Journal
TOXINS
Volume 13, Issue 12, Pages -Publisher
MDPI
DOI: 10.3390/toxins13120844
Keywords
aflatoxin B-1; toxicity; Lateolabrax maculatus
Categories
Funding
- National Natural Science Foundation of China [31902388]
- Natural Science Foundation of Guangdong Province of China [2018A0303130301, 2021A1515010850]
- Science and Technology program of Guangdong Province [2019A050505007]
- Science and Tech-nology Planning Project of Guangzhou [202002030378]
- Special Fund for Scientific Innovation StrategyConstruction of High-Level Academy of Agriculture Science [R2018QD-075, TS-1-617]
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This study found that dietary AFB(1) up to 1.0 mg/kg was toxic to Lateolabrax maculatus, resulting in reduced growth, enhanced antioxidant and immune response, decreased intestinal trypsin activity, and impaired intestinal morphology.
This study was performed to assess the effects of dietary aflatoxin B-1 (AFB(1)) on the growth, antioxidant and immune response, digestive enzyme activities, and intestinal morphology of Lateolabrax maculatus during a 56-day feeding trial. Four diets were formulated including 0, 0.1, 0.5, and 1.0 mg/kg of AFB(1). Each diet was randomly assigned to 3 fish tanks with 40 fish per tank. Results indicated that the fish's final body weight, weight gain rate, specific growth rate, feed intake, condition factor, viscerosomatic index, hepatosomatic index, and intestinesomatic index decreased (p < 0.01) as dietary AFB(1) increased. AFB(1) levels in diets increased (p < 0.05) serum total antioxidant capacity (TAOC), superoxide (SOD), catalase, malondialdehyde (MDA), alkaline phosphatase (AKP), and lysozyme (LZM), and increased (p < 0.05) the TAOC, SOD, MDA, AKP, LZM, and immunoglobulin M in the livers of the fish. Dietary AFB(1) decreased (p < 0.05) intestinal trypsin activity and induced intestinal injury. In summary, dietary AFB(1) up to 1.0 mg/kg was toxic to L. maculatus as judged by reduced growth, enhanced antioxidant and immune response, decreased intestinal trypsin activity, and impaired intestinal morphology.
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