To explore high-efficiency and energy-saving industrial farming technology for the large-mouth bass Micropterus salmoides,a trial and demonstration was conducted in a factory workshop.The double-cycle and three-separation tail water treatment technology was adopted to carry out seed stocking,seed timely grading,feed selection and feeding,water environment regulation,fish disease prevention and control.The technology achieved the production of two batches of bass a year,with the annual output of 105 700 kg,the annual unit yield of 163.12 kg/m3,and the annual unit ben-efit of 1 908.33 yuan/m3.The annual input-output ratio was 1∶1.50.The daily electricity cost was only 106.98 yuan,and the daily water supply from the pond outside the workshop was 3.09%.Good economic benefits,social benefits and ecological benefits had been achieved.
维普
万方数据