Preparation method of earthworm cultivation substrate

Abstract

The invention relates to a preparation method of an earthworm cultivation substrate. The earthworm cultivation substrate is prepared by carrying out anaerobic fermentation on a mixture of any two or more of pig manure, flour weevil faece, straw powder, bran powder, saw powder and leaf powder by using a fermentative strain. According to the preparation method disclosed by the invention, pig manure, flour weevil faece and straw wastes are utilized simultaneously; therefore, the environment can be prevented from being polluted; by means of addition of flour weevil faece and pig manure, the dryness and the humidity of a fermentation matrix are easy to adjust; collaborative slaking is faster while fermenting; the growth speed of earthworms is higher; and thus, the preparation method accords with the requirements of constructing new rural development circulation economy.

Description

technical field [0001] The invention belongs to a breeding feed, and in particular relates to a preparation method of an earthworm breeding substrate. Background technique [0002] Earthworm breeding technology is relatively mature at home and abroad, the success of earthworm farming and the quality of feed production play a key role. In the rural suburbs, the manure from pig farms is basically not treated, which is easy to pollute the environment. The breeding process of Tenebrio molitor also produces a large amount of insect feces. The digestive tract of Tenebrio molitor is short and the digestion of feed is not complete. The insect excrement produced also contains a lot of nutrients, and its protein is as high as 20%. The feces of Tenebrio molitor are extremely dry, contain almost no moisture, have no peculiar smell, and the feces are fine and thin, so it is also called sand dung (or called dung sand), which is very convenient for transportation. Raising earthworms with...

AI Technical Summary

Problems solved by technology

[0003] Patent No. CN102442752A discloses "a method of utilizing earthworms to process pig manure". Because there is no incomplete treatment of pig manure and a long time, this method not only uses pig manure, but also uses Tenebrio molitor manure, and speeds up the fermentation time, which can minimize the pollution of the farm to the surrounding environment

Patent No. CN 101791068 B A method for preparing a decomposed cow dung culture medium for breeding earthworms. This method directly uses fermentation strains, and does not carry out activation and expansion of strains, and the fermentation effect may be affected.

And because it is a single raw material of cow dung, without adding other combined raw materials, the nutrients required by earthworms must be adjusted again, which increases the complexity of the process