A corncob experimental animal bedding and a method for preparing the same

Abstract

The application discloses a corn cob experimental animal bedding and a preparation method thereof, and belongs to the technical field of animal appliances. The corn cob experimental animal bedding is composed of the following raw materials in parts by weight: corn cob 70-100 parts, polyacrylamide 4-8 parts, silica gel powder 1-4 parts, attapulgite 15-35 parts, nano silver particles 4-9 parts, and water 25-40 parts. The application optimizes the formula ratio, ensures that the bedding can still maintain good performance in a humid environment, reduces the generation of peculiar smell, and improves the comfort of experimental animals. The application is significantly better than traditional materials in terms of water absorption, antibacterial property and environmental protection, and provides a more ideal breeding environment for experimental animals. In addition, the preparation method is simple, low in cost, easy for large-scale production, and the raw materials are all environmentally-friendly materials, which meets the sustainable development concept and has a wide market application prospect.

Description

Technical Field

[0001] This invention belongs to the field of animal equipment technology, specifically relating to a corn cob laboratory animal bedding material and its preparation method. Background Technology

[0002] Animal bedding is a key material used in laboratory animal housing environments, designed to provide animals with a comfortable, safe, and suitable living environment. The choice of bedding directly affects animal health and the accuracy of experimental results. With increasingly stringent requirements for laboratory animal welfare and ethics in the scientific research field, the research and application of laboratory animal bedding have gradually gained attention.

[0003] The expanding market for animal supplies has led to a greater variety of animal bedding options, including wood bedding, corn cob bedding, bentonite bedding, paper scrap bedding, and crystal cat litter. These bedding materials all offer advantages such as deodorization, strong absorbency, and pollution-free properties. However, wood bedding is prone to bacterial growth, bentonite bedding is heavy and difficult to clean, paper scrap bedding has poor water absorption, and crystal cat litter is expensive and environmentally unfriendly. Furthermore, existing corn cob bedding, made from natural corn cobs, has a much lower water absorption rate than poplar shavings bedding, which could negatively impact the comfort of laboratory animals and the cleanliness of the breeding environment. Summary of the Invention

[0004] To address the aforementioned problems in the existing technology, the technical problem to be solved by the present invention is to provide a corn cob laboratory animal bedding material, which provides a healthier breeding environment for laboratory animals. Another technical problem to be solved by the present invention is to provide a method for preparing the corn cob laboratory animal bedding material, which is simple in process and easy to mass-produce.

[0005] To solve the above problems, the technical solution adopted by the present invention is as follows:

[0006] A corn cob laboratory animal bedding material is composed of the following raw materials in parts by weight: 70-100 parts corn cob, 4-8 parts polyacrylamide, 1-4 parts silica powder, 15-35 parts attapulgite, 4-9 parts nano silver particles, and 25-40 parts water.

[0007] Preferably, the corn cob experimental animal bedding is composed of the following raw materials in parts by weight: 80-90 parts corn cob, 5-7 parts polyacrylamide, 2-3 parts silica powder, 20-30 parts attapulgite, 5-8 parts nano silver particles, and 29-35 parts water.

[0008] Preferably, the corn cob experimental animal bedding material is composed of the following raw materials in parts by weight: 80-90 parts corn cob, 5-7 parts polyacrylamide, 2-3 parts silica powder, 25-30 parts attapulgite, 5-6 parts nano silver particles, and 29-35 parts water.

[0009] Preferably, the corn cob experimental animal bedding is composed of the following raw materials in parts by weight: 90 parts corn cob, 5 parts polyacrylamide, 2 parts silica powder, 30 parts attapulgite, 5 parts nano silver particles, and 29 parts water.

[0010] Preferably, the diameter of the silver nanoparticles is 40-50 nm.

[0011] Preferably, the specific surface area of ​​the attapulgite is 20~30m². 2 / g, with a particle size of no more than 200 mesh.

[0012] Preferably, the particle size of the polyacrylamide is 30-50 mesh.

[0013] A method for preparing the corn cob laboratory animal bedding includes the following steps:

[0014] 1) Remove dust and perform the first screening on the crushed corn cobs, soak the corn cob particles in water to remove surface residue, drain the water and dry them at 60℃.

[0015] 2) Mix polyacrylamide, silica powder, attapulgite, nano silver particles and water, then add the dried corn cob particles from step 1) and mix to obtain granules;

[0016] 3) Dry the particles from step 2) to a moisture content of no more than 5%, and then perform a second screening to obtain corn cob experimental animal bedding.

[0017] Preferably, in step 1), the particle size of the crushed corn cob is no greater than 8 mm.

