中华鲟人工繁育
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重大突破!业内首次实现,就在宜昌
Huan Qiu Wang Zi Xun· 2025-11-27 08:35
来源:三峡日报 近日 随着11.2万尾鱼苗陆续破膜而出 首批全人工繁殖的 子三代中华鲟 在三峡集团 长江珍稀鱼类保育中心诞生 这是业内首次实现 子三代中华鲟全人工繁殖 标志着今后可不依靠野生亲鱼 即可实现中华鲟持续保种和规模化繁育 子三代中华鲟鱼卵正在出苗。图片由三峡集团提供 据介绍,此次参与繁殖的"功勋父母"为该中心自主培育的子二代中华鲟,其中雌鱼13龄、雄鱼14龄。为 确保繁育质量,科研团队早在年初便对亲鱼进行了严格筛选,经过长达数月的营养强化与环境模拟调 控,精准捕捉"黄金繁殖窗口",于11月6日、7日对发育成熟的雄、雌亲鱼实施人工催产。该批鱼卵人工 授精结果理想,受精率高达95%以上,经过5天孵化,获得子三代幼苗11.2万尾。 "子三代的诞生,证实了子二代中华鲟完全具备在人工环境下成熟并繁育后代的能力。"长江生物多样性 研究中心副主任、中华鲟研究所总工程师姜伟表示,未来,保有量更大的子二代中华鲟将接替子一代, 成为繁育主力。人工种群建设将进一步打破"产能"瓶颈,进入"可持续、规模化繁育"的新阶段。 科研人员在观察子三代中华鲟鱼卵发育情况。图片由三峡集团提供 针对外界关切的"中华鲟在人工环境里是否长得好 ...
三峡集团:首批子三代中华鲟诞生
Zhong Guo Xin Wen Wang· 2025-11-26 23:37
Core Viewpoint - The first batch of fully artificially bred third-generation Chinese sturgeons has been successfully born at the Yangtze Rare Fish Conservation Center of the Three Gorges Group, marking a significant milestone in the sustainable breeding and conservation of this species [1][2]. Group 1: Breeding Achievement - The first fully artificial breeding of third-generation Chinese sturgeons is a pioneering achievement in the industry, indicating that future conservation efforts can rely on artificial breeding without dependence on wild parent fish [1]. - The parent fish involved in this breeding were second-generation Chinese sturgeons, with the female being 13 years old and the male 14 years old [1]. - The breeding process involved strict selection and preparation of the parent fish, leading to a fertilization rate exceeding 95% and resulting in 112,000 third-generation fry after five days of incubation [1]. Group 2: Future Implications - The successful birth of third-generation sturgeons confirms that second-generation Chinese sturgeons can mature and reproduce in artificial environments, paving the way for larger populations to take over as the main breeding stock [1]. - The establishment of a breeding technology system for Chinese sturgeons aims to overcome production capacity bottlenecks, entering a new phase of sustainable and large-scale breeding [1][2].