王锦绣,王炬光,李伟,白婵,祁雪,李豪华,邱亮,熊光权,廖涛

• 1:武汉工程大学
• 2:化学与环境工程学院
• 3:湖北省农业科学院农产品加工与核农技术研究所/农业农村部农产品冷链物流技术重点实验室
• 4:洪湖市大同湖管理区水产技术服务中心

摘要(Abstract)：

【目的】研究不同运输密度和时间对大口黑鲈（Micropterus salmoides）幼鱼生理生化指标及肝肠组织结构的影响，为其合理科学运输提供理论依据。【方法】将大口黑鲈幼鱼置于塑料盒中进行模拟运输实验，分别于运输前（0 h）和运输后的4、8、12、20 h取样，对存活率、水质、血清和肝脏理化指标进行了分析。【结果】与运输前相比，运输过程中水体总氨氮浓度和pH显著升高，即时存活率显著降低。运输密度和时间对大口黑鲈幼鱼即时存活率、水体总氨氮含量、应激及抗氧化指标均具有显著交互作用。1∶2、1∶4、1∶5密度组皮质醇含量在4 h达到最高，1∶3密度组在8 h达到最高，之后逐渐降低。肝脏总抗氧化能力和超氧化物歧化酶与运输前相比显著升高，还原型谷胱甘肽含量显著降低，各密度组肝脏和肠道均出现不同程度的组织损伤（α=0.05）。【结论】运输时长小于4 h时，可适当采用较高的鱼水比（1∶2）运输，运输时长大于10 h时，宜采用较低的鱼水比（1∶5）进行运输。

关键词(KeyWords)： 大口黑鲈幼鱼;运输密度;应激指标;即时存活率;组织结构

Abstract:

Keywords:

基金项目(Foundation): 国家现代农业产业技术体系专项资助（CARS-46）;; 湖北省农业科技创新中心重大科技研发专项（2020-620-000-002-03）

作者(Author): 王锦绣,王炬光,李伟,白婵,祁雪,李豪华,邱亮,熊光权,廖涛

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