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91日本片不卡免费看片，利用傳統(tǒng)的雙向選擇和GC-MS分析方法72式免费A片视频，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.

另一方面亚洲一级毛片无码电影，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欧美人与禽ZOZOXXXX另类，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。

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)生性信息素国产成人精品一区二区不卡，但是該論文第一次提供了這類信息素組成的實驗證據(jù)欧美性爱视频吧，也為以后的同類研究提供了參考方法。

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.

在這篇文章中欧美性爱视频亚州，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黄色一级免费播放网站，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&www精品。

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.

在這篇文章中超碰插，研究人員選取全世界最為普遍的籠養(yǎng)鳥和模式實驗鳥－虎皮鸚鵡作為實驗對象，利用傳統(tǒng)的雙向選擇和GC-MS分析方法男女免费视频一区二区三区，證明鳥類確實存在&性信息素的通訊&羞羞无遮掩免费视频在线观看。

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普遍的籠養(yǎng)鳥和模式實驗鳥－虎皮鸚鵡作為實驗對于象久久丝袜美腿国产精品，利用傳統(tǒng)的雙向選擇和GD-MS分析方法啊啊啊啊轻点肉，證明鳥類確實存在&性信息素的通信&。

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.

另外一方面欧美天天摸天天添人人喊，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效用人人操人日免，化學研究上也主要集中在對于尾脂腺排泄的蠟脂成分的分析上。