Technology of raising Loach in greenhouse how to raise Loach in greenhouse

Loach is a common aquatic animal, its shape is very similar to Monopterus Albus, but shorter than Monopterus Albus. As we all know, Misgurnus anguillicaudatus has high nutritional value and delicate and delicious meat, so it is deeply loved and sought after by everyone. So do you know how to raise Loach? Let's learn about the method of raising Loach in greenhouse together with Xiaobian.

Technology of cultivating Loach in greenhouse

1. Construction of fish ponds

The fish pond is excavated in the greenhouse, the depth of the pond is 2 meters, the bottom and wall of the pond are compacted, the bottom is covered with 30 cm thick fat mud, the edge of the pool is covered with plastic film, and the water inlet is set at both ends of the pool, the inlet is higher than the water surface of the pool, and the outlet is located at the bottom of the pond. Nylon net is installed at the inlet to prevent debris entry and Loach escape. Dig a 2-meter-long, 0.5-meter wide and 0.3-meter deep ditch at the bottom of the drain for use in Loach fishing and summer vacation. After the completion of the fish pond, the water is 10 cm, and each mu of fish pond is disinfected with 80 kilograms of quicklime and 100 kilograms of chemical water. After 10 days, enter the water to 50 cm, then apply urea 2 kg / mu to improve the water quality, and apply it again 3 days later, waiting for a large number of brown diatoms to be seen on the edge of the pool, the water is yellow-brown and the transparency is about 30 cm, which can release seedlings.

2. Fish fry restocking

Misgurnus anguillicaudatus fry are required to be physically strong, disease-free and injury-free, swimming lively, and the specifications of Loach in each pond should be roughly the same. Misgurnus anguillicaudatus must be washed and disinfected before stocking. One of the methods that can be used is to soak the Loach for 5 minutes with 2% salt water for 10 minutes, with a density of about 2 jin per square meter of water. With the increase of stocking quantity, the weight of fish increased, and the water of the pond could be deepened to 0.5-0.7 meters.

3. put in the bait

15 days after the Loach fry was released, it was mainly fed with natural bait, and some fish meal, bean cakes and bait were properly fed, accounting for 2% of the body weight. The Loach grew to 5 cm thick in the first and middle of June, and changed to carp full-price compound feed. The daily feeding amount was 5% of body weight in June, 10% in July and August, and 5% in September. The feeding amount should be finished within 2 hours of Loach. When casting bait, put the bait near the table.

4. Water quality regulation

The water quality of Misgurnus anguillicaudatus culture pond is yellowish green, the transparency is between 20cm and 25cm, the PH value is about 7.5, and the dissolved oxygen is above 2mg / L. From July to August, the water depth is more than 80 centimeters. It is found that the water color is too thick to change the water in time. Generally, the water should be changed twice every 10 days, and 302 centimeters each time. In the hot season, some aquatic plants, such as water hyacinth, water peanuts, etc., can be transplanted in the pond. Shade shade should also be built on the pool to shade.

5. Greenhouse management

The Loach culture greenhouse takes down the straw covered by the plastic shed from 10:00 to 3 p.m. on a sunny day in winter and early spring, and then covers the straw in the greenhouse for heat preservation. In summer, the plastic film is removed from the greenhouse. Aquatic plants such as water peanuts are planted in the pond to shade the sun. In autumn and late spring, the plastic film is covered with the plastic film, and the straw mat is covered on the film at night.

How to raise Loach in greenhouse

The main results are as follows: 1. The technology of cultivating Loach in greenhouse is higher, such as water transfer technology and disease prevention technology. However, its output benefit is also considerable, and the embodiment of the transformation of production technology into productivity is the direction of the development of our aquaculture production.

2. The intake and drainage facilities in the greenhouse should be complete, the water source is sufficient, the east-west direction, rectangular, leeward to the sun, the average water depth is 1.8m, the pool wall is smooth, there is no rough surface, the bottom of the pool is soil, and oxygen-increasing facilities are laid around the greenhouse.

3. 15 days before stocking, the greenhouse was disinfected with 60kg/ mu of quicklime, and water was brought into the greenhouse after disinfection. The Loach of the same specification was put in the same pond before seedling release, and the fish species were required to be disease-free and injury-free, swimming lively and physically strong, and disinfected with 10mg/L bleach.

4. The artificial floating bait is mainly composed of fish meal, soybean meal, wheat bran, corn, adhesive, feed additive, etc., and the protein content is 32%. Natural aquatic zooplankton feed as an auxiliary, the main species are rotifers, beetles, Cladocera, copepods.

5. The pond in the greenhouse is regularly oxygenated, the dissolved oxygen is kept above 5mg/L, the water quality is monitored regularly, and the transparency is kept above 25cm. The biological preparation "Yijiu" (composed of 8 kinds of beneficial microorganisms such as yeast, photosynthetic bacteria and so on) was used every 15 days in the high temperature season, and the concentration was 10mg/L.

6. The stocking density can be reduced to 180 tails / m2, and increasing the specification of the pool can increase the selling price and indirectly improve the economic benefit.

How much does it cost to raise Loach?

The culture cost of Misgurnus anguillicaudatus is relatively low. Generally speaking, the rental fee of one mu of Misgurnus anguillicaudatus is 400,600 yuan per year, the feed cost is 6000,7,000 yuan, 100000 tails per mu, 800 yuan per 10,000 tails, a total of 8000 yuan, net gear 400 yuan, fishing medicine and disinfection medicine 100 yuan, hydropower 200 yuan, preparation capital 1000 yuan, so it takes about 16000 yuan to invest about 17,000 yuan per mu of Loach, and the breeding profit is about 13000 yuan. Moreover, 2-3 batches of seedlings can be put in every year.

What are the advantages of Loach culture

1. Hypoxia tolerance: Misgurnus anguillicaudatus can breathe through skin and intestines, is very resistant to hypoxia, and can realize the mode of high-density culture, without the phenomenon of anoxia and flooding ponds in general fish.

2. Miscellaneous eating habits: Misgurnus anguillicaudatus has miscellaneous food habits, and the feed is relatively easy to solve. Grains such as corn, wheat, rice and scraps such as rice bran and bean dregs can be used as feed for Loach.

3. Strong reproduction: the reproductive ability of Misgurnus anguillicaudatus is very strong. In general, a female Loach can lay about 3000 eggs a year, and it can reproduce in spring, summer and autumn.

4. Fast growth: the growth rate of Loach is faster, and the small seedlings of Loach produced in spring can reach a larger listing specification in winter, so the funds are returned very quickly.

Through the above content, I believe that we all have a certain understanding of the skills of raising Loach in greenhouse. In fact, Loach is a very good aquaculture of aquatic animals, and breeding Loach small investment, high profits, breeding prospects are very considerable.