【摘要】 本试验是工厂化养鱼实用技术模式研究项目中的一个方面。试验于2002年5月24日至7月25日进行,养殖品种为奥尼罗非鱼和短盖巨脂鲤(亦名淡水白鲳)。初始放鱼量40.0 kg/m3,实验结束时单位水体鱼获量奥尼罗非鱼为78.2 kg/m3,淡水白鲳为82.2 kg/m3。试验期间每两天化验一次,共化验32次,监测8项水质理化指标的变化范围分别为:水温22～30℃、pH值7.36～8.28、溶解氧1.17～8.51 mg/L、氨氮0.79～11.27 mg/L、亚硝酸氮0.551～8.520 mg/L、硝酸氮3.33～42.79 mg/L、磷酸盐磷0.547～9.230 mg/L、碱度257.2～358.2 mg/L。更多还原

【Abstract】 The experiment is one item of the applied technical model in factory fish culturing,which lasted two months.Oreochromis aureus×Oreochromis niloticus and Colossoma brachypomum were selected as the experiment species.Initial unitage of fish was 40.0 kg/m3,and at the end of the experiment,the unitages of Oreochromis aureus×Oreochromis niloticus and Colossoma brachypomum were 78.2 kg/m3 and 82.2 kg/m3 respectively.Every two days,one assay was done during the experiment,and 32 times were done.Eight physical & chemical indexes of water quality were measured.The results were as follows.The water temperature ranged between 22 and 30 ℃,pH value ranged between 7.36 and 8.28,dissolved oxygen changed between 1.17 and 8.51 mg/L,ammonium nitrogen ranged between 0.79 and 11.27 mg/L,nitrite nitrogen was between 0.551 and 8.520 mg/L,nitrate nitrogen was between 3.33 and 42.79 mg/L,phosphate changed between 0.547 and 9.230 mg/L,and alkalinity was 257.2～358.2 mg/L.更多还原