1740 results about "Forage" patented technology

Frog farming method and frog cage are provided. The method comprises: I, putting young frogs in the frog cage in spring; II, putting lure attracting mosquitoes into the frog cage into the frog cage in summer and autumn, thereafter the frogs feed on the mosquitoes; III, avoiding snakes entering the frog cage in the place where the snakes inhabit; IV, covering the frog cage with plastic film in winter, mounting an electric lamp in the frog cage, increasing the temperature of air in the frog cage to keep the frogs not hibernating and promote the frogs to grow; V, adding artificial lure if necessary. The frog cage includes a fixed frog cage and a vehicle-mounted frog cage, both including inner tiers, wherein a water basin, a terrace and a stairway communicating the upper and lower tiers are arranged on each tier, and the frog cage is covered with a mesh enclosure. The frog framing method and frog cage have the advantages that the frogs are farmed in multi-tier cages, lures are used outdoors to attract insects, pests are eliminated for crops, natural ecology is balanced, and food sources are also provided for human; cage framing of frogs is very low in cost; frogs farmed have high reproductive rate, high disease resistance and high feed conversion capacity.

The invention provides a river crab feed feeding mixed monitoring method, system and device and a medium, and belongs to the field of aquaculture intelligent monitoring. Data is collected and normalized, and a chain type data collection system is constructed; the edge computing and block chain technology is adopted to realize data distributed storage and transmission; a fuzzy neural network hybrid model is constructed, fuzzification processing, feature mining and defuzzification output are integrated, and a feeding amount prediction value is generated; associating the feed proportioning library with the knowledge graph, and iteratively training the model and generating a multi-target feeding decision parameter; feeding equipment is controlled to execute actions according to the decision parameters, and the real-time monitoring model outputs and triggers an early warning signal; and updating the knowledge graph and the feed matching library based on the feedback data to form closed-loop self-adaptive regulation and control. According to the method, various factors can be comprehensively considered, scientific and intelligent feed feeding decision is realized, feed waste and insufficient feeding are effectively avoided, and the growth quality of the river crabs is improved.

Disclosed herein is use of miR528 in production and breeding of gramineous forage grasses. By down-regulating the expression and / or function of miR528, the present invention can significantly enhance the tillering and / or regeneration capacity of the gramineous forage grasses, which is conducive to the biomass accumulation of the gramineous forage grasses, and the breeding of new gramineous forage grass subspecies with enhanced tillering and / or regeneration capacity.

The invention relates to the technical field of black carp culture, and particularly discloses an AI identification system for black carp culture operation, which is used for solving the problem that an existing fishery culture feed distribution device is difficult to carry out accurate suspension and diffusion feeding of feed aiming at middle-layer and bottom-layer gathering behaviors preferred by black carps. The problems of feeding blind areas, low feed utilization rate and frequent manual intervention caused by lack of real-time intelligent identification and closed-loop regulation and control based on fish school distribution, feeding dynamics and environmental disturbance are solved; comprising a fishery breeding feed distribution device, a multi-source data acquisition module, a fish school detection module, a feedback correction module, an AI identification module, a bait field generation module and an execution control module. According to the method, fish school distribution and multi-source time sequence data are deeply fused through cross-modal diagram convolution, an adversarial sound-light-bubble bait field is generated, nonlinear resonance feeding and closed-loop feedback correction are applied, middle-layer suspension uniform distribution of black carps is achieved, and the feed hit rate and utilization rate are efficiently increased.

The invention discloses a rice field crayfish body surface cleanliness improving method based on accurate aquatic plant management and protection and ecological induction, and relates to the technical field of crossing of aquaculture and ecological agriculture. The lifting method comprises the steps that submerged plants are planted in the rice field in February every year, and the submerged plants are trimmed regularly in the cultivation process so that the top ends of the submerged plants can be kept under the water surface; shrimp seeds are put into the rice field, and feed is fed regularly; in the subsequent breeding process, during regular feeding of feed, feeding of crushed pomacea canaliculata is carried out; and after the young crayfishes grow up and shell, catching the crayfishes to obtain the crayfishes with high body surface cleanliness. According to the method, the growth state of the aquatic plants is precisely controlled to construct a natural clean field domain, the functional bait is fed to increase nutrition, meanwhile, friction cleaning is carried out through the feeding behavior, precise fishing is carried out based on the molting period, and therefore the body surface cleanliness of the crayfishes bred in the rice field is improved.

