大口黑鲈(Micropterus salmoides)皮肤组织结构观察  

Tissue Structure of the Skin in Micropterus salmoides

作　　者：何早 马英 刘洪李 黄小丽[1] HE Zao;MA Ying;LIU Hongli;HUANG Xiaoli(Department of Aquaculture,College of Animal Science&Technology,Sichuan Agricultural University,Chengdu 611130,China)

机构地区：[1]四川农业大学动物科技学院水产系,成都611130

出　　处：《四川农业大学学报》2025年第1期57-62,共6页Journal of Sichuan Agricultural University

基　　金：四川省国际科技创新合作/港澳台科技创新合作项目(2024YFHZ0346)。

摘　　要：【目的】明确大口黑鲈(Micropterus salmoides)的皮肤组织学特点,为鱼类皮肤病的诊断与防控提供基础资料。【方法】利用石蜡切片和H&E、AB-PAS及Masson染色,观察大口黑鲈全身皮肤组织结构。【结果】大口黑鲈各部位皮肤均由表皮和真皮组成,部分区域还包括皮下组织层,不同部位皮肤各层厚度稍有差异。眼眶和中腹皮肤较厚,下颌及鳃盖后缘较薄。表皮中的黏液细胞以Ⅲ型和Ⅳ型为主,中腹分布较多,枕部和眼眶较少。此外,大口黑鲈全身皮肤均有鳞片覆盖,在尾鳍皮肤中亦可见鳞片。【结论】大口黑鲈的皮肤组织结构与其他鱼类相似,值得注意的是在尾鳍处发现鳞片。【Objective】This study aims to elucidate the histological characteristics of the skin in Micropterus salmoides,providing foundational data for the diagnosis and prevention of fish skin diseases.【Method】The tissue structure of skin in M.salmoides was observed by paraffin section,haematoxylin-eosin(HE),alcian blue-periodie acid schiff(AB-PAS)and masson's trichrome staining.【Result】The skin in M.salmoides is uniformly composed of the epidermis and dermis,with some areas also containing a subcutaneous tissue layer,exhibiting slight variations in the thickness of each layer in different parts.The skin around orbital and mid-ventral aera is relatively thicker,whereas the areas around mandible and posterior margin of the operculum are comparatively thinner.The epidermis predominantly contains typesⅢandⅣmucous cells,with a higher distribution in mid-ventral,and a lower distribution in occipital and orbital.Additionally,M.salmoides is covered with scales across its entire body,and scales are also visible in the skin of the caudal fin.【Conclusion】This study found that the tissue structure of skin in M.salmoides is similar to that of other fishes,with the notable finding of scales in caudal fin.

关 键 词：大口黑鲈 皮肤 组织结构 黏液细胞 

分 类 号：S965.211[农业科学—水产养殖]