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?318Please respect copyright.PENANA3liBeHxFNu318Please respect copyright.PENANAn3bKi019gg
318Please respect copyright.PENANAH8MzGeIpwo
318Please respect copyright.PENANAlGcl7WrV65
(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。318Please respect copyright.PENANAU19welSGCZ318Please respect copyright.PENANAFeynaXoCvX
318Please respect copyright.PENANAZDBH0KMDwG
當卵子從卵巢(Ovary)排出後,便會在Infundibulum逗留約15-30分鐘。318Please respect copyright.PENANAzCNfGSsTFb
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。318Please respect copyright.PENANA6lDkUbWovk
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。318Please respect copyright.PENANAvFIaGNTlVw
318Please respect copyright.PENANAjCMZKcKFja
之後就會到達Isthmus,花費將1-2小時形成蛋殼內膜。318Please respect copyright.PENANAF0HsD0y2Du
318Please respect copyright.PENANABXdhmOP5Gj
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。318Please respect copyright.PENANA4M3OBEvibE
318Please respect copyright.PENANA5RYHs60y0I
318Please respect copyright.PENANALjF5vcOnB4
(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。318Please respect copyright.PENANA15ZhIgxLUV318Please respect copyright.PENANA14yljt3YXr
318Please respect copyright.PENANA0oXigF0PmA
但是,這現象並沒有出現在實驗2裡頭。318Please respect copyright.PENANAiJp74IDw6O
318Please respect copyright.PENANADVGEQFTrq4
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;318Please respect copyright.PENANAGxmyoZxeyG
年輕(4-12.5%)vs年長(1.12-3.53%)。318Please respect copyright.PENANA2vrfRlZpd5
318Please respect copyright.PENANAFXrA9cYGvt
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。318Please respect copyright.PENANAQapZCYgbq3
318Please respect copyright.PENANAcoKByiJZy9
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。318Please respect copyright.PENANAJTZlhMZv5b
318Please respect copyright.PENANANvtx00e5Bc
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。318Please respect copyright.PENANAkVMhqC84eL
318Please respect copyright.PENANA2PcwvFIUoA
318Please respect copyright.PENANAblbaXMA9TB
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。318Please respect copyright.PENANAJhWeUNxP1i
318Please respect copyright.PENANAJ85j9qWnEx
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/toc318Please respect copyright.PENANAJM6ZCdycVr
318Please respect copyright.PENANAZeCOWg054S
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。318Please respect copyright.PENANAXtXUaD2Knf
318Please respect copyright.PENANAxw7x6gQ1Et
Link:318Please respect copyright.PENANA320eg1VdD0
https://www.penana.com/user/27349/%E8%96%AF%E4%BB%94%E8%81%9E%E8%8C%B1%E8%8E%89/portfolio318Please respect copyright.PENANANhXLdLfdFW
318Please respect copyright.PENANAKzVDlW34CY
318Please respect copyright.PENANA3W6at8K1it
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。318Please respect copyright.PENANAQQ2sfBC3fN
318Please respect copyright.PENANAL4R80qqzp2
Ref1:http://www2.ca.uky.edu/agcomm/pubs/ASC/ASC201/ASC201.pdf318Please respect copyright.PENANAZcgiQYF3d1
Ref2:https://www.sciencedirect.com/science/article/pii/S0032579119512536318Please respect copyright.PENANAL7pW3JwOiQ
Ref3:https://www.tandfonline.com/doi/abs/10.1080/00439339.2020.1729671318Please respect copyright.PENANAfzkM1vZOVf
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
![薯仔聞茱莉](https://static2.penana.com/fit-in/24x24/images/users/large/10/56/10560680635a34d605a71d62.38826921-27349.jpeg)
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 314
書籤 148
campaign
催更 0
打賞
![](https://static2.penana.com/img/social/facebook.png)
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