How are earthworms and egg cocoons separated? Sharing farming experience

For earthworms raised in boxes or bed-raised earthworms in large farms, because feed is added many times, after 2 to 3 months, the feces pellets and earthworms need to be separated, and the egg cocoons laid in the feed also need to be separated from the feces pellets. The separation methods are as follows:

1) Basket-sifting method: after feed has been added several times, the density of adult earthworms is high, the number of egg cocoons increases, and the rearing bed (box) feed has basically turned into castings. Put the earthworms together with the feces pellets into a large wooden basket with a 1.2 cm×1.2 cm mesh wire net at the bottom. Taking advantage of the earthworm's fear of strong light, under strong light exposure, the earthworms automatically burrow to the bottom layer. Then use a scraper to scrape the feces pellets and egg cocoons layer by layer into a transport hopper car, until the earthworms pass through the mesh and burrow into the fresh feed layer below. At this point, the vast majority of earthworms are separated from the feces pellets. Then, move the feces pellets and egg cocoons into an incubation bed. Under suitable temperature conditions, after 30 to 40 days, all the egg cocoons hatch, and grow to a certain degree, but have not yet reached the egg-laying stage. Continue to use the basket-sifting method described above to separate the young earthworms from the feces. Let the young earthworms enter a new rearing bed. After screening and packaging, the feces pellets can be used as fertilizer for urban flower growing. 2) Bait-luring method: when the rearing bed has basically turned into castings, stop adding feed on the surface, and instead add feed on both sides of the rearing bed to lure the adult earthworms into the new feed. After most have been lured out, clear out all the old feed containing egg cocoons. Then merge the new feed on both sides of the old bed together with the earthworms. Move the cleared worm castings and egg cocoons onto the surface of a rearing bed containing new feed for incubation. After the young earthworms hatch, they enter the new feed in the lower layer to feed, and then scrape off the upper layer of worm castings. 3) Casting-scraping method: use strong light exposure to make the earthworms burrow into the lower layer, then use a scraper to scrape off the worm castings layer by layer. At the end of scraping, the earthworms gather on the surface of the rearing bed. Move the removed worm castings and egg cocoons into an incubation bed for incubation and cultivation. After the young earthworms hatch, use the same method for separation.