8 results about "Antheraea pernyi" patented technology

The invention provides an antheraea pernyi fresh-keeping method which comprises the following steps: S1, dividing a first group and a second group with different freezing response characteristics according to development biological characteristics of antheraea pernyi; the freezing response characteristic is represented by at least one parameter of tissue moisture content, methylene blue penetration depth and body wall elasticity modulus; s2, differential preprocessing is applied to the first group and the second group, so that the difference of the first group and the second group on any characterization parameter does not exceed a preset threshold value; s3, combining the two groups of tussah and freezing; in the first cooling stage, cooling from 0-1 DEG C to-10 DEG C at the speed of 0.8-1.2 DEG C / min; in the second cooling stage, cooling is conducted from-10 DEG C to-30 DEG C at the speed of 0.45-0.55 DEG C / min; in the third cooling stage, cooling from-30 DEG C to-45 DEG C at the speed of 1.8-2 DEG C / min; and S4, after freezing is completed, vacuum packaging is performed, and storage is performed at minus 45-minus 40 DEG C. According to the fresh-keeping method for the tussah, the integrity of a cell structure is maintained, juice loss is reduced, and abnormal release of endogenous enzyme is inhibited, so that nutritional ingredients are better reserved in the long-term freezing storage process, and the sensory characteristics of compact meat, uniform color and luster and no peculiar smell are maintained.

This utility model relates to an automatic unwinding device for live tussah silkworm pupae, including an unwinding liquid tank. A drive motor is installed at one end of the unwinding liquid tank, and the output shaft of the drive motor extends into the device housing and connects to a roller. Multiple first leakage holes are opened on the surface of one end of the roller, and multiple cocoon-filling grids are opened on the surface of the roller. Fresh tussah silkworm cocoons are loaded into the cocoon-filling grids on the surface of the roller. This utility model has the ability to operate stably in low temperature and normal pressure environments, can automatically achieve constant temperature control, and can automatically rotate to allow fresh tussah silkworm cocoons to enter and exit the low temperature alkaline unwinding liquid, thereby ensuring that the pupae inside the cocoons can obtain sufficient oxygen supply. Its heating has a temperature control function, which can effectively ensure the unwinding effect of the alkaline solution. In addition, it is more flexible and mobile, improving production efficiency and reducing resource waste while having lower requirements for working environment conditions.

The utility model discloses a tussah cordyceps militaris liquid strain inoculation device, and relates to the technical field of cordyceps militaris cultivation, the tussah cordyceps militaris liquid strain inoculation device comprises a tussah pupa inoculation platform assembly, the tussah pupa inoculation platform assembly comprises a first motor, the output end of the first motor is fixedly connected with a first gear, and the side of the first gear is engaged with a rotating platform; a platform base is connected to the bottom of the rotating platform in a clamped mode, auxiliary balls are arranged in the platform base, a positioning magnet is fixedly connected to the top of the rotating platform, an elastic belt is arranged on the side of the positioning magnet, and a fixed magnet is fixedly connected to the outer wall of the elastic belt; a liquid strain mixing assembly is arranged on the side of the platform base, and a tussah pupa inoculation assembly is installed on the other side of the liquid strain mixing assembly. By means of the device, tussah pupae can be conveniently fixed, the angle of the tussah pupae can be conveniently adjusted, inoculation of the designated position of the tussah pupae is facilitated, liquid strains can be conveniently and fully mixed, and uniform inoculation of the liquid strains is guaranteed.

The invention provides an LAMP (loop-mediated isothermal amplification) primer group for detecting antheraea pernyi, a detection method and application, and belongs to the technical field of pathogenic microorganism detection. The LAMP primer group is designed according to a plurality of regions of a target gene spore wall protein NpSWP13 DNA sequence, so that only a target sequence can be effectively amplified. According to the LAMP detection method, the nosema antheraeae can be effectively distinguished from other tussah diseases, the nosema antheraeae with extremely low content can be detected, the LAMP detection method has extremely high sensitivity, only a constant-temperature water bath kettle or other constant-temperature equipment is needed during detection, an expensive PCR instrument is not needed, the operation is simple, a result can be obtained by reacting for 60 minutes at the constant temperature of 65 DEG C, and the method is suitable for large-scale popularization and application. The detection result is visual and can be directly judged by naked eyes. In addition, the invention is of great significance to centralized quarantine of antheraea pernyi pebrine and germplasm resource protection in the antheraea pernyi industry.

The present application belongs to the technical field of biological genetic engineering, and specifically discloses a method for excavating a gene associated with the body color trait of a tussock moth larva, constructing a tussock moth body color trait analysis population, and counting the body color trait phenotype value of the tussock moth body color trait analysis population; based on the Super-GBS technology, SNP markers are developed and typed at the whole genome level for tussock moth materials of the tussock moth body color trait analysis population, and a genetic linkage map is drawn; the body color trait is positioned by QTL using the genetic linkage map, the corresponding linkage group physical position of the body color trait is obtained, and the body color trait GWAS analysis is simultaneously carried out; according to the gene information obtained from the two methods, the associated regions are compared with a database and annotated, and candidate genes of the body color trait of the tussock moth larva are excavated. The present application obtains relevant gene information by the two methods of QTL and GWAS, compares the information with a database and annotates the information, and excavates candidate genes of the body color trait of the tussock moth, so that the candidate genes of the body color trait of the tussock moth at the whole genome level are effectively and accurately realized.

The invention provides a repellent for natural enemy insects. The repellent comprises an active substance 2-ethyl-1-hexanol. The concentration of the active substance is at least 1 mu g / mu L; the active substance is derived from resource insect female mucilage gland secretions with a repelling effect on natural enemy insects, and the resource insect female mucilage gland secretions cover the self-oviposition surface of the resource insects. The invention also provides an application of the repellent. The repellent is used for repelling natural enemy insects with parasitic ability to non-adult resource insects. The natural enemy insects comprise hymenoptera insects; the resource insects comprise tussah, silkworms and castor silkworms. Applying the repellent of the natural enemy insects to the non-adult surfaces of the resource insects or to the growth environment of the resource insects. According to the invention, 2-ethyl-1-hexanol is used as an active substance to prevent parasitic wasps from parasitizing various resource insects, so that the technical purpose of effectively, safely and efficiently preventing and controlling the parasitic wasps is achieved, the economic benefit of the resource insects is improved, and the insecticide has the advantages of greenness, environmental protection and low toxicity.

1. Name of the product in this design: Packaging Box (Tussah Silkworm Moth Anti-aging Soap). 2. Purpose of this design: Packaging box. 3. The key design features of this product are the combination of shape and pattern. 4. The image or photograph that best illustrates the design's key points: the front view.

The utility model relates to silkworm pupa sorting technical field discloses a tussah pupa grading screening device, include: operation platform, bottom is provided with liftable support leg, one end is provided with dump storage area, the other end is provided with screening area, the screening area bottom is divided into stationary storage area, small -size collection area, medium -sized collection area and large -size collection area in proper order, the screening area bottom is provided with detachable collection subassembly, and the device forms dynamic screening interface through the inclined table top design and movable gap adjusting roller, and the gap adjusting roller continues to rotate and drives silkworm pupa even to turn over, and the operator can carry out multi -angle observation to silkworm pupa on the side, effectively avoid the visual blind area in traditional static screening, and the design of detachable side wing slide way board can throw the unqualified product to the fixed collection mouth at will, reduces invalid moving time, and significantly improves artificial picking efficiency and accuracy.