12 results about "Macrobrachium rosenbergii" patented technology

This utility model relates to the technical field of water temperature automatic control devices, specifically a rapid-acting water temperature automatic control device for the breeding of giant freshwater prawns. It includes a shell and a temperature control mechanism housed inside the shell. The temperature control mechanism includes heating plates installed on the inner walls of both sides of the bottom of the shell. A bottom pipe is fixedly connected to the inner wall of the bottom of the shell, and a top pipe is fixedly connected to the inner wall of the top of the shell. A waterproof shell is provided on the inner wall of the top of the bottom pipe. A dual-head motor is installed on the inner wall of the waterproof shell. A rotating rod is fixedly connected to the outer wall of the top of the dual-head motor, and a rotating rod is fixedly connected to the outer wall of the bottom of the dual-head motor. An output pipe is fixedly connected to the inner wall of the bottom of the bottom pipe. This utility model's spiral structure, combined with the pipes, can stably deliver water into the shell for heating. Furthermore, the height difference between the through-hole and the output pipe increases the water flow path, further enhancing the heating effect and improving the efficiency of the rapid-acting water temperature automatic control device.

The present invention provides a use of allicin E for preventing and treating Vibrio parahemolyticus infection in giant freshwater prawns, comprising the step of: adding a compound as shown in formula (I) to giant freshwater prawn feed. This can improve Vibrio parahemolyticus infection in giant freshwater prawns, reduce the mortality rate of giant freshwater prawns, and reduce the threat to food and environmental safety caused by long-term use of antibiotics.

The invention belongs to the technical field of animal models, and relates to a double-stranded RNA and a method for constructing a peritrophic membrane damaged macrobrachium rosenbergii animal model by using the same. The double-stranded RNA enables the chitin synthetic protein gene to be silenced after transcription, the coding sequence of the chitin synthetic protein gene is shown as SEQ ID NO.2, and the amino acid sequence of the chitin synthetic protein coded by the double-stranded RNA is shown as SEQ ID NO.3. According to the present invention, after the double-stranded RNA prepared by using the preparation method is introduced into the macrobrachium rosenbergii body, the chitin synthetic protein gene of the macrobrachium rosenbergii can be transcribed and silenced, such that the peritrophic membrane injury macrobrachium rosenbergii animal model can be constructed, and the peritrophic membrane injury macrobrachium rosenbergii animal model can be used for disease control research, microecological preparation development and / or molecular assisted breeding.

This invention belongs to the field of aquaculture technology, specifically relating to a biomass ash, its preparation method, and its application. The biomass ash is the ash obtained after burning biomass raw materials, containing phosphate ions, potassium ions, copper ions, manganese ions, iron ions, zinc ions, magnesium ions, and calcium ions. The preparation method of the biomass ash includes air-drying, pulverizing, and granulating the biomass raw materials, then burning them at 600–800 °C for 60–120 minutes under oxygen-supplied conditions, followed by sieving to obtain the biomass ash. This biomass ash is placed in permeable bags and suspended in the water body for giant freshwater prawn farming to achieve slow ion release; it can also be used in conjunction with quicklime during the pond drying stage to establish a two-stage mineralization system. This invention can achieve a comprehensive, continuous, and stable replenishment of multiple ions in the water body, effectively improving the molting success rate of giant freshwater prawns and realizing the resource utilization of waste.

This invention relates to a cracker composition made from cassava (Manihot esculenta), carrot (Daucus carota) and dried shrimp (Macrobranchium rosenbergii). The cracker composition consists of, based on the total weight of the dough ingredients before cooking, 50% by weight of cassava (Manihot esculenta), 15% by weight of carrot (Daucus carota), 5% by weight of dried shrimp (Macrobranchium rosenbergii), 15% by weight of tapioca flour, 2% by weight of garlic powder, 1% by weight of coriander powder, 1% by weight of chili powder, 2% by weight of spring onion, 1% by weight of salt, 8% by weight of cooking oil. The composition is made without the addition of monosodium glutamate (MSG). This invention provides a seafood-based meatball composition that can be applied in the food industry.

The invention discloses a model analysis-based macrobrachium rosenbergii non-molting period behavior discrimination and culture method. The method comprises the following steps: setting a three-dimensional culture model and monitoring points according to culture space and quantity; the method comprises the following steps: acquiring a culture image set and water environment parameters through a monitoring unit, identifying a target group by using a yov5 model, evaluating color feature differences, judging the proportion of shrimps in an ecdysis period, and setting a PIT marking scheme; analyzing target behavior characteristics, and generating characteristic data in combination with the water environment parameters; a self-encoder is introduced for dimension reduction, and features and periodic time periods are divided through SVN model dichotomy; the group activity probability is analyzed according to the time period feature data, and the path cost is set; and finally, predicting group activity migration in an ecdysis period and a non-ecdysis period by using a three-dimensional A * shortest path algorithm, and formulating a breeding isolation scheme to realize precise breeding management.

The invention relates to the field of bioinformatics and genome assembly quality control, in particular to a macrobrachium rosenbergii reference genome structure error correction and quality evaluation method and system. The method comprises the following steps: acquiring a primary assembly sequence and Hi-C data, and constructing a contact matrix and an interaction heat map; and identifying false split sites according to end cross-boundary continuous diagonal interaction, identifying inversion and other topological errors according to bowknot-shaped interaction, and executing merging, splitting and / or redirection to obtain candidate genomes. Global LAI before and after error correction and local LAI with an error correction breakpoint / section as the center are calculated respectively, and combined judgment is carried out by combining BUSCO integrity and a consistency threshold outside the error correction section; and outputting a final reference genome when the global LAI is increased and the local LAI is not reduced and the constraint is met, otherwise, rolling back and replacing error correction. According to the scheme, structure-sequence dual verification is realized, the excessive assembly risk is reduced, and the assembly quality of the repetitive sequence region is improved.

The utility model discloses a biomimetic nest for macrobrachium culture, and relates to the technical field of macrobrachium culture, the biomimetic nest for macrobrachium culture comprises an elastic bandage, a plurality of biomimetic modules are arranged inside the elastic bandage, and the biomimetic modules are bound and fixed through the elastic bandage. The bionic module comprises a fixing assembly and pipe bodies, one fixing assembly corresponds to four pipe bodies, the four pipe bodies are located on the periphery of the fixing assembly, the fixing assembly comprises a center base, connecting arms are arranged on the peripheral surface of the center base, fixing frames are arranged at one ends of the connecting arms in a hot melting mode, and the fixing frames are connected with the fixing assemblies in a hot melting mode. By means of the scheme, the problems that when existing macrobrachium rosenbergii is bred, due to the fact that the macrobrachium rosenbergii is prone to being stacked together, the macrobrachium rosenbergii fight with one another, the macrobrachium rosenbergii eats silkworm after shelling, the death rate is high, and the breeding effect is poor are solved.

The invention discloses a method for detecting beta-glucuronidase to evaluate the ability of shrimps to resist a decapod iridovirus type 1, and belongs to the technical field of biological breeding of aquatic animals. The method comprises the following steps: detecting beta-glucuronidase in a sample by qPCR (quantitative polymerase chain reaction) to obtain a 2-delta delta Ct value of the beta-glucuronidase, and evaluating the anti-decapod iridovirus type 1 capability of the shrimps according to the 2-delta delta Ct value, when the 2-delta delta Ct is less than or equal to 0.15, the resistance is evaluated to be high, when the 2-delta delta Ct is more than 0.15 and less than 0.45, the resistance is evaluated to be medium, and when the 2-delta delta Ct is more than or equal to 0.45, the resistance is evaluated to be susceptible. And through experimental verification, the prediction accuracy of unknown sample verification is more than 86.7%, and the AUC area of the ROC curve is 0.8864. In conclusion, the invention provides a standardized and operable evaluation method for macrobrachium rosenbergii disease-resistant molecular breeding.

The application belongs to the processing technical field of macrobrachium rosenbergii, and particularly relates to a steaming device for processing macrobrachium rosenbergii, which comprises a steaming assembly and a lifting assembly. The steaming assembly comprises a processing box body, a top cover is slidably installed at the top end of the processing box body, a control panel and a drain port are fixedly installed on one side of the processing box body, a heating mechanism is arranged in the processing box body, a first air ventilation placing plate is slidably installed on the inner wall of the processing box body, a turnover assembly that makes the steaming of macrobrachium rosenbergii more uniform is arranged at the top end of the first air ventilation placing plate, and first connecting blocks are fixedly installed on the two sides of the first air ventilation placing plate. Through the arrangement of the turnover assembly, after the steaming and processing of macrobrachium rosenbergii for a period of time, the problem that the heating conditions of macrobrachium rosenbergii close to the top end and macrobrachium rosenbergii close to the bottom end are greatly different is avoided, the steaming effect of macrobrachium rosenbergii is improved, and thus the product quality of macrobrachium rosenbergii is improved.

The application discloses a kind of molecular marker selection methods for Macrobrachium rosenbergii anti-DIV1 breeding, it is related to molecular marker technical field, by standardizing the process of challenge test, Macrobrachium rosenbergii population is infected with virus, subjective health state is judged into objective survival time data, muscle tissue sample is collected, high-quality genomic DNA is obtained by ethanol fixation and kit extraction, the sample and information transmission chain from phenotype to genotype is established, whole genome association analysis is carried out by mixed linear model, the correlation degree of SNP and character and site effect value are calculated, and a kind of 31 SNP molecular marker combinations significantly related to anti-DIV1 character is screened, and precise genotyping is realized by PCR amplification and Sanger sequencing, and then individual disease-resistant breeding value is estimated, which can assist Macrobrachium rosenbergii anti-DIV1 breeding, and solve the problem that it is difficult to cultivate Macrobrachium rosenbergii anti-DIV1 variety in production practice.

The application discloses an automatic packing machine for selling macrobrachium rosenbergii fry and a use method thereof, which comprises a base, a supporting rod fixedly connected to the middle of the top end of the base, and a top plate fixedly connected to the top end of the supporting rod; a rotating support assembly, which comprises a rotating table and a support piece, the rotating table being rotationally connected to the supporting rod and located below the top plate, and the support piece being arranged on the rotating table and used for placing a bagging barrel; a packing assembly, which comprises a closing piece and an injection piece, the closing piece and the injection piece being arranged on the outer sidewall and the top end of the top plate respectively, and the closing piece and the injection piece being located above the support piece and arranged correspondingly with the bagging barrel respectively; and a control assembly arranged on the top end of the top plate, the rotating table, the support piece, the closing piece and the injection piece being electrically connected with the control assembly respectively. The application realizes continuous operation, constant water and air filling amount, solid sealing, and significantly reduces manual consumption.