[0018] Preferably, in step 2), polyacrylamide, silica powder, attapulgite, and nano silver particles are mixed and then added to water, and the mixture is stirred evenly at a stirring speed of 500 rpm for 30 minutes to obtain a slurry.

[0019] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0020] (1) This invention obtains corn cob experimental animal bedding through formula improvement. Corn cob is the main raw material. By adding polyacrylamide and silica powder, the water absorption rate is significantly improved. Then, it is mixed with attapulgite and nano silver particles to form a composite bedding with high efficiency, antibacterial properties and strong water absorption. This ensures that the bedding remains dry and hygienic during use, effectively improving the quality of life of experimental animals and the reliability of experimental results.

[0021] (2) By optimizing the formula ratio, this invention ensures that the bedding material can maintain good performance in a humid environment, reduce odor generation, and improve the comfort of experimental animals; it is significantly better than traditional materials in terms of water absorption, antibacterial properties and environmental protection, providing a more ideal breeding environment for experimental animals.

[0022] (3) The preparation process of the present invention is simple, low cost, easy to mass-produce, meets environmental protection requirements, reduces waste emissions, is environmentally friendly, and has broad market prospects. Detailed Implementation

[0023] To make the objectives, technical solutions, and advantages of this invention clearer, the invention will be further described below with reference to specific embodiments. Unless otherwise specified, the technical means used in the following embodiments are all conventional means well known to those skilled in the art.

[0024] The corn cobs used in the following examples are white corn cobs from healthy, normally grown corn crops in Shandong Province with a growth period of 90 days. The diameter of the nano-silver particles is 45 nm; the specific surface area of ​​the attapulgite is 30 m². 2 / g, with a particle size of no more than 200 mesh; the particle size of polyacrylamide is 50 mesh; the particle size of silica gel powder is 40 mesh.

[0025] Example 1

[0026] A corn cob laboratory animal bedding material is composed of the following raw materials in parts by weight: 80 parts corn cob, 7 parts polyacrylamide, 3 parts silica powder, 20 parts attapulgite, 5 parts nano silver particles, and 35 parts water.

[0027] The preparation method of corn cob bedding for laboratory animals is as follows:

[0028] 1) Crush the corn cobs to a particle size of less than 8mm, and then use a dust collector to remove dust from the crushed corn cob particles; perform the first screening of the dust-removed corn cob particles to remove impurities and larger particles from the raw materials; then soak the corn cob particles in water to remove surface residues, drain the water and dry them at 60℃ to ensure that the particles are dried evenly.

[0029] 2) After mixing polyacrylamide, silica powder, attapulgite, and nano silver particles, add them to water and mix evenly for 30 minutes at a stirring speed of 500 rpm to obtain a slurry. Mix the obtained slurry thoroughly with the dried corn cob particles to ensure that the surface of the corn cob particles is evenly coated with the slurry to obtain granules.

[0030] 3) Place the particles from step 2) into a desiccator to dry them until the moisture content is below 5%. After drying, perform a second screening to remove particles that are not fully coated or stuck together, ensuring that the particles are of uniform size and free of impurities, and obtain corn cob experimental animal bedding.

[0031] Example 2

[0032] A corn cob laboratory animal bedding material is composed of the following raw materials in parts by weight: 85 parts corn cob, 6 parts polyacrylamide, 2 parts silica powder, 25 parts attapulgite, 6 parts nano-silver particles, and 30 parts water. The specific preparation steps of this corn cob laboratory animal bedding material are exactly the same as those in Example 1, and the corn cob laboratory animal bedding material is obtained.

[0033] Example 3

[0034] A corn cob laboratory animal bedding material is composed of the following raw materials in parts by weight: 90 parts corn cob, 5 parts polyacrylamide, 2 parts silica powder, 20 parts attapulgite, 5 parts nano-silver particles, and 29 parts water. The specific preparation steps of this corn cob laboratory animal bedding material are exactly the same as those in Example 1, and the corn cob laboratory animal bedding material is obtained.

[0035] Example 4

[0036] A corn cob laboratory animal bedding material is composed of the following raw materials in parts by weight: 90 parts corn cob, 5 parts polyacrylamide, 2 parts silica powder, 30 parts attapulgite, 5 parts nano-silver particles, and 29 parts water. The specific preparation steps of this corn cob laboratory animal bedding material are exactly the same as those in Example 1, and the corn cob laboratory animal bedding material is obtained.

[0037] Example 5

[0038] A corn cob laboratory animal bedding material is composed of the following raw materials in parts by weight: 90 parts corn cob, 5 parts polyacrylamide, 2 parts silica powder, 20 parts attapulgite, 8 parts nano-silver particles, and 29 parts water. The specific preparation steps of this corn cob laboratory animal bedding material are exactly the same as those in Example 1, and the corn cob laboratory animal bedding material is obtained.

