摘要
为探索“蟹公寓”养殖条件下,拟穴青蟹养殖的适宜饵料,本研究通过投喂缢蛏(Sinonovacula constricta,SC)、杂鱼(Hypophthalmichthys molitrix,HM)、青蟹配合饲料(CF)和鳗鱼饲料(EF)等4类饵料,比较分析了不同饵料投喂下拟穴青蟹的特定生长率、生化指标及酶活性。结果显示,缢蛏组特定生长率显著高于其他组(P<0.05)。血清生化指标中,鳗鱼饲料组的白蛋白含量显著低于其余各组(P<0.05)。肝胰腺生化指标中,总蛋白含量各组差异不大(P>0.05),白蛋白含量鳗鱼饲料组显著低于其余各组(P<0.05),甘油三酯含量青蟹配合饲料组的最高。生化酶活指标中,杂鱼组SOD活力显著低于其余各组(P>0.05),Na^(+)K^(+)-ATP酶活力则是鳗鱼饲料组最低。消化酶中,胃蛋白酶和淀粉酶各组差异不大(P>0.05),脂肪酶则是杂鱼组显著高于其余各组(P<0.05)。相关性分析中,杂鱼组特定生长率与蛋白酶活力表现出显著正相关(P<0.05)。研究结果表明,在“蟹公寓”养殖条件下,缢蛏是综合指标最好的饵料,在拟穴青蟹的特定生长率及生化酶活方面有很大优势;但青蟹配合饲料在青蟹肝胰腺指数及甘油三酯含量上有一定优势。
To investigate the effects of different diets on Scylla paramamosain after feeding for 56 days,multiple indexes including body weight,specific growth rate(SGR)and hepatopancreas index(HSI)were compared among four different diets(HM-Hypophthalmichthys molitrix,CF-crab compound feed,EF-eel feed,SC-Sinonovacula constricta).In addition,biochemical composition,serum biochemical indexes,hepatopancreas biochemical indexes and digestive enzyme activities(Protease,LPS,AMS)were calculated.The results showed that SGR of SC was significantly higher than that of other diets(P<0.05).In terms of serum biochemical,TP content of EF diet was significantly lower than that of other diets(P<0.05).In terms of hepatopancreas biochemical indexes,there was no significant difference in TP content among four diets(P>0.05),ALB content of EF diet was significantly lower than that of other diets(P<0.05).TG content of CF diet was the highest among all diets.Among the biochemical enzyme activity indexes,SOD activity in HM diet was significantly lower than that in other diets(P<0.05)while Na^(+)K^(+)-ATPase activity in EF diet was the lowest among all diets.In terms of digestive enzymes,there was no significant difference in protease and AMS in four diets(P>0.05)while LPS in HM diet was significantly higher than that in other diets(P<0.05).In terms of the correlation analysis,the specific growth rate of HM diet was positively correlated with protease activity(P<0.05).To sum up,Sinonovacula constricta was the best diet with the best comprehensive index under the condition of"crab apartment",which has great advantages in SGR and biochemical enzyme activity indexes.But crab compound feed has certain advantages in hepatopancreas TG content and hepatopancreas biochemical indexes.
作者
苏贵森
肖国强
蔡景波
张翔
黄晓林
蔡西栗
蔡逸龙
柴雪良
SU Guisen;XIAO Guoqiang;CAI Jingbo;ZHANG Xiang;HUANG Xiaolin;CAI Xili;CAI Yilong;CHAI Xueliang(National Demonstration Center for Experimental Fisheries Science Education,Shanghai Ocean University,Shanghai 201306,China;Zhejiang Mariculture Research Institute,Zhejiang Key Laboratory of Exploitation and Preservation of Coastal Bio-Resource,Wenzhou Key Laboratory of MarineGenetics and Breeding,Wenzhou,Zhejiang 325005,China;Pingyang Agricultural and Rural Bureau,Wenzhou,Zhejiang 325400,China)
出处
《海洋湖沼通报》
CSCD
北大核心
2022年第2期41-48,共8页
Transactions of Oceanology and Limnology
基金
浙江省重点研发计划项目(2019C02045,2018C02039)。
关键词
拟穴青蟹
饵料
生长性能
生化酶活
蟹公寓
Scylla paramamosain
diet
growth
enzyme activity
crab apartment
