母mu鴨ya體ti內nei左zuo側ce有you一yi個ge發fa達da的de卵luan巢chao，其qi功gong能neng是shi排pai卵luan造zao蛋dan，在zai右you側ce還hai有you一yi個ge很hen不bu發fa達da的de雄xiong性xing腺xian。如ru果guo鴨ya群qun中zhong有you適shi量liang的de公gong鴨ya，則ze公gong鴨ya分fen泌mi的de雄xiong性xing荷he爾er蒙meng會hui抑yi製zhi母mu鴨ya體ti內nei右you側ce雄xiong性xing腺xian的de發fa育yu，從cong而er誘you導dao母mu鴨ya卵luan巢chao多duo排pai卵luan、多產蛋。

dangyaqunzhongmeiyouhuoqueshaogongyashi，jiumeiyouzugoudexiongxingheermenglaiyizhimuyadezhezhongxingxianfayu。zaitedingdeqingkuangxia，gebieqiangjianmuyatineiyoucedexiongxingxianjiuhuifayuqilai，chanshengdaliangdexiongxingheermeng，fanguolaiyizhizuoceluanchaodezhengchanggongneng。yushigebiemuyabuzaishengdan，chengxianxingfanzhuanxianxiang，yumaozhujianbiandeguangyanpiaoliangqilai，kusigongya。

母鴨的性欲比雞
、鵝、鵪鶉、家(jia)鴿(ge)等(deng)禽(qin)類(lei)要(yao)亢(kang)進(jin)得(de)多(duo)，這(zhe)在(zai)有(you)公(gong)鴨(ya)的(de)鴨(ya)群(qun)中(zhong)表(biao)現(xian)得(de)比(bi)較(jiao)明(ming)顯(xian)。據(ju)觀(guan)察(cha)，母(mu)鴨(ya)在(zai)臨(lin)近(jin)開(kai)產(chan)時(shi)和(he)產(chan)蛋(dan)高(gao)峰(feng)期(qi)，常(chang)常(chang)三(san)五(wu)成(cheng)群(qun)尾(wei)隨(sui)公(gong)鴨(ya)，或(huo)靜(jing)浮(fu)水(shui)麵(mian)等(deng)候(hou)公(gong)鴨(ya)。無(wu)論(lun)是(shi)戲(xi)水(shui)還(hai)是(shi)覓(mi)食(shi)，公(gong)母(mu)混(hun)養(yang)的(de)鴨(ya)群(qun)都(dou)顯(xian)得(de)生(sheng)機(ji)勃(bo)勃(bo)、富有活力。