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《秦岭山区大鲵生境及繁育关键技术研究-秦岭山区大鲵生技术研究山区生境研究繁育生境》由会员上传分享，免费在线阅读，更多相关内容在工程资料-天天文库。
1、秦岭山大貌生境及繁育关键技术研究张红星1,王开锋1,刘婷婷2,方树淼-戴铭恒J杨文杰°,范维端S张东江2,李新平5,金耀林°(1.陕西省动物研究所，西安，710032：2陕西省渔业管理局，3陕西消水生物开发有限公司；4汉中市水产工作站；5四安M水务局，西安，710007：6勉县水利局水产站，陕西勉县，712420)摘要：文中叙述了秦岭大Andriasdavidanus繁冇基地的口然环境与仿生态池的给养条件；亲銳单池单养和同池隔网单养的培育方式；三年间连续催悄32组，自然交配产卵雌鋭27尾，共获卵14000粒，并连年孵化出苗。其中，产空卵带亲鋭5尾，催繁成功
2、率为84.4%。论述了亲鋭耐受低温，早春低水温沁开食：个性凶残；每年7月下句至8月底性腺发冇成熟为最佳催情期；交配产卵池耍彻底淸池，严控给水流量与水深；以及亲娩繁殖与护卵行为等系列要素。展望了大鋭规模化养殖的前景。关键词：大鳗生境繁育OntheHabitatandKeyReproductiveTechnologyofGiantSalamander(Andriasdavidianus)inQinlingMountainsFANGShu-miao1'4,FANWei-duan',ZHANGIlong-xing1,WANGKai-feng1,QUANQing-z
3、huan,LIXin-ping(1.ShaanxiInstituteofZoology,Xi'an,Shaanxi710032,China;2.AquaticworkingstationofXi9anCity,Xi'anShaanxi710054,China3.AquaticBureauofXi9anCity,Xi'an,Shaanxi710007fChina)Abstract:Inthepaper,thesewerenarratedinthenorthernfootofQinlingMountainsthattheentironmentofbreedin
4、gbase,theprovisionsoftheecology-imitatedpondandthebreedingmannerofonesalamanderinonepondanddoubleinonepondwithanetseparatingthem・Inthreeyears,32parentgroupsofsalamanderhadbeenexpeditedbyoxytociccontinuously,andnaturally27femaleparentsmatedwiththeircounterparts,laying14000eggs・Annu
5、allyseedlingshadbeenincubatedinthepastthreeyears・Ofthefemale,5parentslayegg-stripswithnoegg,andtherateoftheparturition-hastenedis84.4%.Andatlast,thosewerediscussedthatthetoleranceofGiantSalamandertolowtemperature(inearlyspring,theparentsbegintoeatatthetemperatureover4°C),thefierce
6、andcruelnature,andthepropagationandthebehaviorofegg-protected.FromthepracticeofbreedingGiantSalamander、suchexperienceswereobtainedthatthetimefromthelastten-dayofJulytotheendofAugustisthebestperiodtoexpeditetheparentsdelivery,thatthepondinwhichtheparentsmateandlayeggsmustbeclearede
7、veryinch,thatthequantityoffeedwatertothepondandthewaterdepthofthepondmustbecommanded,andetc..Keywords:ChineseGiantSalamander(Andriasdavidanus)}breed;propagate一、立项背景及意义中国大Andriasdavidianus(Blarchand)是我国特有的珍稀两栖类动物，俗称“娃娃鱼”，距今已有三亿五千万年演化史，是极其珍贵的“活化石”；属水生脊椎动物向陆生动物过渡的生物类群，口对水环境的依赖性非常强，迁徙
8、能力较差，是研究动物进化的极好材料，具有极秦岭山大貌生境及繁育关键
