NDLI: The efficacy of three mycotoxin adsorbents to alleviate aflatoxin B1-induced toxicity in Oreochromis niloticus

Content Provider	Springer Nature Link
Author	Selim, Khaled M. El hofy, Hana Khalil, Riad H.
Copyright Year	2013
Abstract	Aflatoxicosis, toxicity of aflatoxin, is of great concern in aquaculture. This study was conducted to assess the efficacies of three adsorbents, a hydrated sodium calcium aluminosilicates (HSCAS), Saccharomyces cerevisiae (S.C.) and an esterified glucomannan (EGM), against feed contaminated with contained 200 μg/kg (ppb) aflatoxin B1 (AFB1). A total of 240 Nile tilapia fingerlings, Oreochromis niloticus (15 ± 2 g), were randomly divided into eight experimental groups (30 fish per group) with three replicates. Group T1 represented the negative control fed on a basal diet, and T2 was the positive control group fed on a basal diet supplemented with 200 ppb AFB1. Groups T3, T4 and T5 were fed the AFB1-contaminated diet (200 ppb) supplemented with 0.5 % HSCAS, 0.25 % S.C or 0.25 % EGM, respectively. Groups T6, T7 and T8 were fed a basal diet supplemented with 0.5 % HSCAS, 0.25 % S.C or 0.25 % EGM, respectively. The reduction in AFB1-bioavailability was judged by toxin residues in fish musculature throughout the study beginning at the second week of exposure. AFB1 reduced the survivability, total weight gain, average daily gain and specific growth rate, evident as early as the second week of exposure. The total erythrocyte count, hemoglobin content and total leukocyte count were significantly decreased after AFB1 exposure for 6, 8 and 10 weeks, respectively. Prolonged administration of AFB1 led to significant increases in serum alanine transaminase, aspartate transaminase and creatinine activity, and produced significant decreases in plasma proteins, including serum globulin. The specific immune response was assessed by an agglutinating antibody titer after immunization of the fish with an Aeromonas hydrophila vaccine. The antibody titer and relative level of protection of fish challenged with Aeromonas hydrophila were reduced throughout the period of examination in AFB1-exposed fish. Supplementation with HSCAS, S.C. or EGM significantly improved growth performance, blood parameters and immune status; in addition, these groups showed decreased AFB1 residues in fish musculature when compared with AFB1-treated fish. HSCAS effectively reduced AFB1 toxicity, whereas S.C. and EGM were less efficacious.
Starting Page	523
Ending Page	540
Page Count	18
File Format	PDF
ISSN	09676120
Journal	Aquaculture International
Volume Number	22
Issue Number	2
e-ISSN	1573143X
Language	English
Publisher	Springer International Publishing
Publisher Date	2013-06-23
Publisher Place	Cham
Access Restriction	One Nation One Subscription (ONOS)
Subject Keyword	Aflatoxin B1 Nile tilapia Blood parameter Immunity Residue HSCAS Saccharomyces cerevisiae Esterified glucomannan Freshwater & Marine Ecology Zoology
Content Type	Text
Resource Type	Article
Subject	Aquatic Science Agronomy and Crop Science

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Susceptibility of Nile tilapia (Oreochromis niloticus) fed with dietary sodium chloride to nitrite toxicity

Dietary threonine requirement of juvenile Nile tilapia, Oreochromis niloticus

Protection of Nile tilapia, Oreochromis niloticus from aflatoxin B1 toxicity by dietary supplementation with Fennel essential oil and Saccharomyces cerevisiae

Comparative ameliorative effect of Hydrated sodium calcium aluminosilicate and Saccharomyces cerevisiae (Brewer's yeast) against toxic impact of aflatoxin B1 in Oreochromis niloticus (Nile tilapia)

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The efficacy of three mycotoxin adsorbents to alleviate aflatoxin B1-induced toxicity in Oreochromis niloticus

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