淡水渔业
淡水漁業
담수어업
FRESHWATER FISHERIES
2014年
5期
78-81,94
,共5页
董旭峰%宋祥甫%周文宗%陈桂发
董旭峰%宋祥甫%週文宗%陳桂髮
동욱봉%송상보%주문종%진계발
角突网纹溞(Ceriodaphnia cornuta)%蚤状溞(Daphnia pulex)%泥鳅(Missgurnus arguillicaudatus)%开口饵料
角突網紋溞(Ceriodaphnia cornuta)%蚤狀溞(Daphnia pulex)%泥鰍(Missgurnus arguillicaudatus)%開口餌料
각돌망문소(Ceriodaphnia cornuta)%조상소(Daphnia pulex)%니추(Missgurnus arguillicaudatus)%개구이료
Ceriodaphnia cornuta%Daphnia pulex%Missgurnus arguillicaudatus%initial feed
在水温（25±1）℃的条件下，以熟蛋黄为对照，研究了角突网纹溞（Ceriodaphnia cornuta）和蚤状溞（Daph-nia pulex）作为泥鳅（ Missgurnus arguillicaudatus）开口饵料的可行性。试验泥鳅为3日龄仔鱼，全长为（4.23±0.05） mm，体重为（1.21±0.01） mg，试验周期为20 d。结果显示：角突网纹溞组、蚤状溞组及蛋黄组泥鳅仔鱼的成活率分别为59.00％、38.67％和27.00％，三组之间的差异均达极显著水平；角突网纹溞组、蚤状溞组和对照组的泥鳅仔鱼全长分别为（26.43±1.96） mm、（28.30±7.64） mm和（12.74±0.15） mm，体重分别为（148.98±25.50） mg、（158.02±101.41） mg和（19.36±0.83） mg，两试验组间的全长和体重差异不显著，但均与对照组有极显著差异。结果表明，两种枝角类（尤其是角突网纹溞）作为泥鳅仔鱼的开口饵料，能较大幅度地提高泥鳅仔鱼的成活率，且可获得较大规格的鳅苗，在鳅苗的规模化人工繁育中具有较大的应用价值。
在水溫（25±1）℃的條件下，以熟蛋黃為對照，研究瞭角突網紋溞（Ceriodaphnia cornuta）和蚤狀溞（Daph-nia pulex）作為泥鰍（ Missgurnus arguillicaudatus）開口餌料的可行性。試驗泥鰍為3日齡仔魚，全長為（4.23±0.05） mm，體重為（1.21±0.01） mg，試驗週期為20 d。結果顯示：角突網紋溞組、蚤狀溞組及蛋黃組泥鰍仔魚的成活率分彆為59.00％、38.67％和27.00％，三組之間的差異均達極顯著水平；角突網紋溞組、蚤狀溞組和對照組的泥鰍仔魚全長分彆為（26.43±1.96） mm、（28.30±7.64） mm和（12.74±0.15） mm，體重分彆為（148.98±25.50） mg、（158.02±101.41） mg和（19.36±0.83） mg，兩試驗組間的全長和體重差異不顯著，但均與對照組有極顯著差異。結果錶明，兩種枝角類（尤其是角突網紋溞）作為泥鰍仔魚的開口餌料，能較大幅度地提高泥鰍仔魚的成活率，且可穫得較大規格的鰍苗，在鰍苗的規模化人工繁育中具有較大的應用價值。
재수온（25±1）℃적조건하，이숙단황위대조，연구료각돌망문소（Ceriodaphnia cornuta）화조상소（Daph-nia pulex）작위니추（ Missgurnus arguillicaudatus）개구이료적가행성。시험니추위3일령자어，전장위（4.23±0.05） mm，체중위（1.21±0.01） mg，시험주기위20 d。결과현시：각돌망문소조、조상소조급단황조니추자어적성활솔분별위59.00％、38.67％화27.00％，삼조지간적차이균체겁현저수평；각돌망문소조、조상소조화대조조적니추자어전장분별위（26.43±1.96） mm、（28.30±7.64） mm화（12.74±0.15） mm，체중분별위（148.98±25.50） mg、（158.02±101.41） mg화（19.36±0.83） mg，량시험조간적전장화체중차이불현저，단균여대조조유겁현저차이。결과표명，량충지각류（우기시각돌망문소）작위니추자어적개구이료，능교대폭도지제고니추자어적성활솔，차가획득교대규격적추묘，재추묘적규모화인공번육중구유교대적응용개치。
The feasibility of using Ceriodaphnia cornuta and Daphnia pulex as initial feed for Missgurnus arguillicaudatus was studied at the water temperature of ( 25 ±1 ) ℃, while the cooked egg yolk was used as the control.The experiment lasted for 20 days.The experimental loach fries were three days old with (4.23 ±0.05 ) mm in total length and (1.21 ± 0.01 ) mg in weight.The results showed that the survival rates of loach fries were significantly different among treatments fed with C.cornuta, D.pulex and cooked egg yolk , which were 59.00%, 38.67% and 27.00%, respectively.The total length of the group fed with C.cornuta, D.pulex and the control group was (26.43 ±1.96 ) mm, (28.30 ±7.64 mm and (12.74 ±0.15 ) mm, while the weight was (148.98 ±25.50 ) mg, (158.02 ±101.41 ) mg and (19.36 ±0.83 ) mg, respectively.Although there were no significant differences in the total length and weight between these two experimental groups, both of them were significantly higher than those in the control group.The results indicated that both of these two kind of Cladocerans ( especially C.cornuta) used as initial feed of loach fries can greatly enhance the survival rate of loach and improve its size.Therefore , the use of Cladocerans as initial feed of loach would be useful for large scale artificial breeding of loach.
