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生蚝有哪些种类
更新时间: 2020-09-17 00:00:00  

生蚝有长牡蛎, 大连湾牡蛎和近江牡蛎三大种类。以下分别进行介绍:

长牡蛎呈长片状,背腹缘几平行,长10厘米左右,高15厘米左右,右壳较小,鲜片坚厚,层状或层纹状排列,壳外面平坦或具数个凹陷,淡紫色、灰白色或黄褐色,内面瓷白色,壳顶二侧无小齿。左壳凹下很深,鳞片较右壳粗大,壳顶附着面小。大连湾牡蛎呈类三角形,背腹缘呈八字形,右壳外面淡黄色,具疏松的同心鳞片,鳞片起伏成波浪状,内面白色。左壳同心鳞片坚厚,自壳顶部放射助数个明显,内面凹下呈盒状,铰合面小。近江牡蛎呈圆形、卵圆形或三角形等,右壳外面稍不平,有灰、紫、棕、黄等色,环生同心鳞片,幼体者鳞片薄而脆,多年生长后鳞片层层相叠,内面白色,边缘有时淡紫色。生蚝,是所有食物中含有丰富的锌元素,富含高蛋白,是很好的补锌食物。

关键词: 哪些 种类

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