1, the method of cultivating earthworms
Potting method: This method is suitable for small-scale farming of family members, urban residents or related scientific research. Potted flowerpots, flowerpots and other waste ceramics can be used for breeding. This feeding method is simple, very easy to manage, convenient to move, and the temperature and humidity are conducive to control.
Box-and-basket cultivation method: the cultivation boxes and baskets are made of packed wooden boxes, waste wood, bamboo, willow branches, Robinia pseudoacacia, vines and other materials. Paint containing lead or oil phenol barrels cannot be used as feeding boxes. The size and appearance of boxes and baskets can be made as required, but the area of each box and basket shall not exceed 1 m2, which is beneficial to movement and management.
Pond culture method: a pond with a total length of about 70cm, a width of 50cm and a depth of 30 cm can be built from the front and side of the house. In the pond, funds can be invested to treat soil, shredded paper, green leaves, leftovers, dead leaves, weeds, livestock manure, seafood offal and other wastes.
2. Earthworm culture technology
Temperature: The growth, activity, reproduction and respiration of earthworms are all affected by temperature, especially different temperatures have great influence on reproduction. The suitable temperature of earthworm is about 15-20 degrees. When the temperature is lower than 15℃, the activity of earthworm will decrease, and the growth rate and reproduction rate will also decrease. When the temperature is higher than 30 degrees, the earthworm will die, and when the temperature is as low as 5 degrees, the earthworm will go into hibernation.
Light: Earthworms have no eyes, but there are photoreceptor cells with similar crystal structure in cortex, epidermis and anterior lobe of mouth. Earthworms will weaken in some light, especially in Nocturnal Animals, which can't be exposed to direct sunlight (it will dry up in five minutes), so the feeding shed needs shading. Earthworms are generally required to be cultured in the dark light of 100 lux. Earthworms have different reactions to different wavelengths of light, red light has no reaction, ultraviolet light is harmful, and blue light stimulates them.
Morphological structure of earthworm
The body is segmented without division, the wart foot degenerates, and the body surface has bristles. Androgyny, with 1-2 pairs of gonads, the reproductive duct originated from the body cavity. When sexually mature, there is an annular band on the body surface, which can fertilize each other during mating. Eggs are produced in the girdle, and form cocoon after shedding, which develops directly.
The setae are solitary, 8, sometimes many, arranged in a ring shape, with 1-2 pairs of testis, usually at10-1node, and a pair of male reproductive pores, which are located on two or more somites behind the posterior testis, namely/kloc-0. A pair of ovaries, located at 13, have thick bands and few yolk. The body wall structure consists of cuticle, epidermal cells, annular muscle and longitudinal muscle, and the muscle layer is the body cavity membrane. There are well-developed glandular cells in epidermal cells, which can secrete mucus to moisten the skin and facilitate movement in the soil.