Artificial feeding method of earthworm

There are many ways to raise earthworms artificially, and the feeding methods should be determined according to the purpose and conditions of feeding. Here are some methods suitable for raising earthworms on a medium and small scale.

1. Pot culture method

Use flowerpots, plastic pots and other waste ceramics to raise. This method is suitable for small-scale feeding in laboratory, because it is simple, easy to manage, easy to operate, easy to control feeding conditions and easy to determine experimental data. However, due to the small size of the basin, it can not be raised more, so it is difficult to apply in production.

When raising earthworms in the basin, the feed should be 3x4 of the height of the basin, and it is suitable to put about 100,200 earthworms in each basin. Due to the small size of the basin, the humidity and temperature in the basin have changed greatly due to the influence of the environment, such as the feed is easy to dry and the temperature changes obviously. Therefore, under the premise of ensuring ventilation, the basin mouth can be covered with plastic film, while often spraying water, in order to maintain the appropriate humidity of the feed in the basin. Or with the level of external temperature often move the position of the basin, in order to adjust the temperature in the basin. In addition, the pot feeding time should not be too long, more than 30 to 60 days is appropriate.

Second, box basket feeding method

This is one of the most commonly used feeding methods. The material of the box basket can be wood, bamboo, bauhinia, rattan, plastic and so on. The length, width and height of the feeding box are as follows: 60 cm × 30 cm × 20 cm, 60 cm × 40 cm × 20 cm, 60 cm × 50 cm × 20 cm, 60 cm × 20 cm × 30 cm, 60 cm × 40 cm × 30 cm. There should be drainage and ventilation holes at the bottom and side of each box basket. The size of the hole should be 0.7-1.2 cm in diameter, so that it can be ventilated and drained and earthworms will not crawl away. The small hole area of the whole box can account for 20% to 30% of the bottom or side area of the box. There are also symmetrical handle handles on both sides to facilitate hand-held operation. The stacking height of the feed in the box is about 16 cm. If there are too many materials, it is easy to cause poor ventilation in the box; if there is too little charge, the feed is easy to dry, which affects the growth and reproduction of earthworms. The input amount of each box of earthworms is about 5000 million. When the feeding scale is large, the boxes can be stacked into three-dimensional box-type feeding, but not too high, generally with 4-5 layers is appropriate.

This feeding method has the advantages of small area, less manpower, convenient management and high production efficiency. However, wooden, bamboo box baskets are vulnerable to wet rot, so it is best to use plastic to make where possible, which is not only durable and consistent in specifications, but also conducive to improving the feeding effect.

Third, pond culture method

This method is often used to raise earthworms in China. Building ponds to raise earthworms is suitable for indoor and outdoor breeding. The breeding pool is built with red brick to grow a pool of 50 cm, 50 cm wide and 15 cm high. The inner and outer walls of the pool are not coated with cement or lime to maintain ventilation. The bottom of the pool can be made of cement floor or mud floor, but it should be solid and flattened. Leave a small opening at the bottom of the four corners of each pool to seep out too much water, and the hole should be covered with plastic net or barbed wire to prevent earthworms from escaping or other harmful animals. If the amount of earthworm input is small, the pool can be divided into several small pools, which is not only convenient for feeding and management, but also can increase the yield per unit area.

Indoor ponds can choose old pig houses and chicken sheds, which must be kept dark and damp, and the light should not be too strong, but they should be well ventilated so as not to affect the growth and reproduction of earthworms.

IV. Soil ditch breeding method

In or around fish, turtle and frog farms, select places with good backlight, moisture and good drainage, dig ditches with a width of 60 cm, a depth of 40 cm and a length of 1 m, and build ridges 20 cm above the ground around them to prevent the inflow of surface water. After compacting the bottom of the ditch and the surrounding ditch wall, put in the feed with a height of 30 centimeters, and then put in 3000 to 5000 earthworms. Finally, the feed is covered with a layer of weeds and covered with plastic film to prevent the sun and rain. After putting earthworms, spray water regularly to moisturize, feed in the ditch should be replenished in time, and earthworms should be harvested regularly. This method has the advantages of low investment and great effect, and is suitable for supplying animal feed for poultry, fish, soft-shelled turtles and frogs.