斑馬魚在成長的時候大多處於相對透明的狀態，其器官生長的過程可以說是亳無保留地呈現在眾人眼前。439Please respect copyright.ＰＥＮＡＮＡPmQKLh9Mlt
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對於專門研究生長機制的科學家來說，班馬魚絕對是一道非常方便用於研究的動物模型。439Please respect copyright.ＰＥＮＡＮＡR8v0z22qKu
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(圖2)約於受精後24小時，班馬魚的心臟亦將形成，且能收縮膨脹把紅血球送遍全身。439Please respect copyright.ＰＥＮＡＮＡqXfzgG3vId
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有科學家嘗試把一氧化碳注進水裡，試圖透過一氧化碳與紅血球的結合，抑制紅血球輸送氧氣的能力，從而探討初生時候的紅血球有甚麼功用。439Please respect copyright.ＰＥＮＡＮＡe9FODydTXK
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結果可謂出人意表，就算利用一氧化碳抑制紅血球輸氧的能力，頭5日內，斑馬魚依舊能吸取及耗用氧氣，其耗氧量跟對照組合並無分別。439Please respect copyright.ＰＥＮＡＮＡxcAilQ5qyN
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(圖3)從圖中可見，隨著生長時數推展，班馬魚的心臟跳動速度亦有所增長，但無論是否注入一氧化碳，其跳動速度亦無太大的分別。439Please respect copyright.ＰＥＮＡＮＡcOjbLPRa44
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這相信是因為頭5日的班馬魚體積非常微細，氧氣能夠透過自然擴散的方式進入班馬魚內部，並不需要紅血球的任何協助。439Please respect copyright.ＰＥＮＡＮＡ5nMHIrAPXi
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既然頭5日氧氣輸送並不需要紅血球的協助，那為何在受精的第一日後便已發展出撲撲跳的心臟呢?439Please respect copyright.ＰＥＮＡＮＡF7z47LQmRe
除了氧氣後，電解質或營養等物質均需透過血液循環系統輸送，它們自然擴散的效率比氧氣為低，需要依靠澎湃的心臟經由血管送到各部位內外。439Please respect copyright.ＰＥＮＡＮＡrZMLbKurrJ
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如果想我快啲出文的話，請入去Penana網站科普專欄–薯不揀單俾一個like以及Bookmark，這對我非常之重要。439Please respect copyright.ＰＥＮＡＮＡqBulXmiyVW
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同時亦可以在Penana網站裡按「買一嚿/半嚿薯仔」，以課金的方式推動我繼續搜羅資料寫文，多謝。439Please respect copyright.ＰＥＮＡＮＡXNTt8SDwuA
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Link:439Please respect copyright.ＰＥＮＡＮＡH4rQXWJCLe
https://www.penana.com/user/27349/%E8%96%AF%E4%BB%94%E8%81%9E%E8%8C%B1%E8%8E%89/portfolio439Please respect copyright.ＰＥＮＡＮＡEuZAmZidwu
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Ref1:https://pubmed.ncbi.nlm.nih.gov/8756015/
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