The invention discloses a multi-nutrition-level ecological breeding system suitable for freshwater fish breeding, the ecological breeding system comprises a breeding variety combination level and an ecological niche complementary variety combination level, the multi-nutrition-level ecological breeding system has the beneficial effects that efficient utilization of resources and self-regulation of an ecological environment are realized by constructing a multi-species coordinated three-dimensional population structure; through the arrangement of the breeding variety combination level and the ecological niche complementary variety combination level, breeding objects of different nutrition levels are mutually supplemented and mutualistic, so that the productivity of the breeding system is improved, and the anti-risk capability of the system is also enhanced; the system integrates a plurality of functional modules, through application of technologies such as digital monitoring and remote control modules, real-time monitoring, abnormity early warning and remote control of the breeding environment are achieved, the water quality dynamic regulation and control module and the feeding planning module can precisely regulate and control water quality parameters and feeding plans according to growth requirements and environment changes of bred organisms, and the breeding efficiency is improved. And feed waste and water quality pollution are effectively reduced.

The utility model discloses a small square bale double-bale-outlet picking and baling machine which comprises a machine frame, a conveying and feeding device, a driving device, a gear box, a compressing and cutting device, a baling chamber and a baling needle device, and the conveying and feeding device, the driving device, the gear box, the compressing and cutting device, the baling chamber and the baling needle device are arranged on the machine frame. A vertical moving cutter is further arranged in the middle of the rear end face of the compressing and cutting-off device, a vertical fixed cutter device and a bale separating plate located behind the vertical fixed cutter device are further arranged on the inner side of the bale pressing chamber, and when the compressing and cutting-off device is controlled to do reciprocating motion, the vertical moving cutter on the compressing and cutting-off device and the vertical fixed cutter device in the bale pressing chamber form a shearing effect. The device is used for horizontally and vertically cutting pasture or crop straw synchronously, and bundling and compressing the cut pasture or crop straw into square bundles. When forage grass or crop straw is harvested, the combined operation of picking, conveying, feeding, compressing, baling, bundling and the like can be completed, two bales can be output at a time, a large bale can also be output, and the bale density and the operation efficiency are improved.

The invention relates to the technical field of biology, in particular to application of a biological product expressed by an EsPTI15 gene to regulation and control of tiller number. The nucleotide sequence of the EsPTI15 gene is shown as SEQ ID NO: 1, it is found for the first time that the tiller number of EsPTI15 gene overexpressed siberian wildrye is remarkably increased compared with wild siberian wildrye, and the result proves that overexpression of the EsPTI15 gene can positively regulate and control the plant tiller development process. The discovery not only enriches the molecular mechanism theory of plant tillering regulation, but also verifies that the EsPTI15 gene has the application potential of increasing the tillering number of the plant, and provides key theoretical support and gene resources for subsequent technical research and development of introducing the EsPTI15 gene through gene operation, increasing the tillering number of forage grass and further realizing biomass improvement.

A juvenile fish cultivation apparatus and method, relating to the technical field of aquaculture. The juvenile fish cultivation apparatus comprises a cultivation tank (1), a visual identification apparatus (3), a translation mechanism, and a feeder capable of timed activation. A cultivation pond (2) is provided in the cultivation tank (1); the cultivation pond (2) is divided into three feeding areas by means of partition plates (9); isolation holes (11) and a fish pass gate (10) capable of opening and closing are provided on each partition plate (9); and fish guiding devices (5) are provided in the feeding areas located on both sides. The feeder is translated by means of the translation mechanism; the translation direction is perpendicular to the arrangement direction of the feeding areas; and the feeder can swing reciprocatingly for feeding. The visual identification apparatus (3) comprises a visual module and a control module; when the visual module detects that a juvenile fish in the middle feeding area has grown to a preset large-size, the fish pass gate (10) opens and the fish guiding devices (5) are started; and when there is no juvenile fish in the middle feeding area, the fish pass gate (10) closes and the fish guiding devices (5) are turned off. Regular and dosed feeding can be achieved, inconvenient feeding caused by aggregated bait is avoided, and a safe growth environment with sufficient feed is provided for small-sized juvenile fishes, thereby reducing the size disparity among juvenile fishes.

