demonstrated sig-
nificant improvement of growth performance, antioxidative status, neurotransmitter enzyme activity, stress markers and more importantly enhanced immunity of the fish with dietary incorporation of Se-NPs at 1 mg/kg. In addition, post bacterial infection, the relative % survival increased and cumulative mortality % decreased in the group fed with Se-NPs at 1 mg/kg diet. Pb and high temperature treated and fed with control diet group
showed devastating impact on the growth performance, antioxidative status, stress markers and immunity of the fish. Similarly, application of Se-NPs at 2 mg/kg showed poor growth performance and elevated level of oxi- dative stress and other stress biomarkers including other biochemical attributes. Inclusive results indicated that,
Se-NPs at 1 mg/kg has capability to enhance overall performance and alleviate multiple stresses in P. hy- pophthalmus. Hence, Se-NPs at optimum level have ability to develop green chemistry in feed industry for better growth performance of the fish.
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Date 2022-06-18T07:25:52Z
2022-06-18T07:25:52Z
2018-04-21
 
Type Research Paper
 
Identifier Not Available
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http://krishi.icar.gov.in/jspui/handle/123456789/72930
 
Language English
 
Relation Not Available;
 
Publisher ELSEVIER