CAJ | 학술논문

为丰富二龄拉氏鱥（ Phoxinus lagowskii Dybowskii）的生长生物学资料，研究了二龄拉氏鱥在池塘养殖条件下的生长特性。对平均体长（8．56±0．78）cm，平均体质量（9．62±0．82）g的拉氏鱥，在水温变幅19．4～27．6℃条件下，经过120 d的养殖试验，体长增长36．76％，体质量增长179．63％。体长与体质量呈幂函数关系：W＝0．0081 L3．2992，R2＝0．9883。体质量日增重在试验60～90 d时最高（0．237 g），体质量相对增长率在试验30～60 d时最高（48．26％）。试验期间，生长常数和生长指标变化趋势一致，在试验30～60 d时最高；试验鱼肥满度从试验初到结束一直小幅升高，变幅为1．5284～1．6710；生长离散60～90 d较大，试验末期较小。结果表明，池养二龄拉氏鱥生长为异速生长型，其体质量增长快于体长增长；特定生长率与水温变化关系密切，水温23．5～27．6℃为生长适宜水温。
위봉부이령랍씨궤（ Phoxinus lagowskii Dybowskii）적생장생물학자료，연구료이령랍씨궤재지당양식조건하적생장특성。대평균체장（8．56±0．78）cm，평균체질량（9．62±0．82）g적랍씨궤，재수온변폭19．4～27．6℃조건하，경과120 d적양식시험，체장증장36．76％，체질량증장179．63％。체장여체질량정멱함수관계：W＝0．0081 L3．2992，R2＝0．9883。체질량일증중재시험60～90 d시최고（0．237 g），체질량상대증장솔재시험30～60 d시최고（48．26％）。시험기간，생장상수화생장지표변화추세일치，재시험30～60 d시최고；시험어비만도종시험초도결속일직소폭승고，변폭위1．5284～1．6710；생장리산60～90 d교대，시험말기교소。결과표명，지양이령랍씨궤생장위이속생장형，기체질량증장쾌우체장증장；특정생장솔여수온변화관계밀절，수온23．5～27．6℃위생장괄의수온。
In order to enrich the data of grow biology for pond culture practices, the growth performances of two-year Phoxinus lagowskii Dybowskii was studied under pond culture conditions.The Phoxinus lagowskii Dybowskii with initial average body length of 8.56 ±0.78 cm and the average body weight of 9.62 ±0.82 g were cultured for 120 days under the water temperature range of 19.4-27.6 ℃.The results showed that body length growth increased by 36.76%and body weight growth increased by 179.63%for the Phoxinus lagowskii Dybowskii.Body length and body weight was power function relationship, and the correlation formula was W=0.008 1L3.299 2 , R2 =0.988 3.The highest daily weight gain was 0.237g from 60th to 90th day.The maximum value of the relative growth increment was 48.26% from 30th to 60th day.During the experiment, growth constants and growth indicators had a consistent variation and maximum value appeared from 30th to 60th day. The fish relative fatness had been slightly increased from initial stage to the end, and ranged from 1.528 4 to 1.671 0.The specific growth rate was closely related to water temperature.The dispersed growth was more obvious from 60th to 90th day, and the smaller dispersed growth at the end of experiment is relatively smaller. The results indicated that two-year Phoxinus lagowskii Dybowsk in pond was allometric growth type.The increment of body weight was faster than that of body length.The specific growth rate was closely related to water temperature.Optimum water temperature was 27.6-23.5 ℃.