Rehabilitation of affected fish ponds

1, repair fish ponds

Raise and reinforce the fish ponds, remove the silt and debris in the water inlet and outlet, ring mountain ditch, and flood control channels, and repair the supporting pig farms, duck farms, power grids, roads, drought-resistant and oxygen-increasing equipment, and create good basis. For some fish pond bases with severe disasters and a large number of projects, they will be rehabilitated and repaired in the autumn and winter, so as to lay a solid foundation for the spring of next year.

2, clear pond disinfection

Each mu of surface water with quick lime 100 ~ 150 kilograms of water full pond sprinkling, while using 50 kilograms of tea bran broken soaked water day after night the whole pond spilled. Quicklime can kill wild fish, neutralize acidity, improve water quality, release nutrients, and increase pH; Tea bran can also kill wild fish and some fungus parasites due to saponin saponins, fertilize water quality, and medicinal properties. Decomposition afterwards is a nutrient food for fish. Tea bran can also be used together with bleaching powder. Each mu of water surface with bleaching powder 3 ~ 4 kg of water, whole pond sprinkling, 4 hours after the whole pond spilled tea bran residue water, the role of ibid.

3, fertilization water quality

At the same time as the disinfection of clear ponds, 200 to 300 kilograms of human feces and ponds released by fermented yeast are used to cultivate plankton, fertilize water quality, and prepare abundant feed for the fish seedlings in Xiatang. When the fish species is under the pond, the transparency is preferably about 30 cm.

4, reasonable stocking

As time has passed for half a year, farmers need to adjust measures to local conditions, combine actual conditions, and rationalize their stocking. If it is the village edge pond, Wangtian pond, shallow pond, in the case of ample feed, acre fish species (Fushou fish species) (5-8 cm/tail) 600-800 tails, 100 tails,é³™ 60 tails, 40 grass carp (tail length 15 cm), and strive to reach the specifications before the end of the year. If it is a large area base supporting Tangtou pigs, ducks on the surface of the fish ponds, adequate water sources, drainage and irrigation facilities, can be more appropriate to put some seedlings.

5, fish species selection stocking

The fish species were selected for the same species, and their specifications were roughly the same, and the body was robust, full-bodied, responsive, and well-behaved, with no disease-free individuals. For the sake of safety, in front of Xiatang, put a few bamboo rafts around the disinfected ponds in the clear pond and raise several test fish species. After 24 hours, they are still lively and vigorous, indicating that the medicinal properties have passed and fish species can be released; if they die, , The toxicity is still, can not put the species, until the disappearance of the drug before the fish species breeding.

6, scientific feeding

Make reasonable adjustments according to different growth stages. In the fry summer flowering stage, the feeding amount is 8% to 10% of the fish body weight; during the rough breeding of the fish species, the feeding amount is 5% to 7% of the fish body weight; 3% to 5% of the diet is fed once a day in the morning and in the afternoon, and the amount of feed in the morning accounts for 40% of the day. In the feeding process, attention must be paid to the regulation of the water temperature. In the water temperature between 20 and 30°C, the fish population can consume a large amount of food and can increase the amount of feeding appropriately. In the rainy days, the low pressure floating head is not fed.

7, strengthen management

In the hot summer and autumn seasons, fresh water is replenished once every two months, and 20% of the old water is discharged, so as to keep the water quality “fat, live, tender and cool”. Followed by the prevention and treatment of fish diseases. Summer and autumn are the peak season for rapid fish growth, and it is also a season of fish disease. So every half a month, use 20 tons of quicklime per acre of water to pour in the whole pond to adjust the pH of the water and improve the water quality. It is required to inspect the pond three times a day. In the morning, the main observations are the fish movements and the presence or absence of floating heads. At noon, observe the fish feeding conditions. In the evening, check the food court for residual baits. The food bait and debris should be cleaned out every day and the waterproofness deteriorated. Every 10 days, the pH value and transparency were measured once and corresponding measures were taken.

8, timely listing

Due to the fact that a considerable number of ponds and fish ponds are floating ponds every other year, although the growth is affected during the summer typhoon, some people will go to the autumn after the summer and the holidays will be more and more prosperous. It is recommended that the listed fishes be marketed in due time. The price is for sale. In addition, what will be listed, what will be added, how much will be listed, how much will be added, and the relative stability of the number and variety of fishmouth will be maintained, and we will strive for better economic benefits in the coming year.

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