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[目的]研究养殖密度对革胡子鲶生长性能及血清补体C3、C4的影响。[方法]以体重(30.71±0.89)g革胡子鲶为试验对象,测定4种养殖密度(35、65、95、125 kg/m3)下革胡子鲶生长性能及血清补体C3、C4的变化。[结果]养殖60 d后,随着养殖密度升高,革胡子鲶终末重、日增重均呈下降趋势,其中35 kg/m3与65 kg/m3密度组间差异不显著(P>0.05)。各密度处理组间饵料系数均无显著差异(P>0.05)。低密度处理组(35 kg/m3与65 kg/m3)与高密度处理组(95 kg/m3与125 kg/m3)间死亡率差异显著(P<0.05)。养殖密度对补体C3、C4的影响不显著(P>0.05)。[结论]65 kg/m3可推荐为革胡子鲶的最佳养殖生产密度。
[Objective] The research aimed to study the effects of stocking density on growth performance, serum complement C3 and C4 of leather catfish. [Method] The body weight (30.71 ± 0.89) g Gracilaria glabrata was used as test object to measure the growth performance and serum complement C3, C4 of C. gracilax under 4 stocking densities (35, 65, 95, 125 kg / m3) [Result] After 60 days of culture, the final weight and daily gain of Catfish decreased with the increase of stocking density, and there was no significant difference between the density of 35 kg / m3 and 65 kg / m3 (P> 0.05 ). There was no significant difference (P> 0.05) in the feedstuff coefficient among all density treatment groups. There was significant difference (P <0.05) in the mortality rate between low density treatment group (35 kg / m3 and 65 kg / m3) and high density treatment group (95 kg / m3 and 125 kg / m3). The effects of stocking density on complement C3 and C4 were not significant (P> 0.05). [Conclusion] 65 kg / m3 can be recommended for the best culture density of Catfish.