不同投饵模式对大口黑鲈生长的影响  

Effects of different feeding patterns on the growth of Micropterus salmoides

作　　者：韩育章[1] 温周瑞[1] 易爱武 黄君 朱志强[1] 童文羽 郑宏萍[1] HAN Yu-zhang;WEN Zhou-rui;YI Ai-wu;HUANG Jun;ZHU Zhi-qiang;TONG Wen-yu;ZHENG Hong-ping(Hubei Fisheries Science Research Institute,Wuhan 430071,China;Zhijiang City Yuyatou Aquaculture Professional Cooperative,Yichang 433200,Hubei,China)

机构地区：[1]湖北省水产科学研究所,武汉430071 [2]枝江市渔丫头水产养殖专业合作社,湖北宜昌433200

出　　处：《湖北农业科学》2022年第23期129-131,179,共4页Hubei Agricultural Sciences

基　　金：湖北省农业科技创新行动项目。

摘　　要：设置不同投饵频率、不同投饵率、补偿投饵3个试验组,研究其对大口黑鲈(Micropterus salmoides)生长的影响。结果表明,2%、3%、4%的不同投饵率对大口黑鲈生长并未产生显著影响,个体50 g之前可按4%投饵率投喂,后期逐渐递减至2%。在投饵率相对固定的情况下,不同投饵频率对大口黑鲈生长会产生影响。在水温适宜的条件下,每天投喂2次较为合理。投喂5 d停1 d后,试验鱼表现出完全补偿生长,与连续投喂试验组增重率、日增重和特定生长率均无显著差异(P>0.05)。因此,可根据养殖过程中鱼的摄食情况,每5 d左右停喂1 d,可达到节省饲料和人工、提高养殖效益的目的。Three experimental groups with different feeding frequencies,different feeding rates and compensation feeding were set up to study their effects on the growth of Micropterus salmoides.The results showed that different feeding rates of 2%,3%and 4%had no significant effect on the growth of Micropterus salmoides.Before the individual weight of 50 g,the feeding rate was 4%,and it gradually decreased to 2%in the later period.Under the condition that the feeding rate was relatively fixed,different feeding frequencies would have an impact on the growth of Micropterus salmoides.Under the conditions of suitable water temperature,it was reasonable to feed twice a day.The experimental fish fed for 5 days and then deprived of feed for 1 day showed fully compensated growth,and there was no significant difference in weight gain rate,daily weight gain and specific growth rate compared with the continuous feeding group(P>0.05).Therefore,according to the feeding conditions of fish in the breeding process,stopping feeding for 1 day every 5 days could save feed and labor and improve breeding efficiency.

关 键 词：大口黑鲈(Micropterus salmoides) 投饵率 投饵频率 补偿投饵 

分 类 号：S965.199[农业科学—水产养殖]