The present invention discloses a soybean straw and forage grass-based soil fertility synergistic improvement device, and relates to the technical field of fertilization, the soybean straw and forage grass-based soil fertility synergistic improvement device comprises: a moving mechanism, one side of which is detachably provided with a carrier plate; the side, away from the moving mechanism, of the deflection plate is hinged to the carrier plate, and a first telescopic rod is hinged between the other end of the deflection plate and the carrier plate; the plowshare assembly is arranged on the side, close to the moving mechanism, of the deflection plate; the shallow layer rotary tillage assembly is arranged on the side, away from the moving mechanism, of the deflection plate; the first feeding assembly is arranged on the carrying plate and located between the shallow layer rotary tillage assembly and the plowshare assembly, and the device can give consideration to both the deep layer and the surface layer of soil.

The invention discloses a fish ingestion intensity intelligent evaluation and dynamic feeding system and method, and the method comprises the steps: obtaining a fish shoal ingestion image in real time through video monitoring, extracting a key frame through a Hash difference threshold algorithm, and carrying out the multi-dimensional data enhancement; a three-level fusion model fusing CNN local features, CoordAtt attention features and Transform global features is constructed, and lightweight and high-precision optimization of the model is realized in combination with a transfer learning strategy; according to the feeding intensity grade output by the model in real time, dynamic and accurate feeding control is carried out in combination with the fish biomass, feed waste is effectively reduced, the environmental adaptability of the system is improved, and precision and intelligentization of fish culture are achieved.

The utility model relates to the technical field of aquaculture, and discloses a domestication device for artificial fish compound feed, which comprises a support, the upper surface of the support is fixedly connected with a mixing barrel, the upper surface of the mixing barrel is provided with a top cover, the inside of the top cover is fixedly connected with a feeding hopper, and the outer wall of the feeding hopper is slidably connected with a sealing cover. A mixing assembly used for mixing feed is installed on the upper surface of the top cover, a quantifying assembly used for quantitative discharging is installed on the lower surface of the mixing barrel, a culture pond is arranged on the lower surface of the support, and a drainage plate is fixedly connected to the bottom of the inner wall of the culture pond. According to the automatic feeding device, manpower and cost are saved through automatic constant-speed and uniform-amount feeding, the motor drives the conical barrel and the arc-shaped plate to rotate, the domestication rate is increased, fish growth is promoted, the feeding amount is accurately adjusted according to the fish feeding condition, the valve is used for quantification, the threaded sleeve can replace feed with different block diameters, practicability is improved, and waste is reduced.

The invention relates to a molecular marker primer related to the feed conversion rate character of Muscovy ducks and application of the molecular marker primer, and belongs to the technical field of molecular detection. According to the molecular marker SNP related to the feed conversion rate character of the muscovy ducks, nucleotide sequences of SNP primers are shown as SEQ ID NO: 1-SEQ ID NO: 2, a first molecular marker is located at the FSTL4 gene GWHBJBF00000015: 17461711 position on the 15 # chromosome in a muscovy duck reference genome KizCaiMos1.0, and a basic group at the position is T or G, and a second molecular marker is located at the position of the FSTL4 gene GWHBJBF00000015: 17461711 position of the 15 # chromosome in the muscovy duck reference genome KizCaiMos1.0. The second molecular marker is located at the FSTL4 gene GWHBJBF00000015: 17461712 position on the No.15 chromosome in the Muscovy duck reference genome KizCaiMos1.0, and the basic group at the position is G or T. The Muscovy duck feed conversion rate screening device has the advantages that Muscovy duck feed conversion rate screening can be achieved, the seed selection accuracy is improved, and the seed selection efficiency is improved.

