摘要
研究不同投喂频率(1次/d,2次/d,3次/d,4次/d)对福瑞鲤(FFRC strain common carp)幼鱼摄食与生长的影响,试验周期为30 d。结果显示:当投喂频率从1次/d增加到4次/d时,福瑞鲤幼鱼的摄食率逐步提高,1次/d组的摄食率显著低于其他组(P<0.05);体重增长率、体长增长率和特定生长率随投喂频率的增加均有不同程度提高,在4次/d时达到最高;饲料转化率逐步升高,1次/d组显著低于其他组(P<0.05)。各试验组福瑞鲤幼鱼的个体体重/体长差异随着投喂频率的增加而先升后降,最终幼鱼的规格趋于一致。综合本试验结果,投喂频率对福瑞鲤幼鱼的摄食与生长存在显著影响,在4次/d的投喂频率下其摄食水平、生长性能、饲料转化效率及大小分化差异系数等均表现出较好状态。
The effects of four different feeding frequencies（ 1,2,3 or 4 times per day） on the feeding and growth of juvenile FFRC were studied within 30 days. The results showed that the feeding rate was increased with the increasing of feeding frequency. The feeding rate of group of 1 time feeding frequency per day was lower than that of other groups. When feeding frequency was increased,body weight / length gain ratio and specific growth rate were also increased,and both of them reached the highest when feeding 4 times daily.However,feed conversion efficiency was increased when frequency was increased,the lowest occurred in 1time group daily. With the gradually increasing of feeding frequency from once daily to 4 times daily,individual differences of fish body weight / length dwindled down, specifications of juveniles tended to uniform.Therefore it indicated that feeding frequency had obvious effects on the feeding and growth performance of FFRC,and the feeding level,growth performance,feed conversion efficiency and size differentiation coefficient showed better state in the 4 times / d feeding frequency.
出处
《福建水产》
2015年第1期68-72,共5页
Journal of Fujian Fisheries
基金
国家大宗淡水鱼类产业技术体系福州综合试验站(CARS-46)
福建省农业"五新"项目[闽发改投资(2014)482号]
