Hemp (Marijuana) reverted Copper-induced toxic effects on the essential fatty acid profile of Labeo rohita and Cirrhinus mrigala

Heavy metals pollution affects the nutritive value of fish. This study examined if the inclusion of dietary hempseed (HS) and hempseed oil (HO) in the diet of the fish could revert the copper-induced toxic effects on muscle fatty acid profile of rohu ( Labeo rohita ) and mrigal ( Cirrhinus mrigala )...

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Bibliographic Details
Published in:Molecular biology reports 2019-02, Vol.46 (1), p.391-401
Main Authors: Afridi, Azam Jan, Zuberi, Amina, Yousafzai, Ali Muhammad, Maria, Kamran, Muhammad, Ullah, Sana
Format: Article
Language:English
Subjects:
Animal Anatomy
Animal Biochemistry
Biomedical and Life Sciences
Cannabis
Cirrhinus mrigala
Copper
Fatty acid composition
Fatty acids
Fish
Heavy metals
Histology
Labeo rohita
Life Sciences
Morphology
Nutritive value
Original Article
Ratios
Species
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Summary:Heavy metals pollution affects the nutritive value of fish. This study examined if the inclusion of dietary hempseed (HS) and hempseed oil (HO) in the diet of the fish could revert the copper-induced toxic effects on muscle fatty acid profile of rohu ( Labeo rohita ) and mrigal ( Cirrhinus mrigala ). Fingerlings of both species were exposed to a sub-lethal concentration of copper i.e., 20% of LC 50 (1.34 ppm for rohu and 1.52 ppm for mrigal) for 96 h for 30 days. Following exposure, fish were maintained on graded levels of HO (1, 2 and 3%) or on HS (5, 10 and 15%) for 50 days. Copper exposure showed a significant effect on the fatty acid composition of both species; increased their saturated (SFA) to unsaturated (USFA) and altered their omega-3/omega-6 (ω-3/ω-6) ratios. However, feeding graded levels of hempseed products reverted the toxic effects of copper on the fatty acid profile of both the species, significantly increased muscle total fatty acid contents, improved ω-3/ω-6 ratios, and decreased SFA / USFA ratio in % inclusion dependent manner. Furthermore, hempseed product showed a species-specific effect on USFA. The ω-3/ω-6 ratios decreased in the muscle of C. mrigala whereas an increasing trend with an increase in hempseed product % inclusion was observed in L. rohita . Moreover, HS showed a higher impact on both species as compared to HO. With the findings of this study, hempseed product could be recommended as a feed ingredient for enhancing the essential fatty acid contents of fish which in turn can have a good impact on consumer health.
ISSN:0301-4851
1573-4978
DOI:10.1007/s11033-018-4483-2