渔业现代化2025，Vol.52Issue(6)：48-54,7.DOI:10.26958/j.cnki.1007-9580.2025.06.006
不同季节凡纳滨对虾工程化养殖池塘水质、对虾生长和经济效益分析
Analysis of water quality,growth,and economic benefits in engineered farming ponds of Litopenaeus vannamei across different seasons
摘要
Abstract
This study investigated the differences in water quality,shrimp growth,and economic benefits of engineered ponds for Litopenaeus vannamei across the spring,summer,and winter seasons.Shrimp farming experiments were conducted in a greenhouse during the spring and winter and outdoors during the summer of 2023-2024.Water quality parameters,such as pH,transparency,dissolved oxygen(DO),water temperature(WT),nitrite nitrogen(NO2--N),ammonia nitrogen(TAN),total nitrogen(TN),and chemical oxygen demand(COD),were regularly monitored,as were changes in shrimp body weight.We analyzed the relationship between these parameters and the time of cultivation,as well as the seasonal differences.Finally,we assessed the total yield of the shrimp and the economic benefits.The results showed that:NO2--N,TAN,TN,and COD levels accumulated and increased with extended farming duration.Key water quality indicators exhibited significant seasonal differences.Summer WT,DO,TN,and COD levels were significantly higher than in spring and winter(P<0.05).Spring and winter NO2--N levels were significantly higher than in summer(P<0.05).Winter TAN levels were significantly higher than in spring and summer(P<0.05).Summer pond water transparency was lowest(P<0.05).The shrimp growth rate was significantly faster in summer breeding than in spring and winter greenhouses.In spring greenhouses,shrimp growth was slower than in winter during the early stage(less than 60 days),but it significantly surpassed winter growth during the later stage(more than 70 days)(P<0.05).The relationship between body weight(W)and days(d)for Litopenaeus vannamei growth is as follows:spring:w=0.000 5×d2.311 1(R2=0.944 5);summer:W=0.000 6×d2.440 2(R2=0.985 3);winter:W=0.002 2×d1.969 7(R2=0.951 1).The winter greenhouse model achieved the highest production yield and Cost Profit Margin,significantly outperforming the spring greenhouse and summer open-air farming models(P<0.05):winter greenhouse(103%),spring greenhouse(84%),and summer farming(83%).The research indicates that engineered farming of Litopenaeus vannamei offers stable water quality,high yields,and good economic returns.Among the different seasonal engineered farming models(greenhouse and open-air)for Litopenaeus vannamei,the winter greenhouse model is the most profitable.关键词
凡纳滨对虾/工程化养殖/水质/生长/经济效益Key words
Litopenaeus vannamei/engineered farming/water quality/growth/economic benefits分类
农业科技引用本文复制引用
李金鑫,黄永春,许金震,俞韩绣,林祥日..不同季节凡纳滨对虾工程化养殖池塘水质、对虾生长和经济效益分析[J].渔业现代化,2025,52(6):48-54,7.基金项目
福建省高校产学合作项目(2023N5007) （2023N5007）
福建省科技特派员后补助项目(2021S2001) （2021S2001）
