抚仙金线鲃人工繁殖与鱼苗培育技术.PDF

动 物 学 研 究 2009，Aug. 30(4):463-467 CN 53-1040/Q ISSN 0254-5853 Zoological Research DOI ：10.3724/SP.J.1141.2009.04463 抚仙金线鲃人工繁殖与鱼苗培育技术 潘晓赋，刘淑伟，李再云，杨君兴* （中国科学院昆明动物研究所，云南昆明 650223 ） 摘要：抚仙金线鲃(Sinocyclocheilus tingi)是抚仙湖的特有种。2009 年3 －4 月，有4 次繁殖试验取得了成功。 先后试验了40 尾雌鱼和20 尾雄鱼，成功催产 19 尾雌鱼和 15 尾雄鱼，分别占雌雄鱼的47.5%和75.0% 。获得鱼 卵25 547 粒，并实施干法受精。有 16 810 粒受精，平均受精率为65.8% 。孵化出鱼苗约6 040 尾，平均孵化率为 23.6% 。经过20 日的饲养，仔鱼存活3 056 尾，存活率为50.6% 。抚仙金线鲃较低的催产率，可能是生殖功能紊 乱所致；但也不排除是人工营造的条件离其自然环境需求尚有距离。要使抚仙金线鲃成为鱼康鱼良白鱼(Anabarilius grahami)之后又一当地特色养殖鱼种，突破其人工繁殖瓶颈，培育高品质鱼苗是必由之路。突破其人工繁殖，还 可为研究抚仙金线鲃的生活史和保护该物种免于灭绝奠定良好基础。 关键词：抚仙金线鲃；人工繁殖；鱼苗培育；抚仙湖 中图分类号：Q959.468 ；S962 文献标识码：A 文章编号：0254-5853-(2009)04-0463-05 Artificial Propagation and Larvae Cultivation of Sinocyclocheilus tingi * PAN Xiao-fu, LIU Shu-wei, LI Zai-yun, YANG Jun-xing (Kunming Institute of Zoology, the Chinese Academy of Sciences, Kunming 650223, China) Abstract: The Fuxian golden line (Sinocyclocheilus tingi) is a famous fish endemic to Fuxian Lake. From March to April 2009, four breeding experiments were undertaken. 40 females and 20 males were injected with hormones. 19 females and 15 males bred successfully, accounting for 47.5% of females and 75.0% of males. A total of 25 547 eggs were obtained and subjected to dry-fertilization, with 16 810 eggs being fertilized with a 65.8% success rate. 6040 larvae were obtained with a 23.6% hatching rate. 3 056 larvae survived 20 days of cultivation with a 50.6% survival rate. Reproductive dysfunctions a