Two-stage efficient rearing method for freshwater shrimp fry
A two-stage, green shrimp technology, applied in the field of green shrimp seedlings, can solve the problems of poor water quality in ponds, irregular sizes of shrimp seedlings, and aggravated decline in the survival rate of shrimp seedlings.
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[0044] Below in conjunction with specific embodiment the technical scheme is further described as follows:
[0045] 1. Breeding conditions
[0046] The site is at Li Jianguo Tangkou, Guli Town, Changshu City, with an area of 4 mu. The ponds are rectangular, east-west, about 1.5m deep, flat bottom, loamy soil, bottom silt less than 10cm, sufficient water source, good water quality, no pollution, convenient irrigation and drainage. One 2.2 kilowatt inflatable oxygen pump is installed.
[0047] 2. Preparation before stocking
[0048] Clean up the pond and remove excess silt from the bottom of the pond. One week before stocking, use 150kg of quickliming water per mu and sprinkle the whole pond to kill various pathogens and harmful organisms in the pond and improve the bottom quality of the pond. Exposure to the bottom of the pond until dry.
[0049] Two days before the parents are stocked, add new water to 0.8 meters, and filter the outer end of the water inlet with a 60-me...
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