吊养牡蛎对南美白对虾养殖水环境及存活与生长的影响  

Effects of Hanging Oysters on Aquaculture Environment,Survival and Growth of Litopenaeus vannamei

作　　者：吕富 谭海军 陶春松 LÜFu;TAN Haijun;TAO Chunsong(College of Marine and Biological Engineering,Yancheng Institute of Technology,Yancheng Jiangsu 224051,China;Yancheng Fengyueyuan Fishing Bait Co.,Ltd.,Yancheng Jiangsu 224300,China;Jiangsu Xiaofeng Agricultural Science Technology Group Co.,Ltd.,Yancheng Jiangsu 224300,China;Sheyang County First Freshwater Farm Co.,Ltd.,Yancheng Jiangsu 224300,China)

机构地区：[1]盐城工学院海洋与生物工程学院,江苏盐城224051 [2]盐城丰悦源钓饵有限公司,江苏盐城224300 [3]江苏孝丰农业科技集团有限公司,江苏盐城224300 [4]射阳县第一淡水养殖场有限公司,江苏盐城224300

出　　处：《盐城工学院学报（自然科学版）》2023年第4期8-11,23,共5页Journal of Yancheng Institute of Technology:Natural Science Edition

基　　金：2022年度盐城高质量渔业发展研究课题(YCSCYJ2021003)。

摘　　要：为研究吊养牡蛎对南美白对虾工厂化生物絮团养殖水环境及对虾存活与生长的影响,在对虾放养密度均为600尾/m^(3)的养殖桶中分别按照0、25、50、75、100和125只/m^(3)的密度吊养太平洋牡蛎,每个吊养密度设3个重复,连续饲养90 d,每10 d测定一次水体生物絮团水体总悬浮物(TSS)、总氨氮(TAN)、亚硝酸盐氮(NO_(2)^(-)N)和硝酸盐氮(NO_(3)^(-)N),饲养结束后计数各桶存活的对虾并计算存活率,同时测定对虾体重。结果表明:50~125只/m^(3)的牡蛎吊养密度可将TSS控制在最有利于南美白对虾养殖的600 mg/L以下,牡蛎吊养密度50~75只/m^(3)能有效降低养殖水体中的TAN、NO_(2)^(-)-N、NO_(3)^(-)-N含量,且对虾的存活率显著高于其他各组,50~125只/m^(3)试验组的对虾体重无显著差异,但显著高于0和25只/m^(3)的试验组。In order to study the effects of hanging oysters on the aquatic environment of factory biofloc culture of Litopenaeus van⁃namei and the survival and growth of L.vannamei,Pacific oysters were raised in breeding barrels(all with a stocking density of 600 shrimp/m^(3))at a density of 0,25,50,75,100 and 125 oysters/m^(3),respectively.Three replicates were set for each hanging density,and the prawns were continuously fed for 90 days.The contents of total suspended solids(TSS),total ammonia nitrogen(TAN),nitrite nitrogen(NO_(2)^(-)N)and nitrate nitrogen(NO_(3)^(-)N)were measured every 10 days.After the feeding experiment,the number of prawns alive in each bucket was counted and the survival rate was calculated.Meanwhile,the weight of prawns were measured.The results showed that the TSS could be controlled below 600 mg/L at the density of 50~125 oysters/m^(3),which is most beneficial to the culture of L.vannamei.The concentration of 50 to 75 oysters/m^(3)can effectively reduce the contents of TAN,NO_(2)^(-)-N and NO_(3)^(-)-N in aquaculture water.In addition,the survival rate of prawn in the test group with a density of 50~75 oysters/m^(3)was significantly higher than that in other groups.There was no significant difference in body weight of prawn in 50~125 oysters/m^(3)groups,but it was significantly higher than that in 0 and 25 oysters/m^(3)groups.

关 键 词：南美白对虾 牡蛎 养殖水环境 

分 类 号：S968.22[农业科学—水产养殖]