摘要
本文研究了主养鲢鳙非鲫高产池塘的能量输入输出转换效率与鱼池条件、鲢鳙非鲫产量、饲料肥料结构、产量水平等的关系。还与其它养殖结构类型的能量转换效率进行对比分析得出:主养鲢鳙非鲫养殖结构类型的能量转换效率较高,可达15.93％;其最佳效益产量水平也较高,为13.54—14.53t/ha·a;能量成本最低,仅30.12—45.32GJ/t鱼。
The conversion rate of energy input and output in the high-yield ponds mainly cultivated with silver carp, bighead carp and Tilapia and its relations with pond conditions, fish yield and feed and fertilizer structure were studied.The results showed that the energy conversion rate and optimum fish production for the high-yield ponds were 15.93% and 13.54-14.53t/ha · a respectively, which were higher than other kinds of fish cultivation pattern, and that the energy cost was 30.12-45.32 GJ per ton fish, which was also lower than other kinds of fish cultivation pattern.
出处
《农村生态环境》
CSCD
1990年第3期42-46,共5页
Rural Eco-Environment
