详细信息
Effect of various Na/K ratios in low-salinity well water on growth performance and physiological response of Pacific white shrimp Litopenaeus vannamei 被引量:3
Effect of various Na/K ratios in low-salinity well water on growth performance and physiological response of Pacific white shrimp Litopenaeus vannamei
文献类型:期刊文献
中文题名:Effect of various Na/K ratios in low-salinity well water on growth performance and physiological response of Pacific white shrimp Litopenaeus vannamei
英文题名:Effect of various Na/K ratios in low-salinity well water on growth performance and physiological response of Pacific white shrimp Litopenaeus vannamei
作者:刘泓宇[1];谭北平[1];杨金芳[1];林颖博[2];迟淑艳[1];董晓慧[1];杨奇慧[1]
机构:[1]Laboratory of Aquatic Animal Nutrition and Feed,Fisheries College,Guangdong Ocean University;[2]Department of Oncology and Pathology,Cancer Center Karolinska,R8:04,Karolinska Hospital
年份:2014
卷号:32
期号:5
起止页码:991
中文期刊名:Chinese Journal of Oceanology and Limnology
外文期刊名:中国海洋湖沼学报(英文版)
收录:CSTPCD、、Scopus、CSCD、CSCD2013_2014
基金:Supported by the National Natural Science Foundation of China (Nos. 30871928, 31272673), the Special Fund for Agro-Scientific Research of Public Interest (No. 201003020), and the High Level Talent Project of Guangdong Province Universities and Colleges Pearl River Scholar (GDUPS) (No. 2011)
语种:中文
中文关键词:Litopenaeus vannamei; low-salinity well water; Na/K ratio; osmoregulation; nitrogen metabolism;immunity
外文关键词:太平洋白对虾;低盐度水;南美白对虾;氯化钾;生理反应;生长性能;比值;钠
中文摘要:To investigate the influence of sodium to potassium (Na/IO ratios on the growth performance and physiological response of the Pacific white shrimp (Litopenaeus vananmei), various concentrations of KC1 were added to low-salinity well water (salinity 4) in an 8-week culture trial. Six treatments with NWK ratios of 60:1, 42:1, 33:1, 23:1, 17:1, and 14:1 were replicated in triplicate. The highest weight-gain rate (3 506±48)% and survival rate (89.38±0.88)% was observed in well water with Na/K ratios of 23:1 and 42:1, respectively, while the feed conversion ratio (1.02~0.01), oxygen consumption, and ammonia-N excretion rate was the lowest in the medium with a Na/K ratio of 23:1. Gill Na+-K+-ATPase activity, as an indicator of osmoregulation, peaked in the treatment where the Na/K ratio was 17:1. The total hemocyte count, respiratory burst, and immune-related enzyme activities (ALP, LSZ, PO, and SOD) ofL. vananmei were affected significantly by Na/K ratios (P〈0.05). After challenged with Vibrio harveyi, the cumulative mortality of shrimp reared in a Na/K ratio of 23:1 (30±14.14)% was significantly lower than the control (75~7.07)%. In conclusion, the addition of K+ to low-salinity well water in L. vannamei cultures is feasible. Na/K ratios ranging from 23:1 to 33:1 might improve survival and growth. Immunity and disease resistance are also closely related to the Na/K ratio of the low-salinity well water. The findings may contribute to the development of more efficient K^+ remediation strategies for L. vananmei culture in low-salinity well water.
外文摘要:To investigate the influence of sodium to potassium(Na/K) ratios on the growth performance and physiological response of the Pacific white shrimp( Litopenaeus vananmei), various concentrations of KCl were added to low-salinity well water(salinity 4) in an 8-week culture trial. Six treatments with Na/K ratios of 60:1, 42:1, 33:1, 23:1, 17:1, and 14:1 were replicated in triplicate. The highest weight-gain rate(3 506±48)% and survival rate(89.38±0.88)% was observed in well water with Na/K ratios of 23:1 and 42:1, respectively, while the feed conversion ratio(1.02±0.01), oxygen consumption, and ammonia-N excretion rate was the lowest in the medium with a Na/K ratio of 23:1. Gill Na +-K +-ATPase activity, as an indicator of osmoregulation, peaked in the treatment where the Na/K ratio was 17:1. The total hemocyte count, respiratory burst, and immune-related enzyme activities(ALP, LSZ, PO, and SOD) of L. vananmei were affected significantly by Na/K ratios( P <0.05). After challenged with Vibrio harveyi, the cumulative mortality of shrimp reared in a Na/K ratio of 23:1(30±14.14)% was significantly lower than the control(75±7.07)%. In conclusion, the addition of K + to low-salinity well water in L. vannamei cultures is feasible. Na/K ratios ranging from 23:1 to 33:1 might improve survival and growth. Immunity and disease resistance are also closely related to the Na/K ratio of the low-salinity well water. The findings may contribute to the development of more efficient K + remediation strategies for L. vananmei culture in low-salinity well water.
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