投喂次数对杂交鲟幼鱼摄食率及生长的影响  

The influence of the feed times on ingestion rate and growth of juvenile hybrid

作　　者：任华[1] 蓝泽桥[1] 孙宏懋[1] 答和庆[1] 

机构地区：[1]湖北天峡鲟业有限公司,湖北宜都443300

出　　处：《粮食与饲料工业》2012年第9期50-52,共3页Cereal & Feed Industry

摘　　要：在(18±1)℃的水温条件下,研究4种不同投喂次数对俄罗斯鲟(♀)与欧洲鳇(♂)杂交幼鱼摄食率及生长的影响。结果表明:杂交鲟生长受投喂次数的影响较大,投喂次数从4次/d增加到7次/d时,6次/d组的摄食率显著高于其他各组(P<0.05);体重增加率、特定生长率均有不同程度提高,6次/d时达到最大(P<0.05);饵料系数6次/d组显著低于其他各组(P<0.05),其他各组间差异均不显著(P>0.05)。杂交鲟幼鱼培育过程中适宜的投喂次数为6次/d。For water temperature of （18± 1） ℃, the effects of four different feeding numbers on the leedmg rate and growtia performance of Russian sturgeon（Acipenser gueldenstaedti） （ ♀ ） and European sturgeon（Huso Huso ） （ ♂） hybrid juveniles. The results showed that： hybrid sturgeon growth was impacted greatly by feeding numbers. As feeding frequency increased from 4 times/d to 7 times/d, the feeding rate of 6 times/d group was significantly higher than the.other groups （P〈0.05） ; the weight gain rate and specific growth rate improved to varying degrees, that of 6 times/d reached a maximum （P〈0.05）） feed conversion ratio of 6 times/d group was significantly lower than the other groups （P〈0. 05 ）, there were no significant differences among the groups （P〈0. 05）. During sturgeon iuvenile development process, it＇s suitable for feeding numbers of 6 times/d.

关 键 词：俄罗斯鲟 欧洲鳇 杂交鲟幼鱼 投喂次数 摄食率 生长 饵料 

分 类 号：S965.215[农业科学—水产养殖]