CN-121970727-A - Efficient breeding technology for promoting rapid growth and propagation of earthworms

CN121970727ACN 121970727 ACN121970727 ACN 121970727ACN-121970727-A

Abstract

The application relates to the technical field of earthworm breeding and biomass recycling, and discloses a high-efficiency breeding technology for promoting rapid growth and reproduction of earthworms, which comprises the steps of providing corn deep processing byproducts, and performing material modification treatment on the corn deep processing byproducts to prepare a feed additive; providing cow dung, and performing high-temperature composting treatment on the cow dung to prepare the basic feed. The application adopts deionized water and corn amino acid concentrate to execute mixing operation according to the preset dilution ratio, and sodium bicarbonate is added to strictly regulate the pH value of the amino acid concentrate diluent to a preset acid-base buffer zone, so that the feed additive thoroughly eliminating the high-concentration industrial waste liquid hypertonic stress and maintaining the microecological acid-base balance is obtained. The feed additive overcomes the defects of high fiber content and insufficient protein of cow dung under the grazing condition, ensures that the targeted earthworm used as a seedling can be inoculated to timely supplement essential amino acid for growth, and promotes rapid growth and propagation of the earthworm.

Inventors

WANG YAN
Na Rina
SUO LIMO
ZHAO JIANPING
WANG YINGDA
WANG SHENGNAN
DENG YU
RONG DI
WU RENTUYA
LI WENWEN
LI XIAORU
GAO ZHIHUI
YU HUANHUAN

Assignees

赤峰市农牧科学院

Dates

Publication Date: 20260505
Application Date: 20260317

Claims (10)

1. The efficient breeding technology for promoting the rapid growth and propagation of earthworms is characterized by comprising the following steps of: S1, providing a corn deep processing byproduct, and performing material modification treatment on the corn deep processing byproduct to prepare a feed additive, wherein the corn deep processing byproduct comprises corn amino acid concentrate or amino acid sludge; s2, providing cow dung, and performing high-temperature composting treatment on the cow dung to prepare a basic feed; s3, performing physical mixing operation on the basic feed and the feed additive to prepare a mixed material; S4, adjusting the water content and the pH value of the mixed material to a preset physical and chemical interval, and performing stacking decomposition operation on the mixed material in the preset physical and chemical interval to prepare the efficient earthworm breeding composite matrix; S5, paving the efficient earthworm breeding composite matrix in a breeding space, inoculating targeted earthworm adult used as a seedling into the efficient earthworm breeding composite matrix, and executing bioconversion breeding operation.
2. The efficient breeding technology for promoting rapid growth and reproduction of earthworms according to claim 1, wherein in the step S1, deionized water is provided when the corn deep processing byproducts are corn amino acid concentrate, the corn amino acid concentrate and the deionized water are mixed according to a preset dilution ratio to prepare amino acid concentrate diluent, baking soda is provided, the baking soda is added into the amino acid concentrate diluent to serve as an acid-base regulator, and the pH value of the amino acid concentrate diluent is regulated to a preset acid-base buffer zone to prepare the liquid feed additive.
3. The efficient breeding technology for promoting rapid growth and reproduction of earthworms according to claim 1, wherein in the step S1, the numerical range of the preset dilution ratio is defined to be 10 times to 400 times, the preset acid-base buffer interval is defined to be pH 6.5 to 7.5, and the step of mixing the corn amino acid concentrate with deionized water according to the preset dilution ratio specifically comprises the step of stirring the mixed liquid at a rotating speed of 150r/min to 250r/min for 20 minutes to 40 minutes in a room temperature environment.
4. The efficient breeding technology for promoting rapid growth and reproduction of earthworms according to claim 1, wherein in S1, the numerical range of the preset dilution ratio is 80-120 times.
5. The efficient breeding technology for promoting rapid growth and reproduction of earthworms according to claim 1, wherein in the step S1, when the corn deep processing byproducts are the amino acid sludge, physical mechanical crushing operation is carried out on the amino acid sludge until the amino acid sludge is in a powdery form, so that the solid feed additive is prepared.
6. An efficient breeding technique for promoting rapid growth and reproduction of earthworms according to claim 1, characterized in that in S2, the heap temperature of the high-temperature composting treatment is controlled to be in the range of 55 ℃ to 65 ℃ and the duration of the high-temperature composting treatment is maintained for 7 days to 15 days.
7. The efficient breeding technique for promoting the rapid growth and reproduction of earthworms according to claim 1, characterized in that in S3, the physical mixing operation is performed by mixing the basic feed with a liquid feed additive in a mass ratio of 90:10 to 98:2.
8. The efficient breeding technology for promoting the rapid growth and reproduction of earthworms according to claim 1, characterized in that in the step S3, the input raw materials for performing the physical mixing operation further comprise crushed straws with the length of 2cm to 3cm, and the physical mixing operation is performed by the base feed, the solid feed additive and the straws according to the mass percentages of 25% to 75% of the base feed, 25% to 75% of the solid feed additive and 0% to 25% of the straws.
9. The efficient breeding technology for promoting rapid growth and reproduction of earthworms according to claim 1, characterized in that in the step S4, the water content of the mixed material is precisely adjusted to be 65-75%, the pH value of the mixed material is precisely adjusted to be 6.5-7.5, and the duration of the stacking decomposition operation is maintained to be 20-30 hours.
10. An efficient earthworm breeding technique for promoting rapid growth and reproduction of earthworms according to claim 1, characterized in that in S5, the targeted earthworms used as seedlings are adult earthworms of Eisenia foetida, the efficient earthworm breeding composite matrix with a thickness of 8cm to 12cm is laid in the breeding space, the adult earthworms of Eisenia foetida are inoculated into the efficient earthworm breeding composite matrix according to an inoculation density of 1.5kg to 2.0kg per prolonged meter, a preset breeding period for executing the bioconversion breeding operation is set to 80 days to 100 days, an environmental temperature of the breeding space is controlled to be 20 ℃ to 25 ℃ within the preset breeding period, relative humidity is controlled to be 60% to 80% and a ventilation state is maintained, a flipping operation is executed on the efficient earthworm breeding composite matrix 1 to 2 times daily, and an operation for supplementing the efficient earthworm breeding composite matrix 1 time every 7 days to 14 days is executed to maintain the thickness within the range of 8cm to 12 cm.

