Rearing earthworms can be easy if one pays attention. For instance, the only requirements are wooden boxes and a dark place to keep the boxes in order to prevent predators.
Conditions to consider
Earthworms are night feeders. They also thrive in moistened, damp conditions. Get a wooden box of any size depending on the size of the room.
Add soil. Pick a handful of soil from an area where you expect the earthworms as seeds and put it in the boxes.
These will act as eggs to enable multiplication or reproduction. On top of the soil in the box, add rotten peelings or anything decomposable to feed the earthworms. Pour water. This is all done in order to imitate the conditions suitable for the worms.
Since they are kept in the dark, they are usually attacked by rats, termites and red ants. So to prevent this, one needs to put the boxes on a higher ground with a wire mesh covering it.
Feeding the earthworms
Unlike other farming activities, rearing earthworms requires rotten substances that can decompose easily once they are on top of the soil in the box where the earthworms are kept.
Harvesting period
The earthworms usually take three months before harvesting. They are harvested when they are of a size of the little finger.
A 3×3 feet box can produce as many as 10kg every six months. This is enough to mix at least 50kg of maize bran.
Production increases depending on the number of boxes a farmer is keeping.