福建水产
福建水產
복건수산
JOURNAL OF FUJIAN FISHERIES
2015年
1期
68-72
,共5页
福瑞鲤(FFRC strain common carp)%投喂频率%摄食%生长
福瑞鯉(FFRC strain common carp)%投餵頻率%攝食%生長
복서리(FFRC strain common carp)%투위빈솔%섭식%생장
FFRC%feeding frequency%feeding%growth
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 com-mon 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。
研究不同投餵頻率(1次/d,2次/d,3次/d,4次/d )對福瑞鯉(FFRC strain com-mon carp)幼魚攝食與生長的影響,試驗週期為30 d。結果顯示:噹投餵頻率從1次/d增加到4次/d時,福瑞鯉幼魚的攝食率逐步提高,1次/d組的攝食率顯著低于其他組(P<0.05);體重增長率、體長增長率和特定生長率隨投餵頻率的增加均有不同程度提高,在4次/d時達到最高;飼料轉化率逐步升高,1次/d組顯著低于其他組(P<0.05)。各試驗組福瑞鯉幼魚的箇體體重/體長差異隨著投餵頻率的增加而先升後降,最終幼魚的規格趨于一緻。綜閤本試驗結果,投餵頻率對福瑞鯉幼魚的攝食與生長存在顯著影響,在4次/d的投餵頻率下其攝食水平、生長性能、飼料轉化效率及大小分化差異繫數等均錶現齣較好狀態。
연구불동투위빈솔(1차/d,2차/d,3차/d,4차/d )대복서리(FFRC strain com-mon carp)유어섭식여생장적영향,시험주기위30 d。결과현시:당투위빈솔종1차/d증가도4차/d시,복서리유어적섭식솔축보제고,1차/d조적섭식솔현저저우기타조(P<0.05);체중증장솔、체장증장솔화특정생장솔수투위빈솔적증가균유불동정도제고,재4차/d시체도최고;사료전화솔축보승고,1차/d조현저저우기타조(P<0.05)。각시험조복서리유어적개체체중/체장차이수착투위빈솔적증가이선승후강,최종유어적규격추우일치。종합본시험결과,투위빈솔대복서리유어적섭식여생장존재현저영향,재4차/d적투위빈솔하기섭식수평、생장성능、사료전화효솔급대소분화차이계수등균표현출교호상태。
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 1 time group daily. With the gradually increasing of feeding frequency from once daily to 4 times daily,individ-ual 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 coeffi-cient showed better state in the 4 times/d feeding frequency.