10 results about "Schizothorax" patented technology

The invention relates to the technical field of fishery breeding, and particularly discloses a fry hatching device for schizothorax breeding, comprising a support frame, the top of the support frame is fixedly connected with a hatching box and a breeding box, the side surface of the hatching box is fixedly connected with the side surface of the breeding box, and two sides of the inner wall of the breeding box are fixedly connected with plastic plates; the fry hatching equipment comprises a hatching box and a breeding box, the side faces of the hatching box and the breeding box communicate with water adding pipes, the bottom of the side face of the hatching box penetrates through and is fixedly connected with a purification assembly, and an inlet is formed in the side, close to the hatching box, of the inner wall of the breeding box. And the aeration device is arranged, so that the content of dissolved oxygen in the incubator can be increased, sufficient oxygen is provided for fertilized eggs, and healthy growth of the fertilized eggs is promoted.

This invention discloses an artificial breeding method for *Schizothorax lancensis*, belonging to the field of aquatic animal breeding technology. The artificial breeding method for *Schizothorax lancensis* provided by this invention includes: intensive three-step cultivation of broodstock, injection of spawning induced agents after cultivation, artificial fertilization, hatching of fertilized eggs, and fry cultivation. Using the artificial breeding method of this invention, the success rate of spawning induction in female *Schizothorax lancensis* is 83.3%, the average fertilization rate is 87.5%, the average hatching rate is 93.0%, and the average fry emergence rate is 91.5%. This achieves large-scale artificial breeding of *Schizothorax lancensis*, laying the foundation for preventing the extinction of *Schizothorax lancensis*, and for carrying out the propagation and release of *Schizothorax lancensis* for industrial utilization.

The present application relates to the technical field of soft-spined naked schizothorax breeding, in particular to a water quality and temperature detection device for soft-spined naked schizothorax breeding, which comprises a multifunctional sensor, a depth adjusting member, a protective cover member and an automatic cleaning member. The depth adjusting member is provided with the multifunctional sensor at the lower end. The protective cover member is rotatably connected with the depth adjusting member. The automatic cleaning member is slidably connected with the multifunctional sensor. The depth adjusting member comprises a ring-shaped air bag and a shell. The ring-shaped air bag is fixedly connected with the shell. The device can clean the dirt on the multifunctional sensor in time, realize accurate measurement, measure the temperature and water quality of the whole water area for full water layer profile measurement, timely regulate the local area temperature and find the water quality problem, prevent the multifunctional sensor from being impacted when sinking, ensure the direct contact of the multifunctional sensor with the water area environment, and realize accurate real-time measurement of water quality and water temperature.

The invention provides a device and a method for selecting substrates with suitable grain sizes for schizothorax fries. The device comprises a cylindrical water tank, a separation assembly and a life support system. The water tank is divided into a central larva fish throwing area and a plurality of fan-shaped substrate areas by partition assemblies, and gravel substrates with the same gradient particle size (1-30 cm) are laid in the symmetrical areas; the life support system maintains the water temperature to be 16-18 DEG C, the dissolved oxygen to be 6-7 mg / L and the water flow to be stable. The method comprises the steps that a substrate is laid, environment parameters are adjusted, 100-200 healthy larva fishes are put in, after adaptation, a baffle is pulled away so that the substrate can be freely selected, after one hour, the baffle is put back for partition counting, and the appropriate particle size is determined through a preference degree formula (P = (n / N) * 100%). Free selection and accurate counting are achieved through the detachable baffle, the problem of observation deviation of a traditional device is solved, and the result provides reference for sediment construction of a schizothorax spawning site.

This utility model discloses a short-barbel schizothorax breeding and release chamber, relating to the field of fish fry farming technology. It includes a box body, inside which a chamber is installed. The inner wall of the chamber is equipped with a filter frame for filtering feed, fish feces, and uneaten feed. A temperature sensor is installed on one side of the box body for monitoring the temperature inside the chamber. A lid is rotatably connected to the top of the box body via a hinge. A shell is fixed to the inner wall of the lid, and a feeding assembly is installed inside the shell. The beneficial effects of this utility model are: the feed is guided to different outlets by a flow guide frame; the feed enters the chamber through the outlets and the feeding port on the lid, achieving feed addition to different locations inside the chamber, improving feeding uniformity; and the filter frame filters out pollutants, preventing their accumulation in the chamber, maintaining water quality, and providing good living conditions for fish fry.

