摘要
为探讨一种赖氨酸芽孢杆菌对凡纳滨对虾生长、存活和养殖水质的影响。设1个试验组和1个对照组,每组3个平行,125尾对虾/桶,初始体质量(5.18±0.13)g、体长(9.40±0.18)cm、水温(26±2)℃、盐度30、试验时间10 d。试验组定期添加浓度为0.463×10^(9) CFU/mL的赖氨酸芽孢杆菌菌液,试验组和对照组NH_(4)^(+)-N质量浓度变化范围分别为(0.05±0.01)~(5.51±0.09)mg/L、(0.05±0.01)~(6.07±0.22)mg/L。NO_(2)^(-)-N质量浓度变化范围分别为(0.07±0.01)~(0.13±0.01)mg/L、(0.07±0.01)~(0.19±0.01)mg/L。NO_(3)^(-)-N质量浓度变化范围分别为(0.07±0.01)~(0.81±0.07)mg/L、(0.07±0.01)~(1.26±0.07)mg/L。pH的变化范围分别为(7.10±0.01)~(7.74±0.01)、(7.03±0.01)~(7.74±0.01)。结果显示:赖氨酸芽孢杆菌对养殖水体中的NH_(4)^(+)-N、NO_(2)^(-)-N和NO_(3)^(-)-N的控制及pH调控具有极显著效果(P<0.01);试验组和对照组终末体质量分别为(7.01±0.38)g、(6.78±0.23)g终末体长分别为(9.67±0.08)cm、(9.63±0.04)cm,试验组相比于对照组有明显的提高但两者不存在显著性差异(P>0.05);试验组存活率(77.07%±1.22%)显著高于对照组(71.73%±2.81%)具有显著效果(P<0.05)。研究表明,赖氨酸芽孢杆菌有助于促进凡纳滨对虾生长、存活和水质调控。
Taking Litopenaeus vannamei as the research object,the effects of a Lysinibacillus strain on the growth,survival,and aquaculture water quality of L.vannamei were investigated.One experimental group and one control group were set up,with three parallels in each group,125 shrimps/barrels,initial body mass(5.18±0.13)g,body length(9.40±0.18)cm,water temperature(26±2)℃,salinity 30,and experimental time 10 d.The experimental group was continuously added with Lysinibacillus at a concentration of 0.463×10^(9 )CFU/mL,The concentrations of NH_(4)^(+)-N in test group and control group were(0.05±0.01)-(5.51±0.09)mg/L and(0.05±0.01)-(6.07±0.22)mg/L.The variation ranges of NO_(2)^(-)-N concentration were(0.07±0.01)-(0.13±0.01)mg/L and(0.07±0.01)-(0.19±0.01)mg/L.The variation ranges of NO_(3)^(-)-N concentration were(0.07±0.01)-(0.81±0.07)mg/L and(0.07±0.01)-(1.26±0.07)mg/L.The range of pH was(7.10±0.01)-(7.74±0.01)and(7.03±0.01)-(7.74±0.01)respectively.Lysinibacillus had significant effects on the control of NH_(4)^(+)-N,NO_(2)^(-)-N,and NO_(3)^(-)-N in aquaculture water and pH regulation(P<0.01).The final body mass was(7.01±0.38)g,(6.78±0.23)g,and the final body length was(9.67±0.08)cm,(9.63±0.04)cm.The experimental group was significantly improved compared with the control group,but there was no significant difference between the two groups(P>0.05).The survival rate of the experimental group(77.07%±1.22%)was significantly higher than that of the control group(71.73%±2.81%)(P<0.05).The results showed that Lysinibacillus was helpful to promote the growth,survival,and water quality control of L.vannamei.
作者
管立平
谢晶晶
李伟豪
陈昊震
温振中
孙成波
GUAN Liping;XIE Jingjing;LI Weihao;CHEN Haozhen;WEN Zhenzhong;SUN Chengbo(College of Fisheries,Guangdong Ocean University,Zhanjiang 524088,Guangdong,China;Southern Ocean Science and Engineering of Guangdong Laboratory(Zhanjiang),Zhanjiang 524025,Guangdong,China;Guangdong Provincial Key Laboratory of Pathogenic Biology and Epidemiology of Aquatic Economic Animals,Zhanjiang 524088,Guangdong,China)
出处
《渔业现代化》
CSCD
2022年第6期77-83,共7页
Fishery Modernization
基金
广东省重点领域研发计划项目(对接国家重大项目)“海水池塘生态工程化养殖技术与模式(2020B0202010009)”
冲一流省财政专项资金“南海经济虾类育种和养殖实验室(231419025)”。
