When we conducted a chemical assay of the uropygial preen gland secretions, we found 4 times more volatile octadecanol, nonadecanol, and eicosanol in ratios in males than in females, making them putative male pheromone candidates.

在這篇文章中，研究人員選取全世界最為廣泛的籠養(yǎng)鳥和模式實驗鳥－虎皮鸚鵡作為實驗對象日韩黄页无码精品视频，利用傳統(tǒng)的雙向選擇和GC-MS分析方法，證明鳥類確實存在"性信息素的通訊"。

Female birds also showed overt preferences for the odor of male preen gland secretions or the 3-alkanol blend equivalent preened onto the plumage of a male over that of female counterparts.

另一方面男女性爱黄色视频是免费，以往認為尾脂腺在鳥類中主要起到羽毛防水和折射不同波長光的作用，化學研究上也主要集中在對尾脂腺分泌的蠟脂成分的分析上国产在线精品综合色区。

In another test device with visible male bird stimulus, females chose the male with the 3-alkanol blend of males over the other male with female preen gland secretion, whereas did not differentiate their responses between the males with either this blend or male preen gland secretions.

正如論文評閱人所說：盡管很久以來就推測有些鳥的尾脂腺可能產(chǎn)生性信息素国产亚洲日韩欧美高清在线MV，但是該論文第一次提供了這類信息素組成的實驗證據(jù)，也為以后的同類研究提供了參考方法www.cn222aaa天天视频。

preen gland：尾脂腺

predisposition 因誘 | preen gland 尾脂腺 | preferent species 優(yōu)先種

preen gland：油腺(禽),潤羽腺

\\"膽前小管\\",\\"preductules bile\\" | \\"油腺(禽),潤羽腺\\",\\"preen gland\\" | \\"節(jié)前(神經(jīng))纖維\\",\\"preganglionic fiber\\"

preen gland：舐腺(尾脂腺)

視腺 (無脊椎動物),optic gland | 舐腺(尾脂腺),preen gland | 受精囊腺,spermathecal gland

preen gland：潤羽腺

預定 predetermination | 潤羽腺 preen gland | 前側板;前胸骨柄 pre-episternum