Shantang fish breeding high yield technology

The main features of Shantang are that it is far from villages, it is lean in water, the water level changes greatly, and it is easy to work. Many of the fish cultures in Shantang are only extensive and extensive, and their yield is very low. They do not play the benefits of multiple uses of water in the mountains and ponds. Most of the ponds are deeper and have a larger area. To a certain extent, they have the basic conditions for high-yielding fish ponds. Therefore, as long as the strengths and weaknesses are avoided, the mountain and fish farming will surely achieve high yield and high efficiency. The main measures are:
In order to maintain a pool of fish, the first thing to do is to maintain good water, and we must reasonably solve the contradiction between the fish farming in the mountain pool and irrigation water. The ponds that lack water need to find ways to store more water in the rainy season. For the ponds that have long flowing water flowing in and out, after filling the water, they will try to take the long water bypass.
The mountains and ponds with early stocking, reasonable polyculture, and dense water sources guarantee that the stocking time will advance to 11-12 months of the year before. This will facilitate the transport of fingerlings and increase the survival rate. Lack of fertilizer sources, lean water, and low capital investment, and local green fodder-rich hills and ponds, can raise grass carp, typically 2-3 two grass carp per mu, 1-2 two carp 80 tail, carp 30-50 tails are stocked with a small amount of carp, carp, and white bream, etc.; for the mountains and ponds with rich nutrients in the water, feed, fertilizer, and funds, the species and density of stocking can be appropriately increased. The general stocking of 2-3 two grass carp 150 per mu, 10 centimeters tilapia 500, 1-2 two carp 100, carp 50, with stocking some carp, white peony and so on.
Scientific fertilization should be used to fertilize water and fertilizer in the hills and ponds. The base fertilizer should be applied 10-15 days before the fish species is under the pond. Basal fertilizer can be used for the base fertilizer or manure. Top dressing is based on the changes in the water color of the mountain pool and the change of the water level. Generally, it is top dressing in 3-5 days. In the period of June-September, inorganic fertilizers can be used to top-dress fertilizers. Nitrogen fertilizers and phosphate fertilizers are mixed in a ratio of 1:1 to spill water into shallow water areas, each about 10 pounds per acre. Casting chemical fertilizers is better from 9am to 11am on sunny days.
Conditional mountain ponds can be planted with some grass or ryegrass in ponds or on hillside for feeding grass carp. When there is a shortage of green feed, appropriate amounts of peanut bran, corn, artificial compound feed, etc. are added for supplementation. Feeding time, quality, quantitative, positioning.
Prevention and treatment of fish diseases The depth of the ponds and the large area are very difficult to treat in the event of fish diseases. Therefore, prevention and control should be combined. 1. Do a good job in the ecological prevention of mountain ponds, ie, expose, clear and disinfect the dried ponds in autumn and winter; 2. Use a 3%-5% saline solution to fish the ponds and fish ponds. Wash for 5-10 minutes to disinfect; 3. Inject tissue vaccine to grass carp species; 4. In the epidemic season of fish diseases, regular use of drugs for prevention from April to September, feeding once every 15 days, dosage per 100 Two pounds of fish medication 1, the drug stick to the grass or artificial feed fed.
The round catchers often use the mountains and ponds that are often exposed to autumn drought and strive to stock up early. The ponds that can stay in the water for the winter, and strive to stock the first batch of grass carp, carp, carp, carp and other fish species in the first 11 to 12 months of the year. After the first year of the year, tilapia and white carp species will be stocked and raised to 5 - In June, the first batch of stocked fish to reach the listed specifications will be caught and listed on time, catching large and small fish, and promptly restocking the corresponding fish species after fishing.

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