The invention provides an MsLEA3 gene and application thereof, and belongs to the technical field of plant genetic engineering. According to the invention, the alfalfa MsLEA3 gene is subjected to overexpression or gene editing is carried out on the MsLEA3 gene in alfalfa through a CRISPR / Cas9 system, so that an overexpression transgenic line of the alfalfa MsLEA3 gene or a gene editing transgenic line aiming at the alfalfa MsLEA3 gene is obtained. The salt tolerance of an overexpressed or gene-edited medicago sativa transgenic line of the MsLEA3 gene is remarkably improved, the MsLEA3 gene can be used for cultivating medicago sativa varieties with high salt resistance, a new theoretical basis and candidate genes are provided for cultivating new varieties of high-resistance leguminous forage, and the application of medicago sativa in production is greatly promoted.

The invention belongs to the technical field of pasture planting and cultivating, and particularly relates to a grassland pasture planting and cultivating device which comprises a box body, and a sealing door is hinged to one side of the box body; the cultivation assembly comprises a cultivation pot and a supporting frame; the discharging assembly is arranged in the box body and used for pushing the cultivation pots to slide towards the direction of the sealing door; the first driving assembly is arranged on the inner wall of the top end of the box body and used for driving the fixing frame and the cross rod to move; the second driving assembly is arranged on the fixing frame and used for driving the transverse rod to reciprocate up and down along the fixing frame; the spraying assembly is arranged on the transverse rod and used for atomizing the nutrient solution and spraying the nutrient solution to the top of the pasture; by arranging the first driving assembly, the second driving assembly and the discharging assembly, cultivation pots can be conveniently pushed out from the interior of the box body, workers do not need to enter the narrow box body, operation is easy, the working intensity of operators is reduced, and the working efficiency is improved.

The present invention discloses a rotary underwater fish-aggregating power generation device and its operating method, comprising a float, a power generation module, and a payload module; the payload module includes a housing, a rechargeable power source, a lifting unit, a storage box, and a pressure pump; the power generation module includes a main column, a rotating bearing, brushes, Q rotating frames, a sealing sleeve, and a main delivery pipe. The present invention utilizes a rotary structure to securely attach a piezoelectric composite flexible membrane to the main column and rotating frame, such as a cantilever beam. A mixture of fish-aggregating element and feed is released outward at different locations on the power generation carrier to attract fish to the device. The piezoelectric composite flexible membrane is bent and deformed by the water flow and the fish, generating and storing current. The present invention can be mounted on a payload for simultaneous use, enhancing endurance during cable-free operations in deep waters and continuous, long-term ocean exploration missions. It offers excellent concealment and utilizes the marine environment to generate electricity, but the device does not require special installation or active implantation onto marine organisms.

The invention relates to the field of aquatic feed, and provides a low-temperature adhesive type aquatic feed particle composition and a preparation method thereof. The composition is composed of puffed soybean meal, flour, fish meal, low-temperature directed enzyme, microcrystalline cellulose, modified zein nanoparticles, a protein adhesive and a modified zein ethanol water solution. The preparation method comprises the following specific steps: reacting soybean protein isolate with cross-linking enzyme to generate a protein adhesive, reacting proanthocyanidins with gallic acid to generate gallic acylated proanthocyanidins, and carrying out multi-step treatment on zein. Experimental results show that the composition has excellent water resistance and oxidation resistance, and the growth efficiency and the survival rate of aquatic animals are remarkably improved. The preparation method is simple, the cost is low, heat-sensitive substances in the feed are not damaged, and an economical, efficient and nutrient-rich feed solution is provided for aquaculture.

The invention relates to a composition for treating large yellow croaker pyramidoniasis as well as a preparation method and application thereof, and belongs to the technical field of aquaculture. The composition comprises the following components: curcumin, bile acid, beta glucan, bacillus subtilis freeze-dried powder, marine red yeast freeze-dried powder, vitamin C, vitamin E and ethylicin. When the feed additive is added into basal feed to feed large yellow croakers infected with the trypanosomiasis, the death rate of sick fishes can be effectively reduced, the polypide loading capacity is remarkably reduced, and pathological injuries of livers and spleens of the large yellow croakers are relieved. In addition, the composition can also improve the non-specific immunity of the fish body, improve the liver function, enhance the antioxidant capacity of the liver, and improve the lipase activity of the intestinal tract at the same time. Therefore, the composition can be used as a medicine or a feed additive for treating the large yellow croaker pyramidoniasis, has the advantages of small dosage and remarkable effect, and provides a new technical approach for solving the problem that the current large yellow croaker pyramidoniasis lacks an effective prevention and control means.

