【摘要】 本试验在水面为180m2的塑料大棚内进行,3月20日投放越冬罗非鱼种12.9kg,尾数315尾。5月21日揭去塑料薄膜开始露天养殖,在塑料大棚中共饲养6天,收获罗非鱼48.9kg,尾数311尾,个体平均重157.5g,成活率98.7％,另外收获鲢鳙鱼10.8kg。更多还原

【Abstract】 The experiment was carried out in earth ponds with total areas of 180m2 in plastic sheet shelf. About315 (12. 9kg in weight) of Orehromis nilotica were stocked into the ponds. After 60 days rearing, about 311 (48.1kg in weights) of young Orehromis nilotica and about 10.8kg in weights of young Hypophthaimichthys molitrex and Aristichthys nobilis.The arerage weight of Orehromis nilotica was 157. 5g, and the survival rate was98.7% .更多还原