CATDOLL : CATDOLL: How to build a pond for raising eels and loaches? How many eels can be raised per acre?

1. Set up net cages: Use polyethylene mesh to make net cages in rectangular shape, with a bottom area of ​​6-30 square meters, 1-1.5 meters deep, and sewed firmly with nylon thread. 2. Build earthen ponds: Convert rice fields into earthen ponds of appropriate width and length. The water storage depth of the earthen ponds must be more than 50 cm. Polyethylene mesh is set around them, and the joints are sewed with nylon thread. 3. Build cement pools: Build cement pools of appropriate size, lay probing bricks at the pool mouth, and make the four corners into arcs.

1. How to build a pond for raising eels and loaches

1. Set up the cage

(1) The cages for breeding eels are generally made of durable polyethylene mesh (the service life is about 3 years). The shape of the cages should be rectangular, with a bottom area of ​​6-30 square meters and a depth of 1-1.5 meters. They are firmly sutured with nylon thread.

(2) When setting up cages in ponds with a water depth of less than 1.5 meters, piles can be directly driven into the bottom of the pond to fix them; when setting up cages in deep water ponds or reservoirs, floating cages can be set up using objects such as waste oil drums and tires.

2. Build an earthen pond

(1) Build mud ridges in the rice fields and transform them into several small earthen ponds that are 3 meters wide and no more than 10 meters long (this is currently a relatively economical way to raise eels). It should be noted that the water storage depth of each earthen pond should be above 50 centimeters, and a drainage ditch should be set between every two rows of earthen ponds so that the water in each small pond can be drained when necessary.

(2) Polyethylene mesh should be set up around each earthen pond to prevent the eels from escaping. Generally, a polyethylene mesh with a width of more than 1 meter can be used. It should be buried under 20-30 cm of soil, and the joints should be sewn with nylon thread. The pond mouth should be supported by bamboo poles to make the surrounding mesh walls straight.

3. Construction of cement pool

(1) Build a cement pool of 10-30 square meters in size with a depth of 60-80 centimeters. Pave the pool mouth with protruding bricks and make the four corners into arcs to prevent the eels from escaping. Use concrete to lay the bottom of the pool and make it slightly inclined toward the outlet.

(2) Set up an overflow pipe on the lower side of the pool bottom. Take two plastic water pipe elbows with a diameter of more than 5 cm, connect them with a water pipe that is longer than the thickness of the pool wall, and bury them at the outlet so that one elbow is inside the pool and the other is outside the pool.

(2) The disadvantage of building a cement pool is that the one-time investment is relatively large, while the advantages are that it has a long service life, is more convenient to manage, and has good water-saving performance.

2. How many eels can be raised per acre?

1. How many eels can be raised in one acre of land mainly depends on the specifications of the eels. Under normal circumstances, about 2 kilograms of eel seedlings can be put per square meter (or 5-6 kilograms per square meter), and one acre of land is approximately equal to 667 square meters, which means that about 1,334 kilograms of eel seedlings can be raised.

2. If the specification of eel seedlings is 20-40 per kilogram, then generally about 40-80 (or 100) eels can be released per square meter.

3. If the specification of eel seedlings is 50 grams per tail, generally about 160 eels can be released per square meter.

4. If the specification of eel seedlings is 25 grams per tail, generally about 250 eels can be released per square meter.

5. If the specification of eel seedlings is 15 grams per tail, generally about 450-500 eels can be released per square meter.