CAJ | 학술논문

在水温8．9～14．2℃下，在平列糟（长3m，宽0．4m，高0．2m）中采用A、B和C组三种投喂方式驯养刚开口摄食、体质量0．129±0．07g的哲罗鱼（Huchotaimen）苗60d，以探讨驯化方式对哲罗鱼仔、稚鱼生长、存活和种群变异系数的影响：A组以浮游动物开口，投喂浮游动物3d，投喂水蚯蚓15d后，改投人工饲料；B组以水蚯蚓开121，投喂水蚯蚓15d后，改投人工饲料；C组直接以人工饲料开口。结果表明：C组体质量特定生长率（3．577±0．78％／d），明显大于A组（3．132±0．87％／d）和B组（3．024±0．91）；A、B、C组的成活率分别为75．67％、74．87％和84．36％，C组明显大于A、B组；A、B和c组鱼体质量变异系数依次为21．47％、22．59％和11．32％，实验表明，直接以人工饲料开口是哲罗鱼规模化养殖中合理的驯化投喂模式。
재수온8．9～14．2℃하，재평렬조（장3m，관0．4m，고0．2m）중채용A、B화C조삼충투위방식순양강개구섭식、체질량0．129±0．07g적철라어（Huchotaimen）묘60d，이탐토순화방식대철라어자、치어생장、존활화충군변이계수적영향：A조이부유동물개구，투위부유동물3d，투위수구인15d후，개투인공사료；B조이수구인개121，투위수구인15d후，개투인공사료；C조직접이인공사료개구。결과표명：C조체질량특정생장솔（3．577±0．78％／d），명현대우A조（3．132±0．87％／d）화B조（3．024±0．91）；A、B、C조적성활솔분별위75．67％、74．87％화84．36％，C조명현대우A、B조；A、B화c조어체질량변이계수의차위21．47％、22．59％화11．32％，실험표명，직접이인공사료개구시철라어규모화양식중합리적순화투위모식。
Taimen Hucho taimen fry with body weight of 0.129 ± 0.07g were fed by 3 feeding regimes in which the fry were fed zooplankton for 3 days, then Tubifex for 15 days and formulated feed (Group A); Tubifex for 15 days and then formulated feed (Group B); and formulated feed (Group C) for 60 days to evaluate effects of weaning regimes on growth, survival and population coefficient of the larvae and juveniles. The results showed that the fish in Group C had higher specific growth rate in weight (3.577± 0.78%/d) than the animals in Group B (3.024± 0.91%/d) and Group A (3.132± 0.87%/d). There was 84.36% survival rates in Group C, higher than those in Group A (75.67%) and Group B (74.87%). The variation coefficient in body weight was found to be 21.47% in Group A, 22.59% in Group B and 11.32% in Group C, indicating that the weaning pattern of Group C is a feasible method for intensive fay culture in taimen.