许振民,陈子钊,崔海涛,王中铎,郭昱嵩

• 1:广东海洋大学水产学院南海水产经济动物增养殖重点实验室
• 2:广东省水产动物病害防控与健康养殖重点实验室

摘要(Abstract)：

【目的】揭示红鳍笛鲷（Lutjanus erythropterus）红体色的分布特征及影响机制。【方法】利用色差仪分别测定背部、腹部和尾部皮肤的体色值，用形态学观察、石蜡切片、冰冻切片和透射电镜切片等方法分析色素细胞组成、分布和数量特征，并使用紫外分光光度法和液相色谱-质谱/质谱法研究类胡萝卜素和体色特征的关系。【结果与结论】红鳍笛鲷体表的红色素细胞显著多于黑色素细胞（P <0.001），且从背部向腹部逐渐减少，红体色受到黑色素细胞分布的影响；皮肤和视网膜是类胡萝卜素的主要沉积部位，皮肤中类胡萝卜素以脂肪酸结合的形式存在，其中红色类胡萝卜素主要有虾青素、角黄素和β-柠乌素等3种，虾青素和角黄素含量与红色素细胞数量呈正相关。建议在饲料中补充虾青素和角黄素以提升红色。

关键词(KeyWords)： 红鳍笛鲷;色素细胞;组织切片;类胡萝卜素

Abstract:

Keywords:

基金项目(Foundation): 国家自然科学基金（31972794）;; 广东海洋大学创新强校项目（230419055）

作者(Author): 许振民,陈子钊,崔海涛,王中铎,郭昱嵩

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