CATDOLL : CATDOLL: How long does it take to cultivate earthworms (how long is the appropriate time to cultivate earthworms)

1. How long is the earthworm breeding cycle?

The life cycle of earthworms refers to the period from the laying of cocoons, hatching, maturation of young earthworms, to the appearance of rings and the start of egg laying. It usually lasts 3 to 4 months. Taiping No. 2 and Beixing No. 2, which are selected and bred in Japan, have a short life cycle of only 47 days and a long life cycle of 128 days. Some varieties can last as long as 140 to 180 days, which is closely related to the breeding temperature. The life cycle of earthworms needs to go through five stages: egg cocoon stage, young earthworm stage, nymph stage, adult earthworm stage, and aging stage.

(1) Egg and cocoon stage: The hatching time of earthworm cocoons is related to the ambient temperature. The hatching time of Taiping No. 2 at different temperatures is: 85 days at 10℃, 45 days at 15℃, 25 days at 20℃, 19 days at 25℃, and 13 days at 28℃.

(2) Juvenile stage: Juvenile earthworms are small and weak, with a length of 5 to 15 mm. They are initially white and velvety, and later turn into the same color as adult earthworms. This stage is an important stage in breeding and is directly related to the weight gain effect. The length of the juvenile stage is related to the ambient temperature. Under 20~C conditions, the juvenile stage of Daping No. 2 earthworms is 30 to 50 days.

(3) Juvenile stage: Juvenile stage is the stage of young earthworms. The individual is close to adult earthworms, but the sexual organs are not yet mature (no annulus appears). The juvenile stage of Daping No. 2 earthworms is 20 to 30 days.

(4) Adult stage: The obvious signs of adult earthworms are the appearance of annular bands, reproductive organs, maturity, and entry into the reproductive stage. The adult stage is the most important economic harvest period in the entire breeding process. During this period, suitable temperature, humidity and other conditions should be created to promote high and stable yields and prolong the life of the population. This period lasts for half of the earthworm's lifespan.

(5) Aging stage: The main signs of aging are the disappearance of the annulus and a decrease in body weight. At this point, the earthworms have lost their economic value and should be separated and eliminated in time. Under culture, the lifespan of individual earthworms is much longer than that of wild earthworms. The lifespan of different earthworm species varies. The lifespan of most species of Pheretima is one year, such as Pheretima philoxeroides and Pheretima sinensis. The fertilized eggs overwinter in the cocoons in the soil, hatch in March or April of the following year, grow into adults in June or July, mate in September or October, and die in November. Pheretima heterotrichum, Pheretima hupehensis, and Pheretima leucopsis are perennial species with a lifespan of more than one year. They overwinter as adults and lay eggs in the spring of the following year. They are perennial earthworms. The lifespan of earthworms in the genera Heterocephalus and Lumbricus is relatively long. Eisenia fetida can live for more than four years, Lumbricus terrestris can live for up to six years, and Heterocephalus longus can live for 5 to 10 years under good laboratory breeding conditions.

2. How long does it take to produce finished products from Guangdilong earthworms?

Normally, the average growth period of earthworms is 3 months. If the earthworms are in a good growth environment, it will take about half a year to grow to about 10 cm.

Earthworms are thermophilic animals. Wild earthworms will burrow into the soil layer and hibernate during long droughts, severe winters, and high temperature seasons. Generally, earthworms are suitable for artificial breeding at a temperature of 25°C. As long as the temperature is adjusted properly, earthworms can grow and reproduce all year round.

3. How long does it take to see results from earthworm farming?

Earthworm farming generally lasts for 40-60 days, and can be carried out 6-9 times a year. Each acre can produce 2-5 tons of earthworms, and the income per acre is 20,000-30,000 yuan.

First, they do not compete for feed and are easy to raise. Earthworms can eat animal feces, straw, leftover leaves, and rotten leaves. 10,000 earthworms only weigh 450 grams a day, which is very cost-effective.

Second, the cycle is short and the reproduction is fast. Generally, earthworm breeding is a cycle of 40-60 days, and 6-9 cycles can be raised in a year.

Third, the investment is small and the effect is quick. Each mu can produce 2-5 tons of earthworms, and the income per mu is 20,000-30,000 yuan.

