10 results about "Snail" patented technology

This invention relates to a zero-shot Oncomelania snail identification method and system based on a structured knowledge base and attention guidance, belonging to the field of image processing technology. The method includes: acquiring original images of Oncomelania snails; generating an attention map using a pre-trained model to locate and crop discriminative regions; constructing a structured Oncomelania snail knowledge base and guiding a large language model to generate fine-grained text descriptions; extracting image and text features separately, calculating region weights and text weights; and determining the snail species through weighted image-text similarity matching. This invention achieves zero-shot identification without annotating image data, effectively suppresses interference from complex backgrounds, significantly reduces data and annotation costs, and improves identification efficiency and robustness, making it suitable for low-cost Oncomelania snail monitoring in field environments.

This utility model discloses a hanging cage device for co-culturing crabs and snails in crab ponds, including a cage body, a snail breeding tube, a foldable insert, an insert adjuster, and an electric screening component. The cage body is placed in the crab pond, the snail breeding tube is installed inside the cage body, the foldable insert is set on the outer wall of the cage body and its upper end is connected to the insert adjuster, the insert adjuster is installed on the top of the cage body, and the electric screening component is set on the top of the cage body. The cage body includes a cage body, a cage cover, a handle, a float fixing ring, and a fixing buckle. The cage body includes an outer frame and a movable bottom net movably set at the bottom of the outer frame. The outer frame is a square structure formed by several sets of PVC pipes, and the cage cover is set on the top of the cage body. The hanging cage device for co-culturing crabs and snails designed in this utility model can realize the ecological co-culturing of crabs and snails, greatly improving the farming efficiency of farmers and reducing feed input costs.

This invention discloses a biomimetic bulletproof insert inspired by the shell of the scaly-foot snail and the elytra of the ironclad beetle, comprising: an upper plate, a middle plate, and a lower plate stacked sequentially from top to bottom, with the bottom of the upper plate extending into and fastening the lower plate. The upper, middle, and lower plates are connected by a mortise and tenon structure. A mortise and tenon transition layer is provided between the upper and middle plates, and between the middle and lower plates. The biomimetic bulletproof insert is designed to resemble the shell of the scaly-foot snail. The upper plate is a rigid metal plate, capable of attenuating most of the impact energy. Its bottom extends inward to form a support plate that inverts and fastens the lower plate, preventing the bulletproof insert from slipping between layers. The upper and middle plates are connected by a first mortise and tenon structure designed to resemble the elytra of the ironclad beetle, preventing interlayer delamination with reduced or even no adhesive. The middle plate is made of high-performance fiberboard material, which helps to release energy and reduce vibration. The transition layer with a second mortise and tenon structure between the middle and lower plates further effectively prevents interlayer delamination.

The present application relates to a breeding method of hybrid seed of Babylonia formosae and Babylonia areolata. The breeding method comprises the following steps: breeding Babylonia formosae parent snails and Babylonia areolata parent snails in the dark, feeding 3-5% of the body weight of Babylonia formosae with vegetables, and feeding 10-15% of the body weight of Babylonia formosae with mixed biological bait, continuously feeding until the gonad matures, and feeding at least once a day; obtaining egg sac clusters by hybridizing Babylonia formosae parent snails and Babylonia areolata parent snails; hatching the egg sac clusters to form planktonic larvae, cultivating the planktonic larvae for 15-20 days, and metamorphosing the planktonic larvae into juvenile snails to obtain hybrid seed. The hybrid seed obtained by the breeding method has excellent metamorphosis rate, fertilization rate and hatching rate, and the average body weight, average shell length and survival rate are also significantly improved.

This utility model discloses a double-sided snail trap, comprising: a box body, with at least one snail inlet on each of the lower sides of the box body; and an escape prevention component disposed inside the snail inlet. The escape prevention component includes several levers arranged in a row that can swing around their upper ends. The levers have a first position and a second position. In the first position, the levers block the snail inlets and can rotate unidirectionally inward under the action of an external force from the outside to the inside. When the levers are subjected to an external force from the outside to the inside, they rotate inward to reach the second position and return to the first position when the external force is removed. When the snail trap is installed in the activity area of ​​the golden apple snail, the snails can be lured into the box body. The escape prevention component prevents the golden apple snails inside the box from escaping again, greatly improving the trapping efficiency, without environmental pollution or damage, and with low labor costs.

The present application relates to the field of aquaculture breeding technology, and discloses an indoor cement pool artificial breeding method for east wind snail, which comprises the following steps: storing east wind snail egg sacs after disinfecting water body by ultraviolet rays, removing infected egg sacs, and performing specific water flow replacement 24 hours before hatching; feeding the larvae with a nutrient agent containing clostridium aceticum protein and agaricus blazei polysaccharide every day after hatching, feeding the larvae with monosomic algae such as chrysomonad, tetraselmis, chlorella, etc. in the early stage, and feeding the larvae with shelled algae in the middle stage until the larvae are attached and metamorphosed; keeping the breeding pool continuously aerated and controlling parameters such as dissolved oxygen, salinity, temperature and pH value of the water body during the breeding period, and finally collecting the snail seedlings to end the breeding. The indoor cement pool artificial breeding method for east wind snail provided by the present application is suitable for one or more of fasciolaria fasciolaris and mud east wind snail, and can effectively improve the success rate and seedling quality of indoor cement pool breeding of east wind snail.

This utility model discloses a wall-mounted golden apple snail trapping box, including a box body. At least one snail inlet is provided on the lower front side of the box body. A hanging fixing component is provided on the box body. A guide slope extending upwards from the rear side of the box body to the front side of the inlet is provided on the lower side of the box body. An anti-escape component is installed inside the snail inlet. The anti-escape component includes several levers arranged in a row that can swing around their upper ends. The levers have a first position and a second position. In the first position, the levers block the snail inlet and can rotate unidirectionally inwards under an external force. When subjected to an external force, the levers rotate inwards to reach the second position and return to the first position when the external force is removed. Hanging the trapping box in the golden apple snail's activity area can lure the snails into the box. The anti-escape component prevents the snails from escaping again, significantly improving trapping efficiency, eliminating environmental pollution and damage, and reducing labor costs.

This utility model discloses a golden apple snail trap, relating to the field of biological control technology. It includes: a base, at least one climbing board, a moving device, and a vibration device. The base has a golden apple snail collection chamber with an open top. The output end of the moving device is connected to the climbing board, which can drive the climbing board from a first state to a second state. In the first state, the outer wall of the climbing board is in contact with the side wall of the base. In the second state, the gap formed between the climbing board and the side wall of the base allows the snails to fall into the golden apple snail collection chamber. The vibration device can drive the climbing board to vibrate, causing the golden apple snails adsorbed on the climbing board to fall off. By using an attractant to lure the golden apple snails to climb autonomously, multiple snails can be attracted simultaneously, resulting in high capture efficiency. Only periodic cleaning of the golden apple snail collection chamber is required; there is no need for a person to hold the snail trap and capture the snails in real time, making it more convenient to use.

This invention discloses a multi-stage separation device and method for live and dead snails in the cultivation of broad-bodied golden leeches, comprising: a pump-suction transmission structure for centrally acquiring snails to be separated; a floating-sinking separation structure connected to the pump-suction transmission structure, which receives live and dead snails and performs floating-sinking separation based on the difference in their weight and buoyancy; a floating snail aggregation structure connected to the floating-sinking separation structure, which receives and quantitatively accumulates live and dead snails in a floating state; a vibrating sieve assembly connected to the floating snail aggregation structure, capable of outputting snails of specific sizes; and a differential speed separation structure connected to the vibrating sieve assembly, capable of differential speed separation based on the water flow velocity in the pipeline and the size of the snails. This invention achieves timely and efficient separation of live and dead snails in the cultivation of broad-bodied golden leeches, avoiding the long-term accumulation and spoilage of dead snails, and solving the technical problem of environmental pollution in existing technologies.