不同饲养密度对鳝苗的生长性能研究  

The growth performances of Monopterus albus with different breeding densities

作　　者：包淋斌[1] 

机构地区：[1]江西农业大学江西省动物营养重点实验室营养饲料开发工程研究中心,江西南昌330045

出　　处：《江西水产科技》2014年第4期7-9,共3页Jiangxi Fishery Science and Technology

摘　　要：本试验以水蚯蚓作为饵料,研究了60日龄鳝苗不同密度下的增重、存活率及饵料转化率。试验分3个密度组,其对应的密度分别为2000尾/m2、3000尾/m2、4000尾/m2,每个密度组设4个平行;试验时间为30d。结果表明:在本试验条件下,3个密度组鳝苗的增重率、存活率随着密度的增大呈下降趋势,而其饵料系数随着密度增大而增大;其中在4000尾/m2的密度下,鳝苗的增重率最低,仅为1.12±0.13;饵料系数最高,为5.71±1.37。This test by water earthworms as bait , studied weight gain , survival rate and feed conversion rate under different density on the 60 day Monopterus albus .trial density was set to 2000 /m^2 , 3000 /m^2 ,4000 /m^2 ,and each density has 4 paral-lels.The results shows that：As the density increases , with weight gain and survival rate has fallen , while the feed conversion ratio increased in the three density .under the density of 4000 /m^2 , the lowest rate of weight gaining , only 1.61 ±0.13;but the high-est feed conversion ratio , which reaches to 57.1±1 .37.

关 键 词：黄鳝 水蚯蚓 密度 饵料 

分 类 号：S966.4[农业科学—水产养殖]