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当前位置: 首页 > 文章 > 饲喂不同浓度黄曲霉毒素B1饲料对草鱼幼鱼生长和毒素积累的影响 水生生物学报 2019,43 (4) 723-730
Position: Home > Articles > EFFECTS OF AFLATOXIN B1 ON GROWTH AND TISSUE ACCUMULATION OF JUVENILE GRASS CARP (CTENOPHARYNGODON IDELLUS) Acta Hydrobiologica Sinica 2019,43 (4) 723-730

饲喂不同浓度黄曲霉毒素B1饲料对草鱼幼鱼生长和毒素积累的影响

作  者：
黄莹;姚远;朱晓鸣;王寿昆;许伟华;刘雨龙;陈新华
单  位：
福建农林大学动物科学学院;中国科学院水生生物研究所
关键词：
黄曲霉毒素B1;草鱼幼鱼;生长;肝脏;肾脏;毒素积累
摘  要：
以含不同浓度黄曲霉毒素B1(AFB1)(0、10、20、100、1000和5000μg/kg饲料)的6种等氮等能(32.96%蛋白质,14.55 kJ/g能量)配合饲料饲喂平均初始体质量为(2.90±0.16)g草鱼(Ctenopharyngodon idellus)幼鱼84d,探讨AFB1对草鱼幼鱼生长、肝胰脏和肾脏组织结构以及鱼体肌肉中的毒素积累的影响.实验分为6个实验组,每组3个平行.结果表明,在整个实验过程中各实验组幼鱼的行为均未表现出异常,各组幼鱼的存活率、终末体重、摄食率、特定生长率、饲料效率、肝体比、脏体比均无显著差异.饲料AFB1水平对草鱼幼鱼血清谷丙转氨酶(ALT)、谷草转氨酶(AST)、碱性磷酸酶(AKP)、超氧化物岐化酶(SOD)和谷胱甘肽过氧化物酶(GSH-Px)活性均无显著影响.各毒素组和对照组肝胰脏、肾脏组织学观察中未发现病理变化.摄食AFB1≤1000μg/kg的草鱼幼鱼肌肉中未检测出AFB1残留,仅在5000μg/kg实验组中检测出肌肉中含有(1.21±0.18)μg/kg的AFB1,低于FDA食品安全限定标准.由此可见,草鱼幼鱼至少可耐受AFB1含量达5000μg/kg饲料(实测值:4979.2μg/kg饲料)84d.
译  名：
EFFECTS OF AFLATOXIN B1 ON GROWTH AND TISSUE ACCUMULATION OF JUVENILE GRASS CARP (CTENOPHARYNGODON IDELLUS)
作  者：
HUANG Ying;YAO Yuan;ZHU Xiao-Ming;WANG Shou-Kun;XU Wei-Hua;LIU Yu-Long;CHEN Xin-Hua;College of Animal Science, Fujian Agriculture and Forestry University;State Key Laborator y of Freshwater Ecology and Biotechnology, Institute of Hydrobiology, Chinese Academy of Sciences;Key Laboratory of Marine Biotechnology of Fujian Province, Institute of Oceanology, Fujian Agriculture and Forestry University;
关键词：
Aflatoxin B1;;Ctenopharyngodon idellus;;Growth;;Liver;;Kidney;;Accumulation
摘  要：
A 84-day feeding trial was conducted to evaluate the effects of dietary aflatoxin B_1(AFB_1) on growth,physiological responses, histological changes, and accumulation in juvenile grass carp(Ctenopharyngodon idellus).Triplicate groups of grass carp [(2.90±0.16) g] were fed with six semipurified diets formulated with isonitrogenous(crude protein: 32.96%), isocaloric(gross energy: 14.55 kJ/g) containing 0, 10, 20, 100, 1000 and 5000 μg/kg AFB_1.AFB_1 did not significantly impact behavior, the survival rate, final body weight(FBW), feeding rate(FR), specific growth rate(SGR) or feed efficiency(FE). No significant differences were found in hepatosomatic index(HSI) and viscera index(VSI) among all groups. AFB_1 had no significant effect in activities of serum alanine aminotransferase(ALT), aspartate aminotransferase(AST), alkaline phosphatase(ALP), superoxide dismutase(SOD) and glutathione peroxidase(GSH-Px). No significant histological lesions in hepatopancreas and kidney were identified between the control and increasing AFB_1 treatments. No AFB_1 residue was detected in muscles when fish fed with AFB_1 up to 1000 μg/kg, however, tiny dose [(1.21±0.18) μg/kg] of AFB_1 were detected in muscles in the group with 5000 μg/kg AFB_1,which was below the safety limitation of FDA. The results indicated that juvenile grass carp is a little susceptible species to AFB_1 exposure up to approximately 5000 μg/kg diet(determined level was 4979.2 μg/kg diet), at least for 84 days.

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