蛋白质与饱食度对工厂化养殖半滑舌鳎 |
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作者姓名: | 王美琴 李勇 车向荣 王华 夏苏东 孙国祥 |
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作者单位: | 1. 山西农业大学动物科技学院,太谷,030801 2. 中国科学院海洋研究所,青岛,266071 |
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基金项目: | 国家高技术研究发展计划重点项目 |
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摘 要: | 在封闭循环水养殖条件下,进行5×3双因素随机设计动物试验,即5种饲料蛋白质水平(43%、46%、49%、52%和56%;以A—E组表示)和3种饲喂饱食度水平(100%、90%和80%;以I、Ⅱ和Ⅲ水平表示),共15个处理,每处理3重复,试验期108d。探寻蛋白质营养与饱食度对工厂化养殖半滑舌鳎幼鱼(110±25g)生长与免疫的影响。结果表明,(1)高蛋白水平与高饱食度投喂的增重效果最佳,E组增重率极显著高于其他组13.75%~50.16%,工水平比Ⅱ和Ⅲ水平分别极显著提高7.57%和14.08%;中蛋白水平蛋白效率较高而死亡率最低,C组死亡率比其他组降低50%~759/6;低饱食度的饲料利用率和蛋白质效率最高,Ⅲ水平比I、Ⅱ水平分别显著高4.78%和5.32%。(2)中蛋白水平和高饱食度有利于提高超氧化物歧化酶(SOD)活力,C组比其他组显著提高4.2%~34.79%,I水平分别比Ⅱ和Ⅲ水平极显著高15.27%和25.70%;中蛋白水平和90%饱食度有利于提高溶茵酶(LZM)活力,C组比其他组极显著提高4.61%~18.07%,Ⅱ水平比工和Ⅲ水平分别极显著高12.03%和4.58%;中高蛋白水平和高饱食度有利于提高补体C3和C4活力。(3)获得工厂化养殖半滑舌鳎幼鱼最大生长的饲料蛋白质水平为56%;最佳免疫力和蛋白效率的饲料蛋白质水平为499/5~52%。
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关 键 词: | 半滑舌鳎 蛋白水平 饱食度 生长性能 免疫力 |
收稿时间: | 2009/3/21 0:00:00 |
修稿时间: | 2009/5/16 0:00:00 |
Effects of protein and satiation degrees on growth and immunity of Cynoglossus semilaevis Günther in industrial culture |
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Authors: | WANG Mei-qin LI Yong CHE Xiang-rong WANG Hua XIA Su-dong SUN Guo-xiang |
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Institution: | 1 Animal Science Technology Academy;Shanxi Agricultural University;Taigu 030801;2 Institute of Oceanology;Chinese Academy of Sciences;Qingdao 266071 |
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Abstract: | The 5×3 two-factor random animal experiment was conducted for 108 days to determine the effects of protein levels and satiation degrees on growth performance and immuni- ty activity of juvenile Cynoglossus semilaevis Gtinther (with average initial weight of 110±25g) in the industrial culture condition with closed recirculation seawater. The trial fish were ran- domly allocated into 15 triplicated treatments,with five diets at protein levels of 43%, 46%, 49 %, 52 %, 56 % (A-E groups) and three satiation degrees of feeding( 100 %, 90 % and 80 %, as Ⅰ和Ⅱ and Ⅲ degree). The results indicated that: (1)the best weight gain were found in both the highest protein level and the highest satiation degree. Weight gain ratio in group E was signifi- cantly higher than the other groups (13.75%-50.16%),and that of degree Ⅰ was significant higher than degree II and Ill (7.57% and 14. 08%), respectively; higher protein efficiency ratio and the minimum mortality appeared in the intermediate protein level , mortality ratio of group C was lower than the others (50 % - 75 %) the highest feed conversion ratio and protein efficien- cy ratio were present in the lowest satiation degree, for which degree Ⅲ was higher than the oth- ers (4.78% and 5.32%), respectively. (2) the intermediate protein level and the highest satia- tion degree were stimulative to enhancing SOD activity, group C was significantly higher than the other groups (4.2% - 34.79%) degree I was significant higher than degree Ⅱ and 111 (15.27% and 25.70%), respectively; the intermediate protein level and 90% satiation were good for promoting LZM activity, group C was significant higher than the other groups (4.61 4%-8.07%), degree Ⅱ was significant higher than degree I and m (12.03% and 4.58%), re- spectively; the intermediate and higher protein level and the highest satiation degree were stim- ulative to enhancing complement C3, C4 activity; (3) the protein level of feed for maximum growth of juven |
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Keywords: | Cynoglossus sernilaevis Giinther Protein levels Satiation degree Growth performance Immunity activity |
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