| 陆基圆池循环水条件下养殖密度对大口黑鲈生长及养殖效能的影响 |
| |
| 引用本文： | 介百飞,江林源,麻艳群,董升辉,司楠,程光平,程蔓,古昌辉.陆基圆池循环水条件下养殖密度对大口黑鲈生长及养殖效能的影响[J].水产科技情报,2022,49(5):272-277. |
| |
| 作者姓名： | 介百飞 江林源 麻艳群 董升辉 司楠 程光平 程蔓 古昌辉 |
| |
| 作者单位： | 广西壮族自治区水产技术推广站,广西南宁 530016;广西大学动物科学技术学院,广西南宁 530003;广西大学动物科学技术学院,广西南宁 530003;广西海洋研究所有限责任公司,广西北海 536000 |
| |
| 基金项目： | 2020年广西渔业健康养殖监管系统建设及渔稻综合种养模式技术集成项目“陆基圆池循环水养殖示范推广项目(鲈鱼)”； 2021年水产健康养殖、生态养殖和尾水生态治理技术集成与示范项目“陆基圆池养殖技术模式研究”；陆基圆池智能化养殖技术集成创新与示范推广(桂科AB21220019)。 |
| |
| 摘 要： | 为研究陆基圆池循环水养殖条件下大口黑鲈(Micropterus salmoides)适宜的养殖密度,设置55、65、75、85、95尾/m2等5种养殖密度(分别标记为A1、A2、A3、A4、A5组),进行了63 d的大口黑鲈养殖试验,通过测定和分析试验鱼的体质量日增长率、体长日增长率、饲料系数、体质量均匀度和单位面积产量等指标,评价不同养殖密度对大口黑鲈生长和主要养殖效能的影响。结果显示:(1)从次低密度的A2组(65尾/m2)至密度最高的A5组(95尾/m2),试验鱼的体长日增长率基本上随着养殖密度的提高而下降,最高的A2组比A3、A4和A5组分别高了31.6%、82.9%和92.3%,并且差异显著(P<0.05)；(2)从A2组至A5组,试验鱼的体质量日增长率和特定生长率均随着养殖密度的提高而下降；(3)A2组的饲料系数比A1、A3、A4和A5组分别降低了16.7%、28.6%、55.4%和56.9%；(4)单位面积产量和产品均匀度均在A2组达到最高。基于生长性能及养殖效能的综合评价,陆基圆池循环水养殖条件下大口黑鲈成鱼养殖阶段较适宜的养殖密度为65尾/m2。
|
| 关 键 词： | 陆基圆池 循环水养殖 大口黑鲈 养殖密度 |
| 收稿时间： | 2022/2/14 0:00:00 |
Effects of different densities on growth and aquaculture efficiency of largemouth bass(Micropterus salmoides) cultured in land-based recirculating aquaculture system |
| |
| JIE Baifei,JIANG Linyuan,MA Yanqun,DONG Shenghui,SI Nan,CHENG Guangping,CHENG Man,GU Changhui.Effects of different densities on growth and aquaculture efficiency of largemouth bass(Micropterus salmoides) cultured in land-based recirculating aquaculture system[J].Fisheries Science & Technology Information,2022,49(5):272-277. |
| |
| Authors: | JIE Baifei JIANG Linyuan MA Yanqun DONG Shenghui SI Nan CHENG Guangping CHENG Man GU Changhui |
| |
| Institution: | Guangxi Fisheries Technology Promotion Station,Nanning 530016,China;Guangxi University,Nanning 530003,China;Guangxi University,Nanning 530003,China;Guangxi Institute of Oceanology Co.,Ltd,Beihai 536000,China |
| |
| Abstract: | To study the optimal density of largemouth bass(Micropterus salmoides) under the condition of circulating water in land-based round tank,five densities of M. salmoides were cultured at 55 tails/m2(group A1),65 tails/m2(group A2),75 tails/m2(group A3),85 tails/m2(group A4) and 95 tails/m2(group A5).The weight gain rate(WGR),specific growth rate(SGR),length gain rate(LGR),feed conversion ratio(FCR),body weight evenness and yield were evaluated to investigate the effects of stocking densities on the growth and main culture efficiency of M. salmoides.The results showed:(1)The WGR,SGR and LGR significantly decreased with stocking density increasing from group A2 to group A5,and the WGR of A2 individuals was 31.6%,82.9% and 92.3% higher than A3,A4 and A5 groups,respectively(P<0.05).(2)FCR increased with stocking density increasing from group A2 to group A5,and the values of A2 individuals were 16.7%,28.6%,55.4% and 56.9% lower than that in groups A1,A3,A4 and A5,respectively.(3)At the absolute level of yield,when the breeding density was in the range of 65-85 tails/m2 ,the yield per unit area decreased with the increase of breeding density.Based on the comprehensive evaluation of growth performance and culture efficiency,the optimal stocking density of adult largemouth bass could be 65 tails/m2(group A2) under the condition of land-based recirculating aquaculture system. |
| |
| Keywords: | land-based round tank recirculating aquaculture largemouth bass stocking densities |
|
| 点击此处可从《水产科技情报》浏览原始摘要信息 |
| 点击此处可从《水产科技情报》下载免费的PDF全文 |
|
