روشهای تشخیص ماهی تازه از ماهی مانده و ماهی فاسد

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ماهی تازه ماهی تازه

علائم ظاهری

ویژگی های ماهی تازه

خصوصیات ماهی مانده

خصوصیات ماهی فاسد

جلوم

ظاهری درخشنده و شفاف

بدون درخشندگی (کدر)

فاقد درخشندی، کدر و تیره

گشش

قرمز، روشن عاری از ماده لزج

بی رنک، گشاد به راحتی می شود

قهوشی تیره، مملو از مواد لزج

چشم

شفاف، روشن و درخشان

کدر، فرو برده

چشمها کاملا گود و فرورفته

سرپوش آبششی

کاملا برجسته و بسته

باز و بلندشده و بسته نیست

کاملا باز است

فلس ها

درخشان، براق، محکم، چسبیده به بدن

کدر، برهتی از پوست جدا می شود

سست و نرم و برهتی می شود.

بوی

طبیعی و عاری از بوی گندیده

بوی نازایی

بوی گندیدهگی و غیر طبیعی

دهان

بستگی دارد

باز است

باز است

دیوار شکم

محکم و قابلیت ارتجاعی کافی

به حالت خوابیده درآمد

شکم خمیده شکل به راحتی پاره می شود

خون

خون محوطه شکمی روشنو بدون بو

خون تیره، کمی بوی غیر طبیعی است

قهوهای رنگ، بوی تعفن

گوتهوری

در آب فرو میرود

شناور در آب

شناور در آب

عضلات

محکم و ارتجاعی، اتصال به استخوان، محکم، اثر انگشت روی عضله نمیماند.

عضلات نرم و راحت از استخوان جدا می شود

پليسیده، فيشر وشل، در اثر فشار انگشتن فروئيجی ایجاد می شود

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