Chelation of mercury intoxication and testing different protective aspects of Lactococcus lactis probiotic in African catfish

The current study aimed primarily to test various probiotics (Lactococcus lactis (L. lactis), Enterococcus faecalis, Lysinibacillus sp., Citrobacter freundii, Bacillus subtilis, Bacillus amyloliquefaciens, Bacillus cereus, Citrobacter freundii and Leuconostoc mesenteroides) against 10, 20 and 30 ppm...

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Published inAquaculture research Vol. 52; no. 8; pp. 3815 - 3828
Main Authors El‐Bouhy, Zeinab M., Reda, Rasha M., Mahboub, Heba H., Gomaa, Fify N.
Format Journal Article
LanguageEnglish
Published Oxford Hindawi Limited 01.08.2021
Subjects
Additives
Albumins
antitoxic
Bacteria
Bioaccumulation
Catfish
Chelation
Citrobacter
Citrobacter freundii
Clarias gariepinus
Creatinine
Diet
Freshwater fishes
Globulins
Haematology
Hematology
Immunity
Intoxication
Lactococcus lactis
Lysozyme
Mercury
Mercury (metal)
Nitric oxide
oxidative stress
probiotic
Probiotics
Toxicity
Urea
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Summary:The current study aimed primarily to test various probiotics (Lactococcus lactis (L. lactis), Enterococcus faecalis, Lysinibacillus sp., Citrobacter freundii, Bacillus subtilis, Bacillus amyloliquefaciens, Bacillus cereus, Citrobacter freundii and Leuconostoc mesenteroides) against 10, 20 and 30 ppm of mercury (Hg). The most efficient probiotic upon applying MIC was L. lactis (33HT) that tested for ameliorating the Hg toxicity and investigated its influence on haematology, immunity, biochemical parameters and bioaccumulation. African catfish (n = 180) were divided into six equal groups including control (CT) fed a basal diet; supplemented basal diet with 109 and 1010 CFU/g of L. lactis, (L. lactis 9) and (L. lactis 10); control positive group (Hg) offered a basal diet incorporated with 0.13 ppm of Hg; Hg+ L. lactis 9 and Hg+ L. lactis 10 which received Hg (0.13 ppm) plus the same treatment of the 2nd and 3rd groups. Results clarified that the dietary additive of L. lactis improved the haematological picture and revealed a significant increase in lysozyme, antiprotease activity, nitric oxide, GSH, MDA, total protein, albumin and globulin. Besides modulating ALT, AST, urea and creatinine levels compared with other groups. The results propose the potential use of L. lactis to ameliorate Hg toxicity and as an immune stimulant.
ISSN:1355-557X
1365-2109
DOI:10.1111/are.15227