6 results about "Urechis unicinctus" patented technology

The utility model discloses a urechis unicinctus sand filter, and belongs to the technical field of aquaculture tail water treatment. The sand filter comprises a sand filter body, a hollow overflow layer and an outer protective layer, the sand filter body is divided into three layers, namely a fine sand layer, a coarse sand layer and a cobblestone layer, through a urechis unicinctus culture box supporting sieve plate, a coarse sand screen and a cobblestone screen. And the fine sand layer is divided into four fan-shaped sea worm breeding boxes, the side surfaces and the bottoms of the box bodies are permeable screen-shaped, and arc-shaped protective plates are arranged on top plates of the box bodies, are folded at the upper edge of the sand filter body and are used for overflow drainage. And the sand filter is used for filtering large particles in the aquaculture tail water by absorbing residual bait and excrement in the aquaculture tail water by using the sea intestines and filtering the large particles in the aquaculture tail water by using fine sand. The device organically integrates machinery, microorganisms and organisms to purify the culture tail water, is time-saving and labor-saving, is suitable for filtering natural seawater or factory-like and pond seedling culture and culture tail water, and is wide in application range; the utilization rate and the output rate of unit seawater resources are improved, and waste of water resources is avoided.

The invention relates to the technical field of urechis unicinctus breeding, in particular to a seedling raising device for urechis unicinctus breeding, which comprises a urechis unicinctus seedling raising box body, breeding assemblies are arranged on two sides of the urechis unicinctus seedling raising box body, each breeding assembly comprises a device port, and the device ports are arranged on one side of the urechis unicinctus seedling raising box body. According to the invention, through the arrangement of the interlayer type culture assembly formed by sequentially stacking the outer side water-permeable net plate, the liftable blocking plate and the inner side water-permeable net plate, when water body exchange needs to be adjusted, the control assembly drives the blocking plate to stably lift in a guide space formed by the two layers of fixed net plates; the design ensures that water flow needs to be subjected to double filtering and buffering under any opening degree, linear fine regulation and control of flow can be achieved, effective escape prevention of at least one physical barrier can be maintained all the time, and therefore the technical defects that when a traditional seedling raising window single-layer structure is opened, the escape risk is high, and water flow impacts and directly disturbs seedlings are fundamentally overcome.

The invention discloses a microinjection-based urechis unicinctus gene editing method, and belongs to the technical field of gene editing. The method comprises the steps of target spot design, micro-injection, artificial insemination, genotype mutation detection and phenotype mutation detection. According to the knockout method for rapidly obtaining the CRISPR / Cas9 gene with genotype and phenotype mutations, a plurality of targeted sgRNAs are introduced into a CRISPR / Cas9 genome editing system, so that a detection method for generating a target phenotype on F0-generation urechis unicinctus is realized. The urechis unicinctus embryo microinjection operation technology is established for the first time, and gene editing of the urechis unicinctus is successfully achieved. The method provides a powerful technical means for carrying out urechis unicinctus gene function research and genetic improvement of urechis unicinctus breeding varieties.

The utility model discloses a urechis unicinctus harvesting device, which relates to the technical field of urechis unicinctus harvesting, and comprises a rack, a stone baffle plate is fixedly arranged on the side wall of the rack, a U-shaped water pipe is fixedly arranged on the upper end face of the rack, a water inlet pipe is fixedly connected on the side wall of the rack, the water inlet pipe is communicated with the U-shaped water pipe, and a fixed plate is fixedly arranged on the inner wall of the rack. A plurality of first water outlet pipes are installed on the fixing plate in an up-down sliding mode, conical water spraying blocks are fixedly connected to the bottom ends of the first water outlet pipes, and the first water outlet pipes communicate with the U-shaped water pipe; a high-pressure water pipe, a water wheel, a first rotating shaft and a cam are arranged; a high-pressure water pipe impacts a water wheel, so that a cam drives a connecting rod to rotate around a first rotating shaft, when the connecting rod rotates, a first water outlet pipe and a conical water spraying block are driven by a fixing block to be intermittently inserted into sand, deep urechis unicinctus is sprayed upwards through high-pressure water flow or is made to be close to the ground plane, and it is avoided that a sand bed is continuously scraped, and damage to the sand bed is caused; the growth environment of the urechis unicinctus is protected.

The present invention discloses a vessel for three-dimensional breeding and raising of schizontids, belonging to the technical field of breeding vessel equipment. The vessel comprises a hull, with a breeding mechanism provided in the middle of the hull. The breeding mechanism comprises multiple cage assemblies and two lifting components. The cage assemblies comprise a box body and four tethering components. The box body comprises an upper cover and a baffle. Multiple first mesh holes are provided on the sides of the box body, and second mesh holes are provided on the bottom of the box body. The baffle is slidably embedded in the bottom of the box body. The tethering components comprise two tethers, a first lifting ring, and a first locking buckle. The two tethers are arranged vertically and fixedly connected to the upper and lower sides of the box body, respectively. The first lifting ring is fixedly mounted at the bottom end of the bottom tether, and the first locking buckle is fixedly mounted at the top end of the upper tether. The present invention effectively solves the problems of laying, replacing, and removing sediment and other substrates at the bottom of the breeding area, which are labor-intensive and labor-intensive, and the breeding area is relatively fixed, resulting in low water utilization and the inability of schizontids to fully absorb nutrients from the water.