16results about How to "Improve hatchability" patented technology

The utility model provides a fairy shrimp temperature control hatching device which comprises a hatching box, a heating plate, a motor, a rotating shaft, blades and a pushing mechanism, the pushing mechanism comprises a sleeve, a piston, a reset spring, a stress block, a pushing rod, a transverse pipe, a vertical pipe and a jet head, and fairy shrimp eggs and hatching liquid can be poured into the hatching box. A proper temperature environment is provided under the action of a heating plate, meanwhile, a motor can drive blades to rotate through a rotating shaft, so that the fairy shrimp eggs are evenly distributed in hatching liquid, in addition, when the rotating shaft rotates, a push rod can make contact with a stress block, a piston is pushed by the stress block to move towards the interior of a sleeve, and when the piston moves, the stress block is pushed into the sleeve. Air in the sleeve can be pushed into the transverse pipe from the vertical pipe, the air spraying head on the transverse pipe can spray the air out, the content of dissolved oxygen in hatching liquid is increased, meanwhile, upward water flow is formed in the hatching liquid, the phenomenon that the eggs of the fairy years sink to the bottom is avoided, it is guaranteed that the eggs of the fairy years can receive proper heat, and the hatching rate is increased.

The present application relates to the field of animal embryo engineering technology, and provides a method for improving the development ability of bovine IVP embryos. In the production of bovine in vitro embryos, by adding PAPPA, ergothioneine and selenocysteine to the bovine oocyte in vitro maturation culture solution, early embryo culture solution, late embryo culture solution, freezing solution and thawing solution, the in vitro maturation performance of oocytes and the development performance and vitality of the subsequent obtained embryos can be effectively improved. Studies have shown that after adding the above additives, the maturation rate of oocytes, the cleavage rate, the blastocyst rate of embryos, and the freezing survival rate, the hatching rate and the ATP content of embryos after freezing preservation are significantly improved, which has important application value.

The application provides an artificial breeding method of Onychostoma wujiangense, and belongs to the technical field of aquatic animal breeding. The artificial breeding method of Onychostoma wujiangense comprises the steps of parent fish classification, parent fish cultivation, artificial parturition induction, natural insemination, artificial insemination, fertilized egg hatching, larva cultivation and juvenile fish cultivation. The parturition induction agent is reasonably matched, the parturition induction injection time is accurate, the parturition induction rate, the fertilization rate and the hatching rate are improved, and the parent fish damage is small. The application also clearly defines the feeding methods at different stages of seed cultivation, improves the survival rate of Onychostoma wujiangense seed cultivation stage, and lays a technical support for the artificial breeding of the endangered species Onychostoma wujiangense.

The invention relates to a grouper crossbreeding method. The method comprises the four steps of parent breeding, temperature-sensitive domestication, artificial spawning and insemination, incubation and fry breeding, specifically, cold water-based clear water stone spots and hot water-based brown spot stone spots are selected as parents, the clear water stone spots are used as female parents, the brown spot stone spots are used as male parents, and the middle water temperature is adapted through gradient temperature-sensitive domestication; stress-resistant feed containing hilsa herring egg source peptide and haematococcus pluvialis astaxanthin ester and a temperature-sensitive blender are matched, a reproductive care agent is supplemented to strengthen sperm and egg performance, and normative spawning induction, insemination and graded cultivation processes are adopted. According to the method, the problems of poor water temperature adaptation and low hatching rate of grouper hybrid sperms and eggs in different temperature areas are solved, the wide-temperature property of filial generations is improved, the method adapts to the water temperature of 18-28 DEG C, the hatching rate, the fry survival rate, the adult fish survival rate and the average weight of single fish are remarkably improved, and technical support