Fish feed technology
From the summer flowering stage, compound feeds can be fed. Summer fish species pool area of ​​1-3 acres, water depth of 1.0-2.0 meters, 2.5 meters deep pool; adult fish pond area of ​​5-20 acres, depth of 1.5-2.5 meters, deep pool 3 meters. The fish ponds are required to be oblong from east to west and there are no clusters of weeds in the pool. It is convenient to enter and drain water. The bottom of the pond is flat and the silt does not exceed 20 cm. Equipment conditions: 1.1.5kw aerators for fish breeding ponds, 1-3 aerators for 3kw aquaculture ponds, 1-3 automatic bait feeders, guaranteed power, and the best self-contained generators. . (a) The main types of feeding fish include Jian'an, Huanghe, Heterophyllus, Pengze, Xiangyun, grass carp, tilapia, catfish, and Wuchang fish. (II) Requirements for stocking 1. The stocking ratio of food-eating fish and filter-feeding fish is 80:20, and the ratio of cod and cod is 4:1. In ponds where the frequent occurrence of green algae or cyanobacteria proliferates and water quality deteriorates, tilapia can be used to regulate water quality. 2. Only one or two kinds of fish are the main cultivars. The cultivar can not affect the feeding and growth of the main cultivar. For example, squid and grass carp cannot be set in the squid pool. 3. It is the best stage for domesticated fish to eat feed when stocking summer fish species. Feeding compound feed from summer fish species can reduce the cost of fish species. (C) Reference stocking mode 1, the main carp carp: 1 summer flower stocking, carp species specifications 2-10 g / tail, density 5000-15,000 tail / acre, in June and then set the specifications for the 100-200 g / tail The fish and squid were respectively 300 tails/mu and 50 tails/mu. 2 Summer flowers are directly cultivated. In June, the stock size is 10g/tail, and the density is 800-1500 tails/mu. The nesting is as follows: squid size is 150g/tail, the density is 250 tails/mu, and the squid size is 200g/ Tail, density 50/mu. Feeding high-grade squid special materials, before the National Day, squid can reach 750 g / tail or more. 3 adult fish breeding, eel species specifications 100 g / tail, density 1500-3000 tail / mu, nesting: squid specifications 150 g / tail, density 200 tail / acre, bream size 200 g / tail, density 50 / Mu, grass carp specifications 50 grams/tail, density 50-80 tails/mu, carp or Wuchang fish size 25 grams/tail, density 150 tails/mu. 2, the main squid: select fine varieties such as Xiangyun wolfberry will increase the size of the fish out of the pool, increase sales prices. 1 Summer flowering, squid species specifications 2 g / tail, density 8000-20000 tail / acre, as far as possible to reduce the octopus, squid nesting ratio. 2 adult fish breeding: fish species specifications 100-150 g / tail, density 1500-3000 tail / acre, nest raising: 50 grams of carp / tail, density 100 tail / acre, Wuchang fish size 50 g / tail, density 100 Tail/acre. The trout density does not exceed 1800 tails/mu and the discharge specification is 350 g/head or more. 3, the main raising grass carp: Summer flowering soaking "bleeding disease" before the vaccine, 50 g / tail fish and then injected "red skin, gills, enteritis" triple vaccine, after immune treatment can reduce the incidence. Feeding green feed properly during the breeding process further reduces costs. 1 Summer flowering: Grass carp size 2-5 g/tail, density 3000-5000 tail/mu, carp size 25 g/tail, density 50 tail/mu, tilapia size 50 g/tail, density 100 tail/mu, The squid size is 150 g/tail, the density is 200 tails/mu, the squid size is 200 g/tail, and the density is 50 tails/mu. 2 adult fish farming: grass carp size 100-150 g / tail, density 500-1200 tail / acre, carp size 100 g / tail, density 300 tail / acre, carp size 100 g / tail, density 250 / acre, The fish size is 200g/tail, the density is 50 fish per mu, the size of carp or black mullet is less than 50g/tail, and the density is 10 fish per mu. 4, raise Wuchang fish: the best choice for the group head lice. Feeding, appropriate feeding green feed. 1 Density of summer flowering: Wuchang fish size 2g/tail, density 10000-15000/mu, carp size 5g/tail, density 1000/mu, carp size 50g/tail, density 100/mu, Catfish or tilapia specifications 10 g/mu, density 100 tail/mu. 2 adult fish breeding: Wuchang fish specifications 100 g / tail, density 800-1500 tail / acre, carp size 150 g / acre, density 200 / acre, carp size 200 g / tail, density 50 fish / acre, carp Or tilapia specifications 50 g/mu, density 250/mu. 5, freshwater whitefish: freshwater whitefish can not naturally winter, when the fish species must be developed. More than 5 cm of freshwater pheasant size, density 1000-1200 tail / acre, squid size 50 g / tail, density 200 tail / acre, squid size 100 g / tail, density 100 tail / acre, squid size 100 g / tail, The density is 200 tails/mu, the squid size is 150 g/mu, and the density is 50 tails/mu. 6, beard 鲶 鲶 鲶 鲶 鲶 鲶 鲶 鲶 鲶 鲶 鲶 鲶 鲶 鲶 鲶 鲶 鲶 鲶 鲶 鲶 鲶 鲶 鲶 鲶 鲶 鲶 鲶 鲶 鲶 〠〠〠〠〠〠〠〠〠〠〠〠〠〠〠〠〠〠〠〠〠〠〠〠〠〠〠〠〠〠〠〠〠〠〠〠〠〠〠〠〠〠ã€. 7. Tilapia: Stocking greenhouse wintering fish species, specifications 25 grams or more, density 1500-2000 tail / acre, sets of octopus specifications 100 grams / tail, density 100 tail / acre. 8. Channel-tailed fish back: Channel fish back to specifications 50 g/tail, density 1500 tail/mu, carp size 100 g/tail, density 200 tail/mu, carp size 100 g/tail, density 50 /mu. (4) Precautions Feed for fish farming is completely aquaculture technology adapted to market conditions. The above model can only be used as a reference. Farmers must determine stocking species, specifications, and density based on factors such as market conditions, breeding conditions, seed sources, and outlet time.