The invention discloses a preparation method of a low-protein biological fermentation feed for crayfish, and belongs to the technical field of aquaculture feeds, and the preparation method comprises the following steps: high-temperature fermentation: uniformly mixing soybean meal, rapeseed meal, cottonseed meal and a mixed bacteria solution containing bacillus subtilis, lactobacillus plantarum, saccharomycetes and EM bacteria, and performing high-temperature fermentation to obtain a fermentation product; and performing low-temperature fermentation: adding shrimp shell meal, corn flour, rice bran, cellulase and phytase into the fermentation product, performing uniform stirring to obtain a mixture, and performing low-temperature fermentation on the mixture to obtain the product. According to the low-protein biological fermentation feed disclosed by the invention, by-products such as shrimp shell meal, rice bran and rapeseed meal are used as raw materials of the biological fermentation feed, so that the cost of the feed can be reduced; and the aims of enhancing the nutritional quality, improving the immunity and oxidation resistance of the organism and improving the environment of a culture water body can be fulfilled for culturing the crayfish with the specification of about 12 grams per crayfish.

The application provides a kind of aquaculture timed feed device, relating to feeding device technical field, including: basic component;The basic component includes mounting plate and buoyancy piece, lifting piece is slidably installed on support frame, the compression ratio of spring between lifting piece and support plate is changed by adjusting lifting piece, and then the trigger value of the weight of support plate can be adjusted, so that the interval of feeding time can be adjusted in time according to the growth of aquatic organisms, by setting plug-in cylinder and rotating disc on storage tank, rotating the rotating disc, the more feed can flow out from the storage tank, and the use of lifting piece can adjust the feeding amount of each feed according to the growth of aquatic organisms, solve the problem that the practicality of the timed feed device for aquaculture is poor, it is inconvenient to adjust the interval and feeding amount of each feeding according to the growth of aquatic organisms, and the problem of not feeding in time or feeding less easily occurs.

The invention belongs to the technical field of aquaculture feed processing, and particularly relates to a processing technology of a sea cucumber intermediate culture feed. The sea cucumber intermediate breeding feed comprises fish meal, soybean protein isolate, seaweed meal, fermented soybean meal, multivitamins, a multivitamin premix and mineral salt. The processing technology comprises the following steps: firstly carrying out crushing pretreatment on the raw materials, then mixing the crushed raw materials, carrying out hardening and tempering, then carrying out twin-screw extrusion puffing to form carrier particles, carrying out low-temperature drying, then carrying out high-pressure atomization spraying technology to load the fish oil phospholipid complex, carrying out three-stage variable-temperature drying treatment, and finally carrying out cooling screening. The sea cucumber intermediate breeding feed processed by the method can be used for breeding in a transition stage from young sea cucumbers to young sea cucumbers, the survival rate of the young sea cucumbers in the breeding process is increased, and the sea cucumber intermediate breeding feed has the advantages of high nutrient retention rate and slow dissolution loss characteristic; in addition, the invention has the advantage of improving the order of micropores in the particles and the compactness of the surface layer so as to improve the physical stability of the sea cucumber intermediate culture feed.

