A method for ecologically cultivating rotifers in a puffer fish fingerling pond in summer

Abstract

A method for ecologically cultivating rotifers in a summer eastern puffer fish fingerling culture pond includes fingerling breeding, feed introduction and daily feeding, rotifer introduction, aeration, recovery, water change and repeated cultivation. The method is characterized in that outdoor earth ponds are used for breeding fingerlings, each pond is provided with an aerator, water is injected into the ponds after the ponds are cleaned and disinfected before the fingerlings are bred, summer fingerlings are bred one week after the water is injected, feed introduction is started after the summer fingerlings are bred for 2-3 days, the fingerlings are conventionally cultivated after domestication for 7 days, the rotifers in allogenic water are introduced by water change, the aerators need to be started after water change and the introduction, recovery can be performed after the rotifers are introduced for 5-7 days, a 4-inch submersible pump and a 150-200-mesh net bag are used for suction filtration in recovery, a 16-20-mesh net bag basket sleeves a water pump, suction filtration is performed for 20-30 minutes every time and for 2-3 times every day, the extraction amount and the reproduction amount are kept balanced, recovery is continued for 5-7 days, the water is substantially changed by 2 / 3 to improve water quality, and the rotifers are repeatedly cultivated once one month later.

Description

technical field [0001] The invention relates to aquaculture, in particular to a method for ecologically cultivating rotifers in summer oriental fugu species breeding ponds. Background technique [0002] Rotifers are small zooplankton, rich in nutrients, and are high-quality bait for fish, shrimp, and crab seedlings. Rotifers have the advantages of wide temperature, strong adaptability, fast growth and reproduction, and low cultivation cost, and are widely used in the artificial breeding of aquatic economic animals. Large-scale rotifers are generally cultivated in earthen ponds, but there are still some problems: 1) Extensive use of organic fertilizers causes serious eutrophication in ponds, and cyanobacteria blooms are prone to break out in later stages of cultivation; 2) Summer When cultivating rotifers, the peak duration is short, generally 3-5 days, especially in the high temperature season of summer, the peak time may only be 1-2 days, or even the due peak does not appe...

AI Technical Summary

Problems solved by technology

Large-scale rotifers are generally cultivated in earthen ponds, but there are still some problems: 1) Extensive use of organic fertilizers causes serious eutrophication in ponds, and cyanobacteria blooms are prone to break out in later stages of cultivation; 2) Summer When cultivating rotifers, the peak duration is short, generally 3-5 days, especially in the high temperature season of summer, the peak time may only be 1-2 days, or even the due peak does not appear and directly declines, so during the peak time of summer rotifers Difficult to grasp, unstable output, easily affected by the external environment, the peak time of rotifer production and seedling production often cannot be effectively connected, resulting in greater waste and loss, for example, often such a situation: a large number of rotifer production is needed for seedling production When the rotifer peak has not arrived, it cannot be supplied in large quantities; and when the seedling production is not needed, there are a large number of rotifers in the bait cultivation pond