The specific uses of earthworms are as follows:
1, medicinal and edible value for human beings.
Lumbricus is a traditional Chinese medicine with antipyretic, analgesic, antiasthmatic, blood pressure lowering, diuretic and menstrual dredging effects. It can be used to treat hypertension, asthma, red eye, sore throat, edema, rheumatalgia, hemiplegia, headache, fever, burn and other symptoms, promote metabolism, and is beneficial to skin care and beauty.
Earthworms, as food, are delicious and have high nutritional value. According to the test, their nutrients contain crude protein 72%, sugar 15%, fat 10% and other 3%. Its meat can be mixed with beef and pork to make various delicious non-staple foods.
The processed earthworm powder can also be mixed with rice and flour. And processed into biscuits, bread and other cooked food.
2, livestock and poultry feeding animal protein feed
Fresh earthworm is the best feed for poultry, and it is nutritious and high protein feed. The consumption of chicks can account for 5% of the diet. After one month, middle-aged chickens can account for 10-15%, and fattening chickens and laying hens can account for 20%.
Ducks have a strong ability to digest earthworms, so the feeding amount of earthworms can be increased appropriately. Herbivores, such as cattle, sheep and rabbits, can be processed into dry powder or cooked and fed. Because of its high protein content, the yield increase benefit after feeding is remarkable. For example, dairy cows and dairy goats fed with earthworm dry powder can increase milk yield 10-40%.
Be careful when using omnivorous monogastric animals such as pigs. Generally, the feeding amount should not exceed 8% of the diet. The reason is that earthworms contain a kind of gamma formic acid, which will produce paralysis if fed too much.
3. An efficient aquaculture bait
Most anglers are used to using earthworm as bait, which shows the attraction of earthworm as bait to fish. It can be said that all kinds of fish like to eat earthworms, especially in the juvenile stage, among which carp, salmon and river eel are the most fond of eating earthworms, while silver carp and bighead carp also eat earthworms when they are young, and then turn to other fish such as underwater humus and plankton when they are adults.
As for eel, turtle, turtle, frog, scorpion, scorpion, snake and other special aquaculture, earthworm is regarded as an important food, especially for frogs, which has changed the habit of not eating live in some places and played a positive role in promoting the development of frog aquaculture.
The circular agriculture with earthworm as the chain utilizes the powerful digestive function of earthworm and comprehensively utilizes agricultural waste to cultivate earthworm. The raw materials for farming are very extensive. The excreta of domestic animals (cattle, sheep, pigs, horses, etc.). ) combined with agricultural wastes (such as fruits and vegetables, crop straws, turf trimming, etc.). ) can be directly cultured by simple pile fermentation. Especially fruit and vegetable waste is the most ideal raw material.
These agricultural wastes are transformed into efficient organic fertilizers (earthworm manure) by earthworms. Earthworm dung is used on crops, fruits and vegetables, and economic trees, which can not only increase production but also improve quality, such as increasing the sugar content of fruits, making them look more beautiful and sell better. The leaves of leafy vegetables become thick and dark green, and the yield is the most obvious.
Extended data:
People say that earthworms are "heroes" in improving soil, which is absolutely true. Earthworms dig the soil to loosen it, so that air and water can easily reach the roots of plants. Earthworms dig caves and passages to help the soil drain quickly. Over the years, farmers in some countries have implemented the "no-tillage method", and they have replaced mechanical farming with the method of increasing earthworm population in the soil in large quantities, which not only saves manpower and material resources, but also improves the soil. ?
The contribution of earthworms to plant growth is enormous. Earthworms live vertically in the soil and eat upside down. They can swallow organic matter equivalent to their own weight every day, and about half of them are discharged as feces. According to the detection of earthworm dung by the Fertilizer Quality Inspection Center of the Ministry of Agriculture, the contents of nitrogen, phosphorus and potassium in earthworm dung are 1.4%, 1% and 1% respectively, and it contains 46% humic acid, 23 amino acids and abundant earthworm protease. There are 105×8 beneficial microorganisms per gram of earthworm manure (only 65,438 in mature soil). The earthworm manure with water content of 85% is exposed to the sun in hot summer 15 days, and the water content at the depth of 20 cm still reaches 45%, which greatly enhances the drought resistance of soil.
Earthworm enzyme in earthworm manure can also kill viruses, harmful bacteria and substances that inhibit plant growth in soil. Earthworm manure is an ideal natural biological fertilizer. In addition, earthworms can degrade and disperse pollutants in soil.
As a result of sewage irrigation, polluted dust settles down and the soil is polluted. Earthworms can absorb and decompose pollutants in their habitats, such as organic pesticides, heavy metals and radioactive substances. Some foreign factories have built tall air purification towers for earthworm dung, which can detoxify and deodorize toxic gases and malodorous gases. In the United States, we are studying the use of earthworms to purify urban sewage, turn it into clean water and return it to rivers.
Earthworms, the most valuable animals in the world. -Darwin
References:
Baidu encyclopedia earthworm