The invention discloses an environment-friendly closed-loop ecological culture method for colored pearls, which belongs to the technical field of aquaculture and comprises the following steps: S1, selecting and culturing high-quality pearl mussels to form high-quality pearl mussels; s2, cooperatively culturing high-quality pearl mussels, fishes, algae and microbial communities; s3, according to the color requirement of the high-quality pearl mussels, algae, plankton, vegetable protein and a microorganism culture solution are used for preparing feed, the high-quality pearl mussels are fed, and the color and glossiness of pearls are regulated and controlled; s4, collecting breeding data in real time, and adjusting collaborative breeding parameters; according to the color requirement of high-quality pearl mussels, the feed is prepared from algae, plankton, vegetable protein and a microorganism culture solution, the high-quality pearl mussels are fed, nacre layer components secreted by pearl sacs in mussel bodies are affected through natural pigment components in the feed, and therefore the color and glossiness of pearls are regulated and controlled. The active regulation and control of the pearl color and glossiness can be realized.

The invention discloses a fishery breeding training platform for marine robot breeding and stability training, and relates to the field of aquaculture equipment, the fishery breeding training platform comprises a ship body, the ship body is provided with a first breeding bin and a second breeding bin which are used for breeding marine fishes, the first breeding bin is used for feeding of workers, and the second breeding bin is used for feeding of the workers. The second breeding bin is used for feeding of the intelligent robot, a feed bin and a medicine bin are arranged on the ship body, a storage plate is arranged on the ship body, a plurality of first driving parts used for supporting the storage plate are arranged on the ship body, the first driving parts are used for controlling the storage plate to shake, and an action collecting chamber is arranged on the ship body. A plurality of action acquisition monitors connected with the action acquisition chamber are arranged on the ship body, and the action acquisition chamber analyzes and controls the intelligent robot to work according to the work of workers. Data are provided for the intelligent robot to provide the mariculture platform, the training convenience of the intelligent robot is improved, and the training stability of the intelligent robot on the mariculture platform is ensured.

The invention belongs to the technical field of plant genetic engineering, and discloses application of an LcCBP60b-LcALY2 molecular module in regulation and control of growth and development and maturing rate of leymus chinensis. The invention discovers that the calmodulin binding protein coding gene LcCBP60b negatively regulates the growth and development and the maturing rate of the leymus chinensis for the first time, and a yeast double-impurity experiment discovers that the LcCBP60b interacts with the LcALY2 protein to regulate the related characters of the maturing rate of the leymus chinensis. The LcCBP60b negatively regulates the activity of the LcALY2 protein and inhibits the regulation effect of the LcALY2 coded THO protein complex 4B in the flowering and ear forming process of leymus chinensis. The LcCBP60b-LcALY2 molecular module verified by the invention provides a new perspective for deeply understanding a Leymus chinensis fruiting regulation mechanism, and provides a direct molecular target for directionally creating new varieties of high-fruiting-rate pasture and cereal crops.

The invention provides an automatic bait casting system for training and breeding juvenile plectropomus leopardus, which comprises a basic data module connected with an automatic bait training device and used for acquiring original data of a breeding pond and extracting feeding basic data; the dynamic association module is used for carrying out multi-level cross association modeling, causal inference association, sub-mode mining and classification adaptation to obtain an ingestion-turbidity dynamic association model and outputting an ingestion-turbidity relationship; the hunger index module is used for constructing a hunger index model and outputting the hunger index of each culture pond; the feeding strategy module is used for calculating the next feeding interval, the strip-shaped bait-live bait proportion, the actual time point of next feeding and the bait amount per hour and judging whether extra meal or increase of the next feeding interval is needed or not to obtain a self-adaptive feeding strategy; and the feeding driving module is used for controlling the running action of the automatic bait training device. Scientific feeding can be achieved, the feeding survival rate, the growth rate and the bait training effect are remarkably improved, feed waste is reduced, and intelligent and automatic management of the whole process is achieved.

The invention relates to marine fish breeding, and particularly discloses an indoor full-artificial breeding method for black epinephelus, which specifically comprises the key technical links of nutrient enrichment of parent fish, hormone induced spawning, artificial insemination and fertilized egg incubation, indoor breeding of fry, compound feed domestication and the like. By controlling water temperature, illumination, salinity and nutritional conditions, synchronous maturation and efficient ovulation of parent gonads of the epinephelus nigatosus are achieved, the fertilization rate reaches 95% or above, and the hatching rate exceeds 85%. According to the method, the whole-process artificial controllable breeding of the epinephelus nigatosus from the parent fish to the fry is realized, a new variety is provided for the epinephelus culture industry, and a feasible technical approach is also provided for the artificial breeding and improved variety breeding of the wild epinephelus nigatosus in the island reef of the South China Sea.

The invention relates to the technical field of aquaculture, in particular to a bionic young salamander breeding method, which remarkably improves the stress resistance of young salamanders on the premise of guaranteeing the survival rate through the synergistic effect of a dynamic environment simulation system, sectional bionic feed and staged environment challenge training. The dynamic environment simulation system regulates and controls multi-parameter dynamic change based on a fuzzy PID algorithm; the bionic feed adopts a segmented nutrition design and is combined with an intestinal targeted embedding technology; according to the environment challenge training, gradient gradual temperature fluctuation (+ / -0.5 DEG C to + / -1.5 DEG C), water flow disturbance (0.05 m / s to 0.15 m / s) and water quality fluctuation (turbidity is 5-15 NTU, pH is 6.8-7.2 oscillation) are matched with a nutrient enrichment and intelligent early warning system, and the stress resistance is directionally improved. A solution with ecological property and stress resistance is provided for large-scale breeding of the young salamanders.

The invention belongs to the technical field of aquaculture equipment, and discloses shrimp and crab culture feeding equipment based on water quality-weather linkage, which comprises a support base, a feed bin fixedly connected to the top of the support base, and a conveying assembly mounted at the bottom of the feed bin and used for conveying feed and poison bait in the feed bin; the throwing device is arranged in the middle of the supporting base and used for throwing the feed and the poison bait conveyed by the conveying assembly; through cooperation of a rotating plate, a second motor and other structures, the orientation position of the material throwing device is adjusted conveniently, the rotating plate is driven to rotate through a gear at the output end of the second motor and teeth on the outer side of the rotating plate, and the rotating plate drives a supporting rod and a first telescopic rod to drive the material throwing device to rotate; and the orientation of the throwing opening of the throwing device is adjusted, so that non-fixed-point throwing is realized.

The invention discloses an automatic feeding system and method for fishpond cultivation, and belongs to the technical field of fishpond feeding, the automatic feeding system comprises a supporting floating plate, a plurality of driving devices used for driving are arranged at the bottom of the supporting floating plate, and the automatic feeding system further comprises a feed storage mechanism arranged above the supporting floating plate. According to the device, the feeding cleaning assembly is arranged, so that feed is accurately distributed in a target area, fish school gathering is promoted while feed waste is reduced, feeding management is facilitated, excrement and residues attached to the net face are efficiently removed in the recycling process by combining eccentric vibration of a vibration roller, scraping and sweeping of a scraper and multiple cleaning arrangement of airflow jetting, and the recycling efficiency is improved. The laying net is kept sanitary, secondary pollution is prevented, the vibration roller achieves composite motion of rotation and revolution through gear transmission, the vibration effect is greatly enhanced, air flow jetting is matched, net face drying can be accelerated, the impurity separation efficiency is improved, excrement and residual material cleaning and recycling are achieved, influences on a fishpond water body are avoided, and the quality of the fishpond water body is guaranteed.

The invention discloses a method for efficient maturation of ovaries of industrially cultured plectropomus leopardus. The method comprises the following steps: screening healthy plectropomus leopardus individuals from a plectropomus leopardus population as parent fishes; putting the fish in an indoor culture pond for water adaptation to obtain high-quality parent fish; performing induced culture on the high-quality parent fish, wherein the induced culture comprises nutrient enrichment and temperature induction; the temperature induction time is less than or equal to 35 days to promote the ovary maturation of the parent fish. Through an indoor induction mode combining low-temperature energy storage, gradient rewarming and nutrient enrichment feed, the maturation rate of the female plectropomus leopardus ovary can be remarkably increased to 85% or above, and the maturation period is shortened to be within 40 days. The method is suitable for a standardized breeding process of an indoor parent fish breeding workshop, effectively realizes synchronous maturation and quality improvement of the parent fish group ovary, provides a stable parent guarantee for indoor artificial breeding of plectropomus leopardus, and has a good popularization and application prospect.