Detailed Explanation of the Technical Method for Raising Earthworms with Fermented Manure

       The earthworm, commonly known as dilong, is a traditional Chinese medicinal material in China and can treat many kinds of diseases. With the development of extraction technology, a variety of high-tech products have appeared in recent years, such as Xuezhikang, lumbrokinase, and thrombolytic capsules. At the same time, the earthworm is also the most ideal feed for raising valuable aquatic species, and is also used to make protein feed, with broad market prospects. Earthworms have very low requirements for raising conditions; they can be raised indoors or outdoors, and are not only suitable for large-scale raising but can also be raised in wooden boxes, plastic boxes, and ponds. The raw material for earthworm raising is various kinds of fermented organic matter, such as livestock and poultry manure, leaves, fruit peels, and rice straw, which can be fed after fermentation. Most earthworms suitable for artificial raising have very strong reproductive capacity, with a multiplication rate of up to 500-1000 times within one year.
 Earthworm raising technology is simple, easy to learn and operate, with little routine management work, few diseases, and is safe and reliable. For outdoor raising, the average yield is 2000-4000 jin per mu, and at an average annual market price of 5 yuan/jin, the average output value per mu is between 10,000 yuan and 20,000 yuan. The input costs for seed stock, organic waste collection, and Yifuyuan bacterial liquid (for fermentation) are less than 2000 yuan; if organic waste is collected by oneself, the cost is even lower. From the second year onward, there is no need to introduce seed stock, and by self-purifying, rejuvenating, and retaining seed stock, the benefits are even more significant. For indoor raising, the average yield is 10-20 jin of earthworms per sq m, 3300-6600 jin per mu, and at an average annual market price of 5 yuan/jin, the output value per mu is 16,500 yuan-33,000 yuan. After deducting shed depreciation costs, seed stock costs, feed costs, Yifuyuan manure decomposition agent, and labor costs, the net profit per mu is 12,000 yuan-28,000 yuan. The by-product of earthworm raising——vermicompost is the most perfect fertilizer in the world, combining biological fertilizer, organic fertilizer, amino acid fertilizer, humic acid fertilizer, bacterial fertilizer, and micro-element fertilizer in one, and can truly be called the king of fertilizers. Earthworm raising technology is simple, has low requirements, and is very suitable for farmers to raise, and in the past 5 years the market price has been stable with a slight rise, with products in short supply, making it a good way to get rich. Regarding earthworm raising, broad prospects information keywords: earthworm raising, broad prospects
Earthworm raising has many uses
 Using earthworms as fish bait, their essential amino acid index is superior to bait made from other animals. The fat content of earthworms is also higher than that of other animal-based baits. Below are several methods for using earthworms in livestock, poultry, and aquaculture.
      1. Earthworms for raising prawns. Prawn raising usually uses mussel meat and frozen white shrimp as bait, which is very costly. However, feeding trials with earthworms have proven that each prawn can be fed 5 grams of earthworms. About 2 seconds after entering the water, the earthworms spit out yellow paste and mucus, and wriggle and crawl in seawater; the prawns use their walking legs to catch the worms and hold them to eat, generally finishing all of them within 1 hour. After 1-3 hours, purple shrimp feces after digesting the earthworms is excreted. According to observations, the prawns digest normally and their ovaries develop quickly, and after several days they successively lay 105,000-507,000 eggs, while the ovaries of prawns fed mussel meat during the same period had only just begun to develop.
    Mussel meat and frozen white shrimp spoil quickly in seawater, often affecting water quality, causing mass mortality of prawns, with a survival rate of only 25%. Because earthworms can survive in seawater for at least 12-30 minutes, and the protective fluid secreted by the worm body does not spoil even 3 hours after the earthworm dies, it is not easy for them to pollute the water quality, and the survival rate of prawns increases to 55%.
 2. Laying hen raising. Adding 15% earthworms to mixed feed and feeding laying hens for 10 days increases egg production by 175 grams, increases the average weight of each egg by 1.7 grams, and saves 1.4 grams of feed. When feeding earthworms to laying hens, the mixing amount must not be increased blindly; too much not only causes waste but also affects the laying hens' appetite.
 3. Earthworms for raising ducks. Earthworms can be fed to ducks raw, and the feeding amount can account for 60%-70% of the concentrate, that is, 100-150 grams per duck per day. The laying rate
 can be increased by 50%, and each egg increases in weight by 15 grams. When laying ducks are fed earthworms for a long time, the ducks are robust, with full and glossy feathers, and the laying period is extended. Feeding meat ducks with 10% earthworm powder for 45 days, the experimental group can average 10 grams more daily weight gain per duck than the control group.
 4. Earthworms for raising fish. It has been reported that earthworms are an ideal bait for the white fry stage of artificially raised river eel, with good palatability and high feed efficiency. Directly using earthworms and vermicompost to feed fish saves a large amount of labor and also saves concentrate, achieving two benefits at once.
 5. Broiler raising method one: for broilers 20-30 days old, use 21 grams of earthworms per bird per day (about 30 worms); at 30 days old, use 28 grams of earthworms per bird per day (about 40 worms), mixed into the feed. After 40 days, the average weight gain of each broiler in the experimental group increased by 163 grams compared with the control group, with a weight gain rate of 15.9%.
 Method two: adding 12% cooked earthworms to mixed feed and feeding broilers for 60 days, with 60 broilers in each group. The experimental group increased weight gain by 39.1% compared with the control group, while the feed-to-meat ratio decreased by 1.07 (2.92:1), broiler mortality decreased by 5%, weight gain increased by 24.39% compared with the fishmeal group, and the feed-to-meat ratio decreased by 0.35.