| 盐度对杂交鳢幼鱼生长及血液免疫指标的影响 |
| Effect of Salinity on Growth and Some Blood Immune Indexes of the Juvenile Hybrid Snakehead |
| 投稿时间：2013-05-16 修订日期：2013-08-10 |
| DOI： |
| 中文关键词:盐度 杂交鳢 生长 免疫指标 |
| 英文关键词:salinity Hybrid snakehead growth Immune indexes |
| 基金项目:广东省部产学研结合项目（2011B090400270） |
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| 中文摘要: |
| 在３５ｄ的试验周期内，研究了不同盐度（２、４、６、８）对杂交鳢（斑鳢♀×乌鳢♂）幼鱼生长及血液红细胞数量（ＲＢＣ）、白细胞数量（ＷＢＣ）、溶菌酶（ＬＺＭ）含量、超氧化物歧化酶活性（ＳＯＤ）和过氧化氢酶（ＣＡＴ）活性等免疫因子的影响。结果显示，随着盐度的升高，杂交鳢增重率分别为６７．８１％、６８．２６％、７１．１４％、３２．９６％和１４．２６％，存活率分别为１００％、１００％、１００％、１００％和９３．３％。盐度２、４组增重率和对照组差异不显著，盐度６、８组增重率和对照组差异显著（Ｐ＜０．０５）。随着盐度的升高，血液红细胞数量呈下降的趋势，对照组和其他组差异显著（Ｐ＜０．０５），而白细胞数量先急剧上升后又恢复到对照组水平，盐度６组达到最高。血液中溶菌酶浓度随着盐度变化出现波动，盐度６组达到最高，且与对照组差异显著（Ｐ＜０．０５），盐度８组溶菌酶浓度有所回降，但仍显著高于对照组（Ｐ＜０．０５）。超氧化物歧化酶活性变化趋势与溶菌酶浓度变化趋势相似，各组超氧化物歧化酶活性均高于对照组且差异显著（Ｐ＜０．０５）。当盐度升至６时，超氧化物歧化酶活力升至最高。过氧化氢酶活性随着盐度的增加逐步升高，盐度８组达到最高，且各组与对照组差异显著（Ｐ＜０．０５）。 |
| 英文摘要: |
| The effect on growth rates，number of WBC，RBC，contents of LZM，activity of SOD and CAT of the juvenile Hybrid snakehead treated by different level of salinity ( 0 , 2 , 4 , 6 , 8)were determined in this study. The experiment lasted 35d. The results showed that，at different salinity，the growth rates of the five groups were67. 81%,68. 26%，71.14%，32. 96% and 14.26%，respectively; survival rates were 100%，100 %，100 %，100% and 93.3%，respectively. No significant differences on growth rate were observed between salinity treated group 2 , 4，and control group，while significant differences observed in group 6 and 8(P<0.05).The number of RBC kept on decreasing with increasing water salinity with a dramatical difference to the control group ( P<0. 05).The WBC first increased obviously with the increasing water salinity，then returned to the same level as the control group. The maximum level existed in Group 6 .The concentrations of the LZM were found to be fluctuated with the change of salinity and showed a maximum in group 6 with significant difference to the control group(P<0.05).The activity of SOD showed the similar change tendency as the contents of LZM .Significant difference was found between the control group and the treated groups(P<0.05).The activity of CAT increased with the increasing salinity and the maximum level was found in group 8. All the treated groups showed significant difference to the control group ( P<0.05).
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| 王超,谢少林,陈金涛,梁日深.2013.盐度对杂交鳢幼鱼生长及血液免疫指标的影响[J].水生态学杂志,34(6):81-85. |
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