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翻訳と辞書　辞書検索 [ 開発暫定版 ] スポンサード リンク Porcine zona pellucida ： ウィキペディア英語版 Porcine zona pellucida Porcine zona pellucida is a form of zona pellucida extracted from the ovaries of pigs, often referred to by the initials PZP. It is a popular source of antigens for immunocontraception.〔http://pzpinfo.org Wildlife forever 〕 The zona pellucida is a thick membrane that surrounds the unfertilized eggs of mammals. In order for an egg to be fertilized, sperm must first bind to, and then penetrate the zona pellucida. When porcine (pig) zona pellucida is injected into other mammals, antibodies are produced which attach to that animal's zona pellucida, preventing the sperm from attaching to the egg, therefore preventing fertilization. Porcine zona pellucida has been used in wildlife contraception since the late 1980s. Animals with which PZP has been employed in this context include elephants, feral horses,〔http://www.fort.usgs.gov/wildhorsepopulations/contraception.asp〕 elk and whitetailed deer. ==References== 抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』 ■ウィキペディアで「Porcine zona pellucida」の詳細全文を読む スポンサード リンク 翻訳と辞書 : 翻訳のためのインターネットリソース Copyright(C) kotoba.ne.jp 1997-2016. All Rights Reserved.