How to breed water worms
I. Life and reproduction habits of water earthworms
The water earthworms are not big and grow long About 100 mm, but group yields are higher. The difference between the caudal gill worm and the water silk worm is that the former has caudal gills, and the tail is often exposed to the mud. Water worms like to live in the silt of the micro-muddy waters rich in organic matter, generally lurking 10 cm to 25 cm below the mud surface, and hiding deep in the mud at low temperatures. Water earthworms prefer dark and photophobic, and cannot be exposed to the sun. They feed on the soil and absorb the organic humus, bacteria and algae in them. The water earthworm is sexually mature in about 2 months, hermaphroditic, allograft fertilization, and the eggs are enclosed in a cystic worm cocoon composed of a transparent glial membrane. Generally, a worm cocoon contains 1 to 4 eggs, and as many as 7 eggs. During the reproductive period, each adult can excrete 2 to 6 worm cocoons. When the water temperature is 22-32??C, the incubation period is generally 10-15 days, and the lifespan of artificial culture is about 3 months.
2. Pit raising method
1. Pit and pond conditions
Build a suitable for aquatic The ecological environment in which earthworms live requires micro-flowing water, loose soil, rich humus, and shelter from light. The pit can be newly excavated or rebuilt by using the water pit connected to the ditch. The area is determined according to the needs. Loess or triple soil with good water retention is used to build the bottom, and set up water inlet and outlet . Generally, the inlet and outlet should be separated, one end for water and the other for drainage. Before introducing the seeds into the pit, the bottom mud should be cultivated. It is best to dig fertile fish pond mud and spread it on the bottom of the pit with a thickness of 10 cm. Then add 7.5 to 10 kg of livestock and poultry manure or farmyard manure per square meter. Fermented cake, bran, bran, etc.
2. Introduce seeds into pits
The amount of seeds introduced depends on water quality, mud quality, manure source and season. The fertilizer source and mixed feed source are sufficient, the introduction amount is large, and the yield is high. Generally, 0.25 to 0.5 kg of worms are placed per square meter. After 30 to 45 days of cultivation, the daily harvest per mu can reach 10 to 15 kilograms, with a maximum of 48 kilograms.
3. Management
Maintain micro-flow water to keep the water fresh and the dissolved oxygen higher, accelerate the dissipation of metabolites, and increase the feeding and growth of earthworms . Generally, the flow rate of the water flow is 2 to 8 cm/sec. The speed should not be too fast. If the water flow is too fast, the nutrients and worm cocoons will be washed away, which will affect the output. After the introduction of earthworms, they should be fed once every 2 to 3 days. If concentrated feed is used, the bait coefficient is about 2.6; if pig and cow dung is used, the bait coefficient is 7.8 to 10.4.
4. Harvesting
It can reduce the water flow or cut off the water at night, resulting in hypoxia in the next morning or morning, and the water worms will be killed. Force the clusters to float on the mud surface or float to the surface of the water, and use a scoop to pick them up.
2. What is the difference between water worms and red worms
Differences:
1. Earthworms can be called universal bait, fishing
Almost anything will do.
2. It is better to catch crucian carp with red worms. There are many bacteria in the red worms, so there should be no wounds on the hands when using it.
3. Red worms are small and small. There are two kinds of earthworms, one is also red, but obviously longer than the red worm, and the other is blue and black, which is not suitable for fishing.