It is such a good project, but the profit of earthworm farming in our country is not very large.

One reason is the scale. my country started to cultivate earthworms artificially in 1997, but there are only 20 large-scale farms and about 20,000 individual farmers scattered across the country.

Second, the management is loose and the technology is backward. It is very common to raise earthworms of different sizes together, which will lead to inbreeding of earthworms and a decline in quality.

Third, the use of earthworms is not fully developed. Most farmers sell earthworms as animal bait, ignoring the most profitable earthworm manure.

4. How many months does it take to market earthworms?

Generally, they can be marketed in 30-35 days.

Under artificial culture conditions, if the soil temperature and humidity are suitable and there is sufficient bait, they can reproduce all year round. After mating, earthworms usually begin to ovulate 7 to 8 days later. Each time they lay 1 to 5 eggs, they secrete mucus to wrap several eggs together to form ten cocoons. One earthworm can produce many cocoons.

Generally, at 20℃, they can hatch into young earthworms after about 20 days. After a large number of young earthworms have hatched, they are lured together with high-quality bait and placed in new culture containers for breeding. Generally, they can be sold after 30-35 days.

The growth and development cycle of earthworms is closely related to factors such as temperature, density and humidity. Its growth can be carried out by continuously increasing or enlarging body segments, which usually takes 3-4 months.

5. How long does it usually take to breed earthworms into commercial earthworms?

30-35 days

Generally, at 20℃, they can hatch into young earthworms after about 20 days. After a large number of young earthworms have hatched, they are gathered together with high-quality bait and placed in new culture containers for breeding. Generally, they can be sold after 30-35 days.

The growth and development cycle of earthworms is closely related to factors such as temperature, density and humidity. Its growth can be carried out by continuously increasing or enlarging body segments, which usually takes 3-4 months.

6. How many months does it take for earthworms to grow rings?

3-4 months

The life cycle of earthworms is from the laying of cocoons, through hatching, maturation of young earthworms, to the appearance of rings and the start of egg laying. It usually lasts 3 to 4 months. Taiping No. 2 and Beixing No. 2, which are selected and bred in Japan, have a short life cycle of only 47 days and a long life cycle of 128 days. Some varieties can last as long as 140 to 180 days, which is closely related to the breeding temperature.

7. How long is the earthworm breeding cycle in a greenhouse?

12 crops.

Sexually mature earthworms can reproduce up to 12 times in a year. Under suitable conditions, sexually mature earthworms can reproduce once a month. The newly laid eggs are transparent, oval or spindle-shaped, and initially creamy yellow, turning red in about 7 days. After about another 7 days, they can hatch into small earthworms. The time for development varies from species to species, ranging from one week to several months. Pheretima requires 2-3 weeks, while Lumbricus requires 12-13 weeks. The lifespan ranges from one year to several years. Some Lumbricus can live up to 6 years, and generally reach sexual maturity after one year.

8. How many days does it take to raise earthworms?

Farmed earthworms can be shipped in 40-50 days under normal temperature and feeding conditions.

9. How long is the growth cycle of earthworms?

It takes 45 days for a 5-centimeter-long earthworm to grow, and 90 days for a 10-centimeter-long earthworm to grow.

Earthworms are a universal fishing bait. Almost all freshwater fish like to eat earthworms, such as crucian carp, grass carp, bream, catfish, mandarin fish, yellow catfish, bonito, and black carp, so it is also called four-season fishing bait.

However, there are limits on the number of earthworms that can be found in vegetable fields, and from the end of autumn to the Waking of Insects, there are no earthworms to be found for a long time. Therefore, people who really love fishing will have their own earthworm breeding boxes.

After preparing the soil according to the soil mixing method for earthworm breeding, you can put small earthworms less than 5 cm dug from the vegetable field into the breeding box, put all fruit peels except orange peels, tangerine peels and grapefruit peels on the breeding topsoil, moisten the topsoil with a watering can every day, and put rotten cabbage leaves into the wooden box, but do not pour water into the breeding box.

In autumn and winter, the growth period of earthworms is basically more than 90 days. By then, there will be sufficient earthworm bait for autumn and winter fishing, and there is no need to rack your brains to develop various other baits.