2010年4月22日星期四

公雞轉性生雞蛋 困惑科學家

現在我是雞女!詹尼那性別扭曲的公雞開始生蛋,困惑科學家
Now I'm a chick! Gianni the gender-bending cockerill starts to lay eggs, baffling scientists

By Daily Mail Reporter
Last updated at 1:40 PM on 21st April 2010

Gianni started life as a red-blooded cockerel and would often wake his Italian owners up crowing on his farm in Tuscany.

But when a fox raided Gianni's enclosure and killed all of the hens inside, Gianni felt it was time for a change.
Within days the bird was laying eggs and trying to hatch them as he began his new life as a hen.

All change: Gianni the former rooster has taken to laying eggs and trying to hatch them
全都改變:詹尼那前公雞已決定下蛋和試圖孵化 它們

The sex-change chicken has baffled scientists at the UN's Farm and Agriculture Organisation, who are now planning to study Gianni's DNA to see what made him change.
An expert at the centre said: 'It may be a primitive species survival gene. With all the females gone he could only ensure the future of his line by becoming female.'

Professor Donato Matassino, who will be leading tests on Gianni, said: 'This rooster-hen will be taken to the laboratories of Consdabi for a series of behavioural and genetic tests.

'This will allow us to decipher this bizarre DNA mix up that appears to have literally given what looks like two chickens in one.'
Professor Donato said the cockerel-hen was transported by train to Naples where the laboratories are based.

http://www.dailymail.co.uk/news/worldnews/article-1267691/Gianni-gender-bending-rooster-starts-lay-eggs.html

狐狸吃掉母雞
公雞轉性識生蛋

2010年04月21日
公雞變母雞,簡直不可思議。意大利有隻小公雞,所住的雞場遭狐狸偷襲,狐狸把母雞吃掉,令小公雞變成「孤家寡人」,幾天後竟然變了性,還每天生蛋孵蛋,令科學家嘖嘖稱奇。
小公雞詹尼( Gianni)居於托斯卡納區( Tuscany)一個雞場,主人指雞場早前被狐狸襲擊,把所有母雞吃掉,惟獨詹尼平安無恙。數天後,詹尼竟像母雞一樣生蛋。
公雞變母雞,令科學家摸不着頭腦,聯合國糧農組織( FAO)科學家正研究箇中原因,初步估計這是原種的生存基因作祟,當所有母雞死清光,詹尼要延續自己的後代,惟有變成雌性。
英國 Orange網站
http://hk.apple.nextmedia.com/template/apple/art_main.php?iss_id=20100421&sec_id=15335&subsec_id=10943028&art_id=13950346

變種「公雞」內藏 10隻蛋
2010年09月14日
公雞會生蛋,肚裏還藏着 10隻蛋?河南鄭州李女士上周六( 11日)在家殺了一隻「公雞」,牠肚子裏竟有 10隻雞蛋(圖)。她說,去年買一批小雞回家後陸續生蛋,但其中有雞冠特別大的三隻卻從不下蛋,也不打鳴,並發現牠們(包括被宰殺的一隻)的屁股還越來越大,彷彿裏面長了東西。
「雞冠大小和雞的品種有關,不能就此判斷牠是公雞。」鄭州畜牧獸醫專家稱,牠們可能是得病母雞,輸卵管破裂,導致蛋殼還沒有形成就滾到了腹腔裏,腹腔裏的蛋越來越多,屁股就給撐大了。
《河南商報》
http://hk.apple.nextmedia.com/template/apple/art_main.php?iss_id=20100914&sec_id=15335&subsec_id=15336&art_id=14447741

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