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《Fisheries Science》 2008-11
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Effect of A3α Peptidoglycan on Acid Phosphatase and Alkaline Phosphatase Activities in Larval White Leg Shrimp Litopenaeus vannamei

CHEN Guo-fu1,ZHANG Chun-yun1,WANG Guang-yu1,XU Zhong1,SONG Xiao-ling2,HUANG Jie2 1.Harbin University of Technology(Weihai),Ocean Colege Weihai 264209,China;2.Yellow Sea Fisheries Research Institute,Chinese Academy of Fishery Sciences,Qingdao 266071,China)  
Larval white leg shrimp Litopenaeus vannamei were fed steamed egg custard with 0.005%,0.01% and 0.1% peptidoglycan(PG),and immersed in the seawater containing 0.005,0.01 and 0.05 mg/ml PG,and fed live food as control group.Acid phosphatase(ACP) and alkaline phosphatase(ALP) activities were tested after postlarvae(PL_1) were fed for 7 days.The activities of ACP and ALP were much higher in the postlarvae with oral administration and immersion than those in the control.There were much higher ACP and ALP activities in the larvae fed the live food,higher ACP activity in the larvae fed the food containing 0.01% PG and immersed in the seawater containing 0.05 mg/ml PG,higher ALP activity in the larvae fed the diet containing 0.01% and 0.1%PG and immersed in the seawater containing 0.01 mg/ml and 0.05 mg/ml PG higher than in the control larvae.For oral and immersion groups,the ACP activity was positively related to PG concentrations.The highest ALP activity was observed in the larvae fed the diet containing medium concentration of PG for the orally administrated groups.The ALP activity was positively related to the concentration of PG.An optimum concentration of 0.05%~0.1% for oral administration and 0.05 mg/ml for immersion were recommended in larvae culture.
【Fund】: 哈尔滨工业大学(威海)研究基金资助项目(HIT(WH)07);; 哈尔滨工业大学科研创新基金组织资助项目(IM0Q29080006)
【CateGory Index】: S917.4
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