What is the yield per mu of loach farming in paddy fields?

It depends on how dense you are? Whether the survival rate is high or not, the quality of seedlings is directly related to the income.

In 1983, Ning Zhuangzhi, Anhua County, Hunan Province, used the rice field of 4 points of "late rice seedling field - late rice" to raise loaches, and in one year, 1,500 kg of loach and 350 kg of rice were harvested, equivalent to 3,750 kg of loach and 875 kg of rice per mu.

The loach has a strong ability to adapt to the environment, because the loach burrows the mud to loosen the soil and eats to remove pests, it can promote the decomposition of fertilizer, which is conducive to the growth of rice. Therefore, loach cultivation in paddy fields can not only increase the yield of commercial loach, but also promote the increase of rice yield, so as to achieve the goal of double harvest of loach and rice.

First, the selection of paddy fields for loach breeding paddy fields with weak acidity, less sediment, good water retention, and no overflow during rainfall are preferred. The paddy fields should be surrounded by high ridges, and two nets should be set up at the inlet and drainage outlets to prevent loaches from escaping. At the same time, dig some fish traps in the middle of the field or in the four corners to facilitate future fishing.

2. Transformation of paddy fields Excavate frame-type "field" shaped fish ditches and fish pits in the field. The depth of the fish ditch is 30 50 cm, the depth of the fish pit is 50 70 cm, and the area of the fish ditch and the fish pit accounts for about 20% of the field. When excavating the fish trench, the soil can be used to widen and raise the ridge, so that the ridge is 40 to 60 cm above the water surface.

3. Prepare before stocking 15 days before the loach species are stocked, 50 100 kilograms of quicklime are splashed with water per mu to kill viruses, wild trash fish, water snakes and other enemies. After 7 days, fill 20 30 cm of fresh water, and apply 200 400 kg of cow and chicken manure per mu in the sunny place, so that the loach seeds can be stocked with fertilizer water.

Fourth, put the fish fingerlings loach stocking time in April and May, the specification is 200 240 per kilogram, and the stocking amount per mu is about 20,000. The loach seeds are not fed for 7 days after stocking, and then they are fed with soybean cakes, fish meal, vegetable powder, vegetable cakes, cereal flour and other powdered materials. Live bait can be fed to earthworms, maggots, mealworms, snails, etc.

Feeding twice a day, at 8 9 a.m. and 4 5 p.m., the daily feeding amount accounts for 2% of the loach body weight. At the same time of feeding, cattle, pig and chicken manure should be applied every 10 15 days, 200 300 kg per mu, or stacked rice stalks to rot to cultivate plankton and maintain a certain fertility in water quality.

5. Strengthen water quality management at ordinary times, pay attention to replacing pool water, and change water once a week and once a week in high temperature seasons. When rice is used to control pests and diseases, it is necessary to fill the paddy field with fresh water first, and then discharge the surface water to the normal water level after using the medicine. Spraying pesticides should be sprayed directly on the rice leaves and avoid spraying into water.

It is necessary to choose pesticides that are less toxic to fish and can be digested quickly. At the same time, the pond should be inspected twice a day in the morning and evening to check whether the inlet and drainage outlets are in good condition to prevent loaches from escaping and ensure a bumper harvest of rice and fish.

6. Predators The main predators of loaches are frogs, aquatic insects, birds and ferocious carnivorous fish. Treatment:1

Remove weeds at the edge of the pond, compare the breeding environment environmentally, strictly prevent frogs from invading, find that frogs should be caught in time, and frog eggs should be removed in time; 2.The water inlet should be blocked with a sieve silk net to prevent wild trash fish from entering the pond with the water; 3.Spot birds and drive them away in time.

The standard practice is to "stock 100 kg of seed per mu". When it comes to harvesting, "500 kilograms of loaches will be harvested according to the five-fold increase in yield, and after November and during the Spring Festival, it can be sold for 15,000 yuan." If the cost is removed, it includes 4,400 yuan for 100 kg of seedlings, about 4,000 yuan for feed, 100 yuan for medicine, 300 yuan and 500 yuan for anti-escape nets (replaced once in 3 years), and about 200 yuan for ditching in the paddy field (only in the first year).

In the first year of release, the net income of loach in 1 mu of paddy field can reach 5,800 yuan. Clause.

In two or three years, the net income is expected to reach more than 6,500 yuan.

<> case of good feeding conditions, the yield of loach per mu is generally more than 1000 kg. If it is a 3-4 cm long loach seedling, 80,000-100,000 can be put into one mu; 5-8 cm long loach seedlings can be put into 7-80,000 per acre. The growth cycle of loach seedlings is 100-120 days.

Loaches are bottom-dwelling fish that inhabit the bottom of various shallow and silty environmental waters such as rivers, lakes, ditches, paddy fields, ponds and marshes. Diurnal and nocturnal, it is adaptable and can live in an environment rich in humus. When there is a lack of oxygen in the water, it can jump to the surface of the water and swallow air for intestinal respiration.

When the pool dries up, dive into the mud and do not die as long as the soil is kept moist with a small amount of water. Loaches are widely distributed in China, Japan, Korea, Russia and India along the Asian coast.

The key points of loach cultivation technology in paddy fields along the ridge are as follows: paddy field selection. Paddy field hoists are often required to retain water and slow down the leakage.

Before transplanting, the water depth of the paddy field should be maintained at more than 2 cm. The accumulated rainfall surface of the infill field should be small rather than large. Choose a 20 cm farm for the prevention and control of loach disease.

Since loaches are suitable for filling sites, the breeding sites that are usually chosen during the breeding process are those with good water retention.

Most of the summit had to be proposed and strengthened. Sufficient organic fertilizer must be applied before loach seedlings are raised, and paddy fields must be thoroughly disinfected with quicklime. In recent years, it has been promoted in Haiyan, Kaihua and other places.

Dig a ditch around the paddy field, build a levee, and bury plastic sheeting to avoid loaches.

Loach is a kind of aquatic animal with delicious meat, high nutritional value and strong adaptability, which is deeply loved by consumers. Loach is rich in vitamin B group (especially vitamin B3), and the main role of vitamin B group is to maintain health, promote digestion, and maintain nervous system health. The loach farming industry is gradually emerging, and loach is a fresh and fleshy fish.

Loaches can be stored and raised in water after harvesting in paddy fields, or loach crops appear gradually, but there are few loach crops in paddy fields. Tens of thousands of acres of rice have been unearthed in our county, which is an easy-to-use resource. When transplanting seedlings, it is generally increased by 20,000-27,000 per CAD.

The necessity of post-storage investment.