一隻雞蛋裡頭有雙蛋黃,究竟是人為所致還是天然隨機發生的呢?314Please respect copyright.PENANAvrXTRNlbi3
314Please respect copyright.PENANAZFt1Wpzpgs
314Please respect copyright.PENANAiODqfmi4Xm
314Please respect copyright.PENANAVT5iN8aQg9
(圖2)在回答之前,我們需要了解一下雞蛋在母雞裡生產的過程。314Please respect copyright.PENANA5PBgZ53OU1
314Please respect copyright.PENANAUrckGQz0Bt
314Please respect copyright.PENANA7ppxhDe5Eb
當卵子從卵巢(Ovary)排出後,便會在Infundibulum逗留約15-30分鐘。314Please respect copyright.PENANAisL6ciq6ZO
若果在此時遇上精子的話,便會進行受精,生出來的雞蛋有機會可孵出小雞。314Please respect copyright.PENANA0JCHHo3fMT
不過無論受精與否,卵子隨後便抵達Magnum,在該位置的細胞會釋出各種蛋白質,圍繞著卵子的蛋黃製作蛋白,這過程歷時約2-3小時。314Please respect copyright.PENANATwE6vN7JL9
314Please respect copyright.PENANAwafkT6zflU
之後就會到達Isthmus,花費將1-2小時形成蛋殼內膜。314Please respect copyright.PENANA2c7w66vTJl
314Please respect copyright.PENANA2Uf8Y440Ep
最後就會來到Shell gland,逗留接近18-22小時,形成含豐富鈣質(鈣質佔蛋殼95%成份)的蛋殼,這同時亦是坊間為何經常利用蛋殼作施肥的原因。314Please respect copyright.PENANAYJmKVCWse5
314Please respect copyright.PENANAt11aaktHQA
314Please respect copyright.PENANABOwg8IUPmd
(圖3)有科學家對雞隻進行實驗。在實驗1裡頭,往雞隻增加注射雌激素的話,雞蛋出現雙黃的機率亦會隨之增加。314Please respect copyright.PENANAwk62cj6ERw
314Please respect copyright.PENANA8odYWhaxIj
314Please respect copyright.PENANAw5pdFQqjsX
但是,這現象並沒有出現在實驗2裡頭。314Please respect copyright.PENANAQCj4FBR9hb
314Please respect copyright.PENANAftOQd6Bmoi
文中作者表示實驗1所用的雞隻較實驗2的為年輕足足一個月有多,而同時的確亦有不同證據(Ref3)指出年輕雞隻所生的雞蛋出現雙黃的機率亦較高;314Please respect copyright.PENANAqDZF9wWy0B
年輕(4-12.5%)vs年長(1.12-3.53%)。314Please respect copyright.PENANAjks0pnV71u
314Please respect copyright.PENANAbXpA0WJvHU
這相信是年輕母雞的排卵及生產雞蛋的機制尚未完善,例如不經意地造就雙黃聚在一起共同在Magnum製作蛋白等,因而造就雙黃情況。314Please respect copyright.PENANAPmXLIqUvn1
314Please respect copyright.PENANAjlo3IaqLRx
之於荷爾蒙方面,雌激素能刺激雞隻肝臟製作更多釀成蛋黃及脂肪的原料,在年輕雞隻中亦能增加生產錯誤的機率,釀成雙黃局面。314Please respect copyright.PENANAt3VDcPEJRg
314Please respect copyright.PENANAeAPm53tJGd
但相信基於是年老的母雞已發展出完善的排卵程序、又或是對雌激素已失去敏感度,出現雙黃的機率並不沒有受雌激素影響得到。314Please respect copyright.PENANAbjJGD1TPHc
314Please respect copyright.PENANA6BN5wWcEWF
314Please respect copyright.PENANACo8xgOITIq
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。314Please respect copyright.PENANA6D2JjY3QYi
314Please respect copyright.PENANA7JZ8MtkGhp
Link: https://www.penana.com/story/66244/%E7%A7%91%E6%99%AE%E5%B0%88%E6%AC%84-%E8%96%AF%E4%B8%8D%E6%8F%80%E5%96%AE/toc314Please respect copyright.PENANAoqhQQGvy9D
314Please respect copyright.PENANAUdR31gnSQW
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。314Please respect copyright.PENANAPf5Zkov5df
314Please respect copyright.PENANA1qUjvwHHs0
Link:314Please respect copyright.PENANAYOyR7plntE
https://www.penana.com/user/27349/%E8%96%AF%E4%BB%94%E8%81%9E%E8%8C%B1%E8%8E%89/portfolio314Please respect copyright.PENANA1tPqMf0xgq
314Please respect copyright.PENANAdYeX51VwjR
314Please respect copyright.PENANAMftcFa3yVn
除非Facebook及IG重開侵侵的account,否則我的IG將不會再作更新,只會寄居本土LIHKG及Penana。314Please respect copyright.PENANAZAR0G6ohvI
314Please respect copyright.PENANAuQyoKjFO8k
Ref1:http://www2.ca.uky.edu/agcomm/pubs/ASC/ASC201/ASC201.pdf314Please respect copyright.PENANAjtiT5UXXOH
Ref2:https://www.sciencedirect.com/science/article/pii/S0032579119512536314Please respect copyright.PENANAK4LLAWfso5
Ref3:https://www.tandfonline.com/doi/abs/10.1080/00439339.2020.1729671314Please respect copyright.PENANAX42sP9umeQ
arrow_back
科普專欄–薯不揀單
more_vert
-
info_outline 資料
-
toc 目錄
-
share 分享
-
format_color_text 介面設置
-
exposure_plus_1 推薦
-
打賞
-
report_problem 檢舉
-
account_circle 登入
X
科普專欄–薯不揀單
作者:
薯仔聞茱莉
篇 #179
三十秒科學–雞蛋出現雙黃是天然或是人為?
喜歡 1
閱讀 310
書籤 148
campaign
催更 0
打賞
以 Facebook 帳號登入
或 註册/登入 以留言或加上書籤
按此加載下一章
X
每次催更後,作者都會收到通知!
smartphone100 → 催更
×
寫下你喜歡這個故事的地方
×
對此喜歡的人