论文部分内容阅读
应用传统池塘生产技术与孵化水泥池投饲饲养技术开展了为期2周的异育银鲫鱼苗培育比较试验。结果表明:无论应用传统池塘生产技术,还是孵化水泥池投饲饲养技术,均适用于异育银鲫鱼苗培育。孵化水泥池培育鱼苗规格为(1.67±0.15)～(1.76±0.16)cm,成活率可达71.13%;传统池塘培育鱼苗规格可达(2.16±0.14)～(2.10±0.137)cm,成活率为61.7%;两种不同系统生产的鱼苗均规格均匀、体质健壮、逆水流动能力强,病畸率低。
The application of traditional pond production technology and hatching cement pool feeding technology to carry out a two-week comparative test of heterotrophic crucian carp fry breeding. The results showed that both traditional pond production techniques and hatching cement pond feeding techniques were suitable for the cultivation of allogynogenetic crucian carp fry. The hatchability of hatching cement pond was (1.67 ± 0.15) ~ (1.76 ± 0.16) cm and the survival rate was 71.13%. The traditional pond culture fry index reached (2.16 ± 0.14) ~ (2.10 ± 0.137) cm with the survival rate of 61.7% respectively. The fry produced by the two different systems were uniform in size, robust in body, strong in reverse flow, and low in disease rate.