Description

Efficient breeding technology for promoting rapid growth and propagation of earthworms Technical Field The application relates to the technical field of earthworm breeding and biomass resource utilization, in particular to a high-efficiency breeding technology for promoting rapid growth and reproduction of earthworms. Background The earthworm cultivation is used as a core way for realizing the recycling and harmless conversion of agricultural and industrial organic wastes, and the technical key is to maximize the biomass output of earthworms by constructing an excellent substrate environment. In order to break through the technical bottleneck of insufficient nutrition density in the traditional pure manure cultivation mode and deeply solve the problem of recycling industrial waste, currently, high-nutrition byproducts such as amino acid concentrate or amino acid filter mud generated by deep processing of corn are generally tried to be introduced into a basic substrate, and the high-value nutrition source of far more than conventional cow manure is expected to be provided for earthworms. However, existing addition processes often lack targeted pretreatment of the physicochemical properties of the industrial byproducts. Although the original purpose is to increase nutrition, the problems of extremely high salt osmotic pressure in high-concentration organic byproducts and acid-base unbalance in the biodegradation process cannot be effectively solved, so that the nutrient-rich culture medium is extremely easy to generate hypertonic stress and acid toxicity accumulation in practical application, and the problems of low inoculation survival rate and remarkably reduced breeding efficiency in the middle and later stages of growth caused by physiological damage of the targeted earthworm used as a seedling are caused. Disclosure of Invention Aims to solve the technical problems that the substrate microenvironment is deteriorated and the growth and propagation of earthworms are inhibited due to high osmotic pressure stress and acid-base unbalance in the process of breeding and utilizing earthworms by using corn deep processing byproducts. The application provides a high-efficiency breeding technology for promoting earthworms to grow and reproduce rapidly. The application provides a high-efficiency breeding technology for promoting earthworms to grow and reproduce rapidly, which adopts the following technical scheme: S1, providing a corn deep processing byproduct, and performing material modification treatment on the corn deep processing byproduct to prepare a feed additive, wherein the corn deep processing byproduct comprises corn amino acid concentrate or amino acid sludge; s2, providing cow dung, and performing high-temperature composting treatment on the cow dung to prepare a basic feed; s3, performing physical mixing operation on the basic feed and the feed additive to prepare a mixed material; S4, adjusting the water content and the pH value of the mixed material to a preset physical and chemical interval, and performing stacking decomposition operation on the mixed material in the preset physical and chemical interval to prepare the efficient earthworm breeding composite matrix; S5, paving the efficient earthworm breeding composite matrix in a breeding space, inoculating targeted earthworm adult used as a seedling into the efficient earthworm breeding composite matrix, and executing bioconversion breeding operation. By adopting the technical scheme, the feed additive is prepared by carrying out material modification treatment on the corn deep processing byproducts, the basal feed is prepared by carrying out high-temperature composting treatment on the cow dung, and the stacking and decomposing operation for adjusting the water content and the pH value is carried out on the mixed materials, so that the defects of matrix mud and microecological unbalance are overcome, the targeted earthworm adult hypertonic poisoning death used as a seedling is avoided, and the technical effects of weight increment and reproductive rate are greatly improved. Preferably, in the step S1, when the corn deep processing byproduct is the corn amino acid concentrate, deionized water is provided, the corn amino acid concentrate and the deionized water are mixed according to a preset dilution ratio to prepare an amino acid concentrate diluent, sodium bicarbonate is provided, the sodium bicarbonate is added into the amino acid concentrate diluent to serve as an acid-base regulator, and the pH value of the amino acid concentrate diluent is regulated to a preset acid-base buffer zone to prepare the liquid feed additive. By adopting the technical scheme, the deionized water is adopted to dilute the corn amino acid concentrate according to the preset dilution ratio, and the sodium bicarbonate is adopted to adjust the pH value of the amino acid concentrate diluent, so that the liquid feed additive is prepared, and the defects of improving matrix