Abstract: In the two ponds with an area of 5.3 hm² in the Jingmen area of Hubei, three kinds of carp pond nesting culture techniques were carried out in 3~5 cm/tail, 4 500 tail/hm², 150~200 g/tail. The results showed that the filter-eating carp was mainly mixed with herbivorous fish, omnivorous fish and ferocious carnivorous fish. The test pond was fed with 30% protein squid micro-grain feed, combined with a small amount of investment. The bio-fertilizer cultivates the natural bait in the pond and catches the commercial squid before July. The average yield of the two test ponds was 15 105 and 15 435 kg/hm² respectively, and the yield of carp was more than 70%; the economic benefits of breeding were 81 525.70 and 82 649.90 yuan/hm² respectively, and the input-output ratio reached 1∶2.40 the above.

Key words: Aristichthys nobilis, pond, size, nesting circular culture