渔业现代化2016，Vol.43Issue(2)：1-6,6.DOI:10.3969/j.issn.1007-9580.2016.02.001
投喂频率对点带石斑鱼生长和血浆抗氧化指标的影响
Effects of feeding frequency on the growth and plasma antioxidant indices of Epinephelus malabaricus
摘要
Abstract
In order to find out the optimal feeding frequency for factory farming Epinephelus sp, this experiment investigated the effects of feeding frequency on the growth and plasma antioxidant indices of Epinephelus malabaricus [initial body weight of (238.99 ±5.32) g].The fish were divided into 3 groups:F1 , F2 and F3 , which were respectively fed 1, 2 and 3 times every day and fed to satiety each time.Samples were successively collected and analyzed after feeding 28 d, 56 d, and 84 d.The results showed that during the three periods of 0-28 d, 29-56 d and 57-84 d, as feeding frequency increasing, the weight gain rate and specific growth rate increased significantly (P<0.05).During 0-28 d and 29-56 d, the protein efficiency ratio (PER) of F2 was significantly higher than that of F1 and F3(P<0.05), while during 57-84 d, the PER of F2 was significantly higher than that of F1 ( P<0.05) but had no significant difference from that of F3 ( P>0.05).Feed efficiency of F2 was significantly higher than that of F1 and F3 during 0-28 d (P<0.05), while during 29-56 d and 57-84 d, was higher than that of F1 ( P<0.05) but had no significant difference with that of F3 ( P >0.05).By the 28th d, plasma antioxidant indices were not significantly affected by feeding frequency (P>0.05).By the 56th d, T-AOC and CAT of plasma showed no significant difference among the groups (P>0.05), while T-SOD of F1 was significantly higher than that of F3 (P <0.05) but had no significant difference from F2(P>0.05), MDA of F3 was significantly higher than that of F1(P<0.05) but that of F1 and F2 had no significant difference ( P>0.05) , and GSH-PX of F2 was significantly higher than that of F1(P<0.05) but that of F3 and F1, F3 and F2 had no significant difference (P>0.05).By the 84th d, plasma T-AOC and MDA were not significantly affected by feeding frequency (P >0.05), while plasma T-SOD and CAT of F2 were significantly higher than those of F1 and F3(P<0.05), and plasma GSH-PX of F2 significantly higher that of F1 (P<0.05) and had no significant difference (P>0.05) from F3. Results of the present study suggest that the optimal feeding frequency is 2 times/d in the culture of Epinephelus malabaricus with an initial body weight of about 239 g.关键词
投喂频率/点带石斑鱼/生长/血浆抗氧化指标Key words
feeding frequency/Epinephelus malabaricus/growth/plasma antioxidant indices分类
农业科技引用本文复制引用
窦艳君,邢克智,王庆奎,陈成勋,孙学亮..投喂频率对点带石斑鱼生长和血浆抗氧化指标的影响[J].渔业现代化,2016,43(2):1-6,6.基金项目
“十二五”农村领域国家科技计划（2011BAD 13B07）；国家自然科学基金（面上）（31270456）；国家星火计划重大项目（2013GA610002）；国家农业科技成果转化基金（2014GB2A100528）；天津市高等学校创新团队基金 （）
