湖北农业科学 ›› 2026, Vol. 65 ›› Issue (3): 78-83.doi: 10.14088/j.cnki.issn0439-8114.2026.03.012

• 资源·环境 • 上一篇    下一篇

水雍菜浮床覆盖率对罗非鱼生长状况及养殖水质的影响

黄祎宁, 林倩倩, 朱心妍, 申旭红   

  1. 中国农业大学烟台研究院,山东 烟台 264670
  • 收稿日期:2025-09-26 出版日期:2026-03-25 发布日期:2026-04-09
  • 通讯作者: 申旭红(1980-),女,副教授,博士,主要从事水产动物营养与水体生态保护研究,(电子信箱)xhshen@cau.edu.cn。
  • 作者简介:黄祎宁(2004-),女,辽宁鞍山人,在读本科生,专业方向为水产养殖学,(电子信箱)cauhyn@cau.edu.cn。
  • 基金资助:
    中国农业大学烟台研究院校内引导性基金项目(Z202303); 中国农业大学烟台研究院URP资助项目(U2023045)

Effects of Ipomoea aquatica floating bed coverage ratios on growth status and aquaculture water quality of Oreochromis niloticus

HUANG Yi-ning, LIN Qian-qian, ZHU Xin-yan, SHEN Xu-hong   

  1. Yantai Institute, China Agricultural University, Yantai 264670, Shandong, China
  • Received:2025-09-26 Published:2026-03-25 Online:2026-04-09

摘要: 为深入探究水雍菜(Ipomoea aquatica)浮床覆盖率对罗非鱼(Oreochromis niloticus) 养殖系统水质的影响,设置水雍菜生物浮床覆盖率分别为20%(C2组)、30%(C3组)、40%(C4组)的试验组以及未设浮床覆盖的对照组(C0组),并采用饱食投喂法投喂罗非鱼。自试验起始,每7 d采集1次水样用于检测水质,具体检测指标包括养殖水体的溶解氧(DO)、总氨氮(TAN)、亚硝酸盐氮(NO2--N)和硝酸盐氮(NO3--N)浓度,在35 d试验结束时检测罗非鱼体长、体质量等生长指标。结果显示,C2组、C3组、C4组的水质指标和生长指标均优于C0组;C4组的TAN浓度显著低于其他处理组(P<0.05),NO2--N和NO3--N浓度也最低,且罗非鱼各项生长指标均优于其他处理组;各处理组间DO浓度无显著差异(P>0.05)。综合来看,有水雍菜覆盖的罗非鱼养殖系统的水质净化效果优于传统养殖;当浮床覆盖率为40%时,该鱼菜共生系统的水质净化效果和鱼类生长指标均达到最佳。

关键词: 罗非鱼(Oreochromis niloticus), 水雍菜(Ipomoea aquatica), 浮床覆盖率, 水质, 饱食投喂, 生长状况

Abstract: In order to further explore the effect of floating bed coverage of Ipomoea aquatica on the water quality of Oreochromis niloticus aquaculture system, the experimental groups with 20% (C2 group), 30% (C3 group), 40% (C4 group) of floating bed coverage of I. aquatica and the control group without floating bed coverage (C0 group) were set up, and O. niloticus was fed by the satiation feeding method. Since the beginning of the experiment, water samples were collected every 7 days to detect the water quality. The specific detection indexes included the concentration of dissolved oxygen (DO), total ammonia nitrogen (TAN), nitrite nitrogen (NO2--N) and nitrate nitrogen (NO3--N) in the aquaculture water. At the end of the 35 d experiment, the growth indexes such as body length and body weight of O. niloticus were detected. The results showed that the water quality indexes and growth indexes of C2 group, C3 group and C4 group were better than those of C0 group. The TAN concentration of C4 group was significantly lower than that in other treatment groups (P<0.05), and the NO2--N and NO3--N concentrations were also the lowest. Additionally, all growth indicators of O. niloticus in the C4 group were superior to those in the other treatment groups. There were no significant differences in DO concentrations among the treatment groups (P>0.05). On the whole, the water purification effect of O. niloticus aquaculture system covered with I. aquaticawas better than that of traditional aquaculture. When the floating bed coverage was 40%, the water purification effect and fish growth indexes of the fish-vegetable symbiotic system were the best.

Key words: Oreochromis niloticus, Ipomoea aquatica, floating bed coverage ratio, water quality, feeding to satiation, growth status

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