The appropriate temperature in the fall is a critical period for the development of excellent and robust fry. Here are four methods:
1. Soybean milk cultivation method. Soak soybeans with water first, then add water while grinding, so that 1 kilogram of soybeans is ground into 20 kilograms of soybean milk. Soymilk should be evenly distributed, generally from 8 to 9 am and fed at 2-3 pm. Grass and herring are fond of feeding in the shallow water near the pool. Therefore, grass and bluefish seedlings should be splashed around the pool first, and then Quanchiposa. At the beginning, 3-4 kilograms per mu will be fed every day. After one week, it will increase to 5-6 kilograms, and 10 thousand kilograms of soybeans will be needed to cultivate 10,000 fry.
2, fertilizer cultivation method. In the first 5-7 days before the fry, 250-300 kg of silage per mu, or 200-300 kg of decomposed manure. The top of the fish ponds is topdressed 3-4 days after the lower pond, and manure is applied 20-30 kg per day. When fertilizing, the amount of water should be used flexibly, and the amount of water required for the cultivation of carp and carp seedlings pools should be higher than that of fertilizer.
3, fertilizer - soy milk mixed cultivation method. First of all, to apply sufficient base fertilizer to cultivate plankton, when the fish rear ponds are low plankton, the daily increase of soybean milk 2-3 kilograms per acre, every day after 10 days to 3-5 kilograms per acre. If the water quality is thin, apply fertilizer once every 3-5 days, and apply 150 kg of manure per acre.
4, grass pulp cultivation method. High-speed beaters are used to beat the seeds of Erythrina elegans, Eichhornia crassipes, and water lilies, which can both feed fish and increase plankton. Every day, the whole pool is splashed once a day. The daily dosage is 50-75 kg/mu, and the cultivation of 10,000 summer fish species requires 125-200 kg of green grass. Two-5% salt must be added when beating with A. mellifera, and it can be fed only after a day and night.
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