石斑鱼工厂化养殖中溶解氧调控技术及其对生长的影响

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中图分类号：S965 文献标志码：A 文章编号：1004—6755（2026）02—0012—03

Effect of dissolved oxygen on growth of Epinephelus in factory culture

YAN Xin

（Marine and FisheriesResearch Institute，Rizhao，Shandong，Rizhao 2768oo，China）

Abstract：To investigate the precise regulation technology of dissolved oxygen in factory一scale Epinephelus farming and its effects on growth and immunity，providing support for high一density and eficient farming. A multi一gradient disolved oxygen experimental platform was established，with brown Epinephelus as the study subject，divided into four groups：low oxygen，medium oxygen， high oxygen，and fluctuating oxygen.A synergistic scheme combining micro/nano一aeration and pure oxygen supplementation was adopted，combined with intelligent sensing for dynamic regulation，to monitor growth and serum biochemical indicators. The results show： Under a high dissolved oxygen environment of approximately 6.0mg/L ， the growth rate， feed utilization efficiency，and immune enzyme activityof the Epinephelus were optimal. The survival rate of the fluctuating oxygen group was outstanding，and this synergistic regulation scheme achieved a balance between oxygen utilization efficiency and energy consumption. The conclusion reveals：Epinephelus farming requires maintaining a stable dissolved oxygen level of （6.0±0.2）mg/L ， supplemented by moderate and controllable fluctuations，and adopting an intelligent dynamic control strategy to enhance farming efficiency and sustainability.

Key words：Epinephelus; industrial aquaculture; dissolved oxygen; growth performance

石斑鱼（Epinephelus）属鲈形目（Perci-formes），鲈亚目（Percoidei），鮨科（Serranidae），主要生活在热带和亚热带的海域，其肉质细腻，并具独特的风味。（剩余3441字）