我们在饶阳县姚庄鱼种场搞非洲鯽鱼越冬试验已有四年之久,现已试验成功。第一年越冬是从一九七五年开始的。这一年冬用三百九十尾非洲鲫鱼,在一个养水葫芦的地窖里越冬,用四个缸、周围填马粪保温。由于水温底,大部份鱼死亡,到一九七六年春放时只剩了三十六尾,成活率9％。一九七六年冬,建了简易温室,安装了玻璃窗,增 We have been in Raoyang County Zhuang fish farms in Africa over the winter carp test has been for four years, it has been successfully tested. The first year of overwintering started in 1975. Three hundred and ninety African crucians were wintered in winter in a water hyacinth cellar, using four tanks to keep horse manure around. Due to the low water temperature, most of the fish died. By the end of the spring of 1976, only 36 were left alive with a survival rate of 9%. The winter of 1976, built a simple greenhouse, the installation of glass windows, increased