10 results about "Macrobrachium nipponense" patented technology

The invention discloses dsRNA for targeted regulation of a freshwater shrimp PKA-R1 gene and an obtaining method and application of the dsRNA, and belongs to the technical field of biology.Firstly, the freshwater shrimp PKA-R1 gene is obtained, then a gene segment with the sequence of SEQ ID NO: 3 is obtained through RNA interference and other technologies, dsPKA-R1 is synthesized through the gene segment, and after the synthesized dsPKA-R1 is injected into the pericardial cavity of a freshwater shrimp, it is proved that the dsPKA-R1 can slow down growth of the freshwater shrimp through growth parameter comparison.

This invention belongs to the field of shrimp farming technology and discloses an AIoT-driven ecological coupling method for whole-field flat-culture of fruit and shrimp. The method divides the fruit and flower crop planting area into multiple flat-culture units and establishes unit relationships. Under basic flat-culture management conditions, crop impact data, shallow water environment data, bottom load data, and shrimp activity data are collected to establish historical baseline states for each flat-culture unit. During the flat-culture process, current data is collected to form plant impact state, shallow water environment state, bottom load state, and shrimp response state, and a current ecological state chain is constructed. Based on the comparison results between the current ecological state chain and the historical baseline state, abnormal relationships are identified, and target flat-culture units, associated flat-culture units, and dominant abnormal links are determined. A local zonal control scheme is generated and executed. After control, a retested ecological state chain is formed, and recovery conditions are determined, dominant abnormal links are corrected, or the control level is increased accordingly.

1. Name of the designed product: packing box (Macrobrachium Nipponense). 2. Use of the designed product: for food packing. 3. Design points of the designed product: combination of shape and pattern. 4. Picture or photo showing the design points: perspective view.

The utility model relates to the field of biological bait incubation, and discloses a culture tank suitable for fairy shrimps, which comprises a tank body, a culture cavity used for containing the fairy shrimps is arranged in the tank body, and tank body scales used for measuring the liquid level height in the culture cavity are arranged on the side face of the tank body. A branch pipe communicated with the breeding cavity is installed on the outer side of the tank body, and an oxygenation pump used for supplying oxygen into the breeding cavity is installed at the tail end of the branch pipe. The measuring scales are additionally arranged on the tank body, so that the culture accuracy can be improved, a culturist can accurately add or replace a water body, and the stability and suitability of the water quality are ensured; according to the number of the fairy shrimps specifically needed by the experiment, the fairy shrimp eggs needing to be hatched and the needed amount of water can be quantitatively selected, and experiment waste is reduced; meanwhile, by observing the water level change, the feeding amount of the bait can be mastered more easily, and waste and pollution are avoided.

The invention discloses a penaeus monodon cultivation management method and system suitable for industrial aquaculture, and belongs to the field of aquaculture intelligent management, and the method specifically comprises the steps: collecting environment parameters and penaeus monodon activity data in real time through a water quality sensor and a camera unit in a plurality of penaeus monodon cultivation cycles; performing regional clustering and grouping based on regional environment parameter change analysis and breeding density statistics to form a plurality of regional clusters; performing multivariate linear fitting and long-short period feature analysis on the breeding environment parameters and density of the regional cluster to generate an environment-density association record table, and constructing a decision tree prediction model according to the association table; real-time environment data is imported into the model to predict the breeding density, prawn activity migration prediction is carried out, and then the breeding environment is regulated and controlled. According to the method, the problems of single environment monitoring dimension and lack of multi-parameter coupling and culture density prediction analysis in traditional prawn culture are solved, the problem of decision hysteresis is solved, and the culture efficiency is effectively improved.

Outdoor soil pond type culture of the brine shrimps is limited by seasons and the like, indoor factory pond culture is not influenced by seasons, and pond heating and oxygen pumping greatly increase the cost of culturing the brine shrimps. The method for breeding the brine shrimps can solve the problems of high cost, low yield, breeding region and season limitation and the like of breeding the brine shrimps.

The invention relates to the technical field of seedling raising, in particular to a method for increasing the survival rate of zoeae of macrobrachium nipponensis based on bacterium-membrane synergy, which comprises the following steps: S1, placing a porous carrier in a water body, and carrying out membrane hanging operation for 10-16 days to obtain a porous carrier loaded with microorganisms; s2, putting the porous carrier loaded with the microorganisms into a seedling culture device, putting macrobrachium nipponense seedlings into the seedling culture device, and performing water quality management and temperature control; s3, feeding different baits to different growth stages of the macrobrachium nipponensis larvae, and adding auxiliary materials. When macrobrachium nipponensis breeding is carried out, according to zoeae habit changes, the water quality can be remarkably improved, the stress resistance of the zoeae is enhanced, and the survival rate of breeding is increased by adopting the modes of porous biofilm culturing, bait feeding changing and the like.

The present application relates to a kind of low-salt pond engineering culture method of Macrobrachium Nipponense.The present application is in hard bottom soil pond in early stage of Macrobrachium Nipponense high-density intensive culture, avoid the disease period of early growth of Macrobrachium Nipponense, improve the growth stress resistance of prawn.Afterwards, with the growth of Macrobrachium Nipponense, its living space is gradually compressed, and serious mutual cannibalism.Therefore, it is transferred to the soft bottom soil pond with larger space, rich biological bait and strong self-regulation ability of water quality in the middle and late stage of culture.The present application makes full use of the advantages of hard bottom soil pond and soft bottom soil pond with netting by engineering modification of low-salt shrimp pond, reduces the disease rate of Macrobrachium Nipponense, ensures Macrobrachium Nipponense to pass through the juvenile stage, promotes growth, shortens the culture period, reduces cannibalism, improves the yield and economic benefits of culture.

The invention discloses a probe for marking gill tissue neuronal cells of macrobrachium hainanense and application of the probe, and belongs to the technical field of biology. The nucleotide sequence of the probe is as shown in SEQ ID NO. 1. According to the method, the probe is designed by screening and utilizing the specific high-expression gene AChE of the macrobrachium hainanense gill tissue neuronal cells for the first time, so that accurate in-situ labeling of the cells can be realized, and cross reaction with non-neuronal cells is effectively avoided. Through a fluorescence in situ hybridization (FISH) technical process, neuronal cells are mainly distributed in a gill axis, only a small part of neuronal cells are distributed in gill filaments, and an AChE gene expression signal is enhanced under alkalinity stress, which indicates that the gene can be used as an alkali-resistant molecular marker. According to the invention, the blank of the technology for marking the neuronal cells of the gill tissue of the crustacean is filled, an important genetic target and a technical means are provided for breeding a new strain of the high-alkali-resistant crustacean, and the method has a wide application prospect.

This invention belongs to the field of aquaculture technology, specifically relating to a plant-derived compound preparation for controlling precocious puberty in giant freshwater prawns, its preparation method, and its application method. The plant-derived compound preparation comprises the following raw materials in parts by weight: 1.5–3.0 parts gardenia extract, 0.5–1.2 parts quince extract, 0.5–1.0 parts mulberry leaf extract, 0.5–1.2 parts lily extract, 1.0–2.5 parts dried ginger extract, and 90–98 parts vitamin B complex powder. The plant-derived compound preparation is added to the feed of giant freshwater prawns at specific growth stages and simultaneously sprinkled into the aquaculture water. Through surface penetration and absorption, it regulates and improves hepatopancreatic function, enhances nutrient digestion and conversion, promotes growth, and reduces the probability of precocious puberty, thus replacing existing control measures. The technical solution of this invention has the characteristics of good and stable control effect, small dosage, convenient use, and high safety, ensuring the size and yield of marketable prawns, thereby achieving the goal of rationally controlling the density of giant freshwater prawns in ponds and improving aquaculture efficiency.