7 results about "Macrobrachium" patented technology

The utility model relates to the technical field of macrobrachium breeding, in particular to a macrobrachium breeding net cage capable of rapidly separating seed shrimps, which comprises an upper frame. The device further comprises a first mounting groove, a reset rotating shaft, a first positioning ring, a first pull rope, a lantern ring, a sieve plate and a second pull rope, one ends of stand columns are mounted at the corners of the bottom surface of the upper frame, the other ends of the stand columns are connected with a lower frame, and mesh belts are arranged on the outer surfaces of the four sides and the bottom surface of the lower frame; by arranging a second pull rope, when the second pull rope is pulled, a lantern ring can be driven to slide upwards along a stand column, the lantern ring drives a sieve plate to move upwards, meanwhile, a first pull rope can be pulled, the first pull rope is wound on the outer surface of a first positioning ring, and therefore the first positioning ring and a reset rotating shaft can be driven to rotate; after the sieve plate ascends and descends repeatedly, the seed shrimps are left on the upper surface of the sieve plate, and the shrimp seeds are left below the sieve plate, so that rapid separation is realized.

The invention discloses preparation of a galangal stem and leaf extract and application of the galangal stem and leaf extract in cherax quadricarinatus culture, the addition amount of the galangal stem and leaf extract accounts for 0.3-0.5% of the total mass of feed, and the galangal stem and leaf extract has the effects of improving the growth performance and digestive ability of cherax quadricarinatus, improving intestinal flora of cherax quadricarinatus and enhancing the immunity of cherax quadricarinatus. In addition, the rhizoma galangae stems and leaves are non-medication parts, the utilization rate of rhizoma galangae can be greatly increased, and the method is ecological, environment-friendly, green and healthy.

The application provides a method for constructing an intelligent prediction model for the quality of frozen prawns based on a random forest algorithm. The method combines test data of ultrasonic-assisted immersion frozen prawns, ice crystal morphology detection data, and quality index detection data, and establishes a multivariate characteristic quality prediction model based on the random forest algorithm between the ultrasonic-assisted immersion frozen process parameters, the ice crystal morphology parameters, and the quality evaluation indexes, so as to realize accurate and efficient prediction of the frozen quality indexes. In combination with SHAP explanation and analysis, the influence weight and the nonlinear response characteristics of each parameter in the prediction model on the quality indexes are quantified, the interactive influence of each parameter characteristic on the quality is analyzed, the internal mechanism that the ultrasonic parameters control the ice crystal morphology and then affect the quality is revealed, and a clear target is provided for process optimization.

The invention belongs to the field of multi-nutrition-level polyculture ponds, and particularly relates to a trachinotus ovatus-penaeus monodon-blue crab multi-nutrition-level polyculture pond which comprises a pond body, a lower-layer separation net is slidably connected to the lower middle portion of the inner wall of the pond body, and an upper-layer separation net is slidably connected to the upper middle portion of the inner wall of the pond body. The lower end of the upper-layer separation net is fixedly connected with a plurality of evenly-distributed supporting legs, and the upper end of the upper-layer separation net is fixedly connected with a supporting rod. The upper-layer separation net, the lower-layer separation net, the dismounting and mounting mechanism and other structures are additionally arranged in the pond body, in the using process, the pond body can be divided into three layers for breeding through the upper-layer separation net and the lower-layer separation net, independent species can be separated, mutual predation among bred objects can be effectively avoided, and the breeding efficiency is improved. In addition, in the breeding process, the bottom of the pond body can be oxygenated through an air conveying pipe, a rotary oxygenation frame and other structures at the bottom, and oxygenation of the water body in the pond body can be more uniform.

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 utility model relates to the technical field of microbial agent expanding culture, and discloses a microbial agent efficient expanding culture device for macrobrachium breeding. According to the utility model, the cabinet body; the temperature adjusting water tank is mounted on the inner wall of the bottom of the cabinet body; the expanding culture tank is arranged on the temperature adjusting water tank; the partition plate is fixedly arranged on the inner wall of the cabinet body; the adding mechanism is mounted on the partition plate and is used for adding a carbon source, a nitrogen source and trace elements into the expanding culture tank; the aeration mechanism is mounted on the cabinet body and is used for increasing dissolved oxygen of the bacterial liquid in the propagation tank; the temperature adjusting mechanism is arranged on the temperature adjusting water tank and is used for adjusting the propagation temperature; and the stirring mechanism is arranged at the bottom of the expanding culture tank and is used for stirring the bacterial liquid.

The utility model relates to the technical field of bionic aquatic plant cleaning, in particular to a bionic aquatic plant cleaning device for macrobrachium culture, which comprises a bottom box. Stand columns are arranged at the corners of the upper surface of the bottom box, a top cover is mounted on the top surfaces of the stand columns, a mounting plate is mounted at the front position of the bottom surface of the top cover, and a plurality of nozzles distributed at equal intervals are mounted on the bottom surface of the mounting plate; a water retaining frame is mounted on the upper surface of the bottom box, and a fixing frame is mounted at the front position of the inner surface of the water retaining frame; by arranging the driving motor, the output end of the driving motor can drive the screw rod to rotate during operation, the screw rod drives the moving seat matched with threads of the screw rod to reciprocate left and right, and the moving seat drives the bearing on the upper surface of the moving seat and the cleaning brush roller to synchronously move; and therefore, the cleaning brush roller can scrub sludge and excrement on the surfaces of the bionic aquatic plants.