Pond owners raise squid technology

In 1990, the author started the research on salmon breeding and adult fish breeding, obtained a satisfactory result, summed up a set of complete breeding mode, and now it has popularized and promoted a set of pond main cultivation techniques in the southeastern Hubei province. Introduced as follows:

First, the pond conditions: require less silt at the bottom of the pool, the water depth of 2.0 meters, drainage and irrigation is convenient, the area is best in 15 acres, the area is too small without much economic benefits, the area is too large to cultivate summer flowers, with investment capacity It can be used for large-scale farming with 15 acres of ponds.

Second, carp stocking density, specifications and varieties: According to the maximum pond pond load calculation of the maximum number of bait fish, and then calculate the number of fish available for feeding based on the number of bait fish, generally about one acre stocking about 250, that is a 15-acre pool Can store about 3700 tails. In order to ensure the survival rate after the release, the stocking specifications should preferably be around 5.0cm, but the specifications should be as uniform as possible. The varieties must be of the Yangtze River species, and do not breed relatives that breed eggs, and do not breed virus-carrying species.

Third, the feed fish stocking species, density: bait fish to white peony, flower buds, grass carp, the ratio of 5:1:4, a total of 700,000 acres of water stocking, a total of 15 acres of pool water stocks About 10 million, about 5 million summer flowers can be produced, and 3000 oysters can reach the standard pond.

Fourth, production arrangements:

1. Bait fish production: Drain the pool water before and after the Ching Ming Festival every year and sow the seedlings of the millet at the bottom of the pond, leaving the “+” and “#” fish passes not to plant, so that there is a certain amount of space for the underwater ponds. The best green area is about 3/5 of the whole pool, and it should not be too large to prevent the fry pans from flooding. On the same day in early May, a batch of progeny fish species capable of producing 10 million water splashes were regularly produced on the same day in May. Among them, 5 million white pheasants, 1 million scape flowers and 4 million grass carp. The pond is disinfected with lime of 75 kg/mu in 5-6 days in front of the pond. The water is then flooded and flooded. When the water is sprayed, the gauze is used to stop the nozzle to prevent wild fish from filling. The rice grass was completely submerged. After 2-3 days of irrigation, the spray can be tested on the underwater pond, and the fry can be sprinkled with 2500g/mu of soybean milk twice a day for the first to second week. When the summer flower grows to 2cm or so, it is fed 5-15kg/day, and the powdered fish feed is fed twice a day until the end of September. About a month after the flooding, observe the color of the pool water. If the effect of green manure has passed, you should cast inorganic fertilizer, mainly using urea, superphosphate, dosage of urea 0.5-1 kg/mu, calcium superphosphate 1-2 kg. / Mu days, once a day, fertilization first P after N, water Quanchiposa, leaving a certain safe area, while according to the water, water temperature, weather and bait fish specifications and other conditions appropriate to adjust the amount of fertilizer. Fertilization has always been applied to the end of the month. Irrigation should not be too deep for the first time, and it can be about 0.8 meters on average. After the pool of water is sprayed from 4:00 to 5:00 every morning, it is necessary to inject fresh and live water once about 10 to 20 cm until October.

2. Production of carp: When the carp grows to 5.Ocm and the bait fish grows to 2.5cm, the carp pool can be purchased. Due to the large amount of load in the pool, it is necessary to set up aerators to prevent the lack of oxygen in the pond, and start the machine for 2-3 hours every morning from 4:00 to 5:00. At the same time, the fish and bait were sampled once every 10 days, and their specifications were measured. The palatable bait fish specifications were calculated according to the regression equation, generally between 42.1% and 48.9%. If the bait fish in the pool is too large or too small, immediately adjust the palatability specification by increasing or decreasing the amount of feed and fertilizer applied. During the entire production season, prevention and control of bacterial, parasitic and viral fish diseases should be made. What medicines are used are prepared in advance according to the local fish and fish market and are regularly prevented.