中国海洋大学学报（自然科学版）2017，Vol.47Issue(12)：37-45,9.DOI:10.16441/j.cnki.hdxb.20160434
饲料中添加超微粉碎浒苔对珍珠龙胆石斑鱼生长、非特异性免疫及消化酶活性的影响
Effects of Enteromorpha prolifera Ultrafine Powder on Growth Performance,Non-Specific Immunity and Digestive Enzyme Activity of Pearl Gentian Grouper
摘要
Abstract
Enteromorpha prolifera,a species of macroalgae and rich in nutrients and bioactive conpounds,could improve immunity,promote growth,and affect metabolism or transformation of nutrients in body among others.This research was conducted to evaluate the effects of dietary inclusion of different levels (0,1％,2％,3％,4％ and 5％) of ultrafine E.Prolifera power on the growth performance,non-specific immunity and digestive enzyme activities of Pearl gentian grouper (Epinephelus lanceolatus ♂ × Epinephelus fuscoguttatus ♀).The results showed that (1) E.Proli ferain power promoted the growth performance best at the content of 4％,at which the feed coefficient rate (FCR) was renarkably reduced and the weight gain rate (WGR) and specific growth rate (SGR) were significantly increased in comparison with control (P＜0.05),and all diets at different contents did not obviously affected the survival rate (SR) and condition factor (CF) while the diet at 2％ significantly affected hepatosomatic index (HSI) (P＜0.05).(2) At the content of 4％,the activities of total superoxide dismutase (T-SOD) and acid phosphatase (ACP) in serum significantly increased (P＜0.05),meanwhile,the activities of alkaline phosphatase (AKP) and ACP reached the maximum at 5％ (P＜0.05).The content of total protein (TP) in serum also remarkably increased at 2％ and 5％ (P＜0.05);however,the activities of phenol oxidase (PO) and lysozyme (LZM) were not affected.(3) At 4％,the power significantly promoted the activities of lipase and trypsin of intestine (P＜0.05).The content of TP in intestine was obviously higher than that in control only at 1％ (P＜0.05);however,the activity of amylase in intestine was not influenced by the addition of E.Prolifera fine power.In conclusion,ultrafined E.prolifera power enhanced the growth performance,intestinal digestive enzyme activities and non-specific immunity of pearl gentian grouper,and the optimum dose of ultrafined E.prolifera power was 4％ in diet.关键词
珍珠龙胆石斑鱼/浒苔/生长性能/消化酶活性/非特异性免疫Key words
pearl gentian grouper/Enteromorpha prolifera/growth performance/digestive enzyme activity/non specific immunity分类
农业科技引用本文复制引用
徐安乐,胡晓伟,黎中宝,黄永春..饲料中添加超微粉碎浒苔对珍珠龙胆石斑鱼生长、非特异性免疫及消化酶活性的影响[J].中国海洋大学学报（自然科学版）,2017,47(12):37-45,9.基金项目
厦门市海洋经济发展专项资金项目(14CZY045HJ19) （14CZY045HJ19）
厦门市科技项目(3502Z20153009) （3502Z20153009）
福建省科技计划项目(2012N0018)资助 （2012N0018）
Supported by the Earmarked Fund for the Development of Xiamen Marine Economic(14CZY045HJ19) （14CZY045HJ19）
Xiamen Science and Technology Fundation(3502Z20153009) （3502Z20153009）
Fujian Provincial Science and Technology Fundation(2012N0018) （2012N0018）