[0039] Comparative Example 1

[0040] A corn cob laboratory animal bedding material is composed of 90 parts corn cob, 5 parts polyacrylamide, 2 parts silica powder, and 29 parts water. The specific preparation steps of this corn cob laboratory animal bedding material are basically the same as those in Example 1, and the corn cob laboratory animal bedding material is obtained.

[0041] Comparative Example 2

[0042] A corn cob laboratory animal bedding material is composed of 85 parts corn cob, 3 parts silica powder, and 30 parts water. The specific preparation steps of this corn cob laboratory animal bedding material are basically the same as those in Example 1, and the corn cob laboratory animal bedding material is obtained.

[0043] Comparative Example 3

[0044] A corn cob laboratory animal bedding material is composed of 90 parts corn cob, 20 parts attapulgite, 8 parts silver nanoparticles, and 29 parts water. The specific preparation steps of this corn cob laboratory animal bedding material are basically the same as those in Example 1, and the corn cob laboratory animal bedding material is obtained.

[0045] Example 6

[0046] The corn cob animal bedding materials prepared in Examples 1-5 and Comparative Examples 1-3 were tested for water absorption and ammonia adsorption performance. Data were recorded and compared to evaluate the overall performance of each formulation. The results are shown in Table 1. The water absorption test was conducted as follows: the bedding material was placed in a 100mL transparent beaker, soaked in water until saturated, weighed, and the water absorption rate was calculated as: water absorption rate = (total weight after water absorption - weight before water absorption) / volume × 100%. The ammonia adsorption performance test was conducted as follows: 3cm thick corn cob animal bedding material was laid in a guinea pig housing box (930mm long × 616mm wide × 295mm high). Five guinea pigs (21 days old, weighing 156g) were placed in the housing box for two days. On the second day, the guinea pigs, feed box, and water bottle were removed. The housing box was covered with a large plastic bag and sealed, then stored in the rearing room. The ammonia concentration in the plastic bag was measured using a portable ammonia detector at 24 hours.

[0047] Table 1. Performance test results of corn cob experimental animal bedding prepared in Examples 1-5 and Comparative Examples 1-3

[0048]

[0049] As shown in Table 1, the corn cob bedding for laboratory animals prepared in this invention is superior to the comparative example in terms of water absorption and ammonia adsorption performance, exhibiting a higher water absorption rate and a lower ammonia concentration, effectively improving the practicality and environmental friendliness of the bedding, and providing a healthier feeding environment for laboratory animals.

[0050] The above description is merely a preferred embodiment of the present invention and is not intended to limit the invention. Various modifications and variations can be made to the present invention by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the scope of protection of the present invention.

Claims

1. A corn cob laboratory animal bedding material, characterized in that, It is composed of the following raw materials in parts by weight: 90 parts corn cob, 5 parts polyacrylamide, 2 parts silica gel powder, 30 parts attapulgite, 5 parts silver nanoparticles, and 29 parts water; the diameter of the silver nanoparticles is 40-50 nm; the specific surface area of ​​the attapulgite is 20-30 m². 2 / g, with a particle size of no more than 200 mesh; the polyacrylamide has a particle size of 30-50 mesh; the corn cob experimental animal bedding is prepared by the following steps: 1) Remove dust and perform the first screening on the crushed corn cobs, soak the corn cob particles in water to remove surface residue, drain the water and dry them at 60℃. 2) Mix polyacrylamide, silica powder, attapulgite, nano silver particles and water, then add the dried corn cob particles from step 1) and mix to obtain granules; 3) Dry the particles from step 2) to a moisture content of no more than 5%, and then perform a second screening to obtain corn cob experimental animal bedding.

2. A method for preparing the corn cob experimental animal bedding as described in claim 1, characterized in that, Includes the following steps: 1) The crushed corn cobs are dusted and screened for the first time. The corn cob particles are soaked in water to remove surface residues. After draining the water, they are dried at 60℃. The particle size of the crushed corn cobs is no more than 8mm. 2) Mix polyacrylamide, silica powder, attapulgite, nano silver particles and water, then add the dried corn cob particles from step 1) and mix to obtain granules; 3) Dry the particles from step 2) to a moisture content of no more than 5%, and then perform a second screening to obtain corn cob experimental animal bedding. In step 2), polyacrylamide, silica powder, attapulgite, and nano silver particles are mixed and then added to water. The mixture is stirred at 500 rpm for 30 minutes to obtain a slurry.

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