The invention provides a schizothorax fish fertilized egg ultraviolet radiation damage experiment device and method. The device comprises a life support system, a main experiment system, a water inlet and outlet system and an oxygen supply system. The top of the main experimental system is divided into four independent areas, a metal net bag is hung in each area through a fixing device, stable water flow is formed at the 45-degree inclination angle of the tail end of a water inlet pipe, and the life support system maintains the water temperature to be 13-18 DEG C and the water quality to be stable. The method comprises the following steps: acquiring ultraviolet data in a natural reproduction period, setting intensity (low / medium / high) and time (short / medium / long) gradients, irradiating fertilized eggs from P1 to P7 periods, counting a death rate and analyzing a semi-lethal dose. Water environment interference is eliminated through integrated design, an accurate and efficient ultraviolet radiation injury experiment is achieved, and the device is suitable for schizothorax fish fertilized egg protection research. Water environment interference is eliminated through integrated design, an accurate and efficient ultraviolet radiation injury experiment is achieved, and the device is suitable for schizothorax fish fertilized egg protection research.

The Lancang schizothorax fry rearing device is characterized in that a water inlet channel, a water outlet channel and a circulating pump are connected to the front side wall and the rear side wall of a parent fish culture pond respectively, and a filtering assembly is further arranged in the water inlet channel; an outer-layer pore plate and an inner-layer pore plate which are mounted in a relatively sliding manner are arranged at the communicated parts of the two channels and the parent fish pond, and water passing holes which are uniformly distributed are formed in each pore plate; a sliding partition plate and a sliding filter plate are arranged at the position, close to the bottom, in the parent fish pond, and a flashboard is vertically installed at a slag discharging hole in the pond wall of the parent fish pond in a sliding mode. The driving assembly enables the sliding partition plate and the sliding filter plate to slide reversely in sequence, so that during cleaning, the driving assembly drives the sliding partition plate to be inserted into the parent fish pond firstly to separate water above the parent fish pond, after the sliding partition plate is inserted in place, the flashboard slides upwards to thoroughly open the slag discharging hole, and the sliding filter plate slides out towards the outer side of the parent fish pond. The Lancang schizothorax can be bred under dynamic water flow, gonad maturation is promoted, and the parent fish pond can be conveniently and frequently cleaned without fishing.

This invention relates to the field of fish fry breeding and aquaculture technology, and specifically discloses a feeding device for breeding and aquaculture of Schizothorax bream fry, comprising: a frame, with support rods fixedly connected to the outer side of the frame, a buoyancy ball fixedly connected to the end of the support rods away from the frame via a bracket, a feed storage box fixedly connected to the top of the frame, a feeding port on the top of the feed storage box, and a discharge frame connected to the bottom of the feed storage box; a feeding device, the top of which is fixedly connected to the outer side of the frame; and a diffusion device, the outer side of which is fixedly connected to the outer side of the frame via a bracket; multiple sets of support rods are provided, evenly distributed on the outer side of the frame; wherein, the feeding device includes a feeding roller. This feeding device for breeding and aquaculture of Schizothorax bream fry can distribute a fixed amount of feed into the breeding pond and can adjust the feeding amount.

An experimental method for low-high temperature hatching stimulation and dual-high temperature tolerance threshold determination for schizothoracine fish eggs in high diurnal temperature variation waters includes: step 1, determining daily extreme water temperatures and a daily water temperature variation during natural incubation of the schizothoracine fish eggs; step 2, implementing an incubation water temperature with the daily water temperature variation; step 3, determining a key hatching water temperature; step 4, inducing mass hatching of the schizothoracine embryos; and step 5, determining temperature tolerance thresholds. Through indoor water temperature gradient experiments on the schizothoracine fish eggs, a hatching mechanism under low-high temperature stimulation for fertilized eggs of Schizopygopsis microcephalus in Yangtze River source, and dual-high temperature tolerance ranges and thresholds. This provides scientific support for the protection and restoration of fishery resources in the Yangtze River source under the background of global warming.

The invention provides an identification and analysis method for breeding biological characteristics of schizothorax in a plateau area. The invention discloses a plateau region schizothorax fish breeding biological characteristic identification and analysis method. The method comprises the following steps: S1, sample collection and basic data acquisition; s2, fish gonad development staging and reproduction cycle determination; s3, accurate age identification and growth relation establishment; s4, primary sexual maturity identification and analysis; s5, determining breeding seasons and periods; s6, determining spawning types; s7, high-precision fish fecundity determination and analysis; s8, carrying out correlation analysis on the reproductive capacity model and the environmental factors; and S9, evaluating a population breeding strategy and vulnerability. The plateau region schizothorax breeding biological characteristic identification and analysis method provided by the invention has the advantages that complete process operation from sample treatment to ecological evaluation can be realized, and the problems of scattered methods, low data precision and disjunction with environmental factors in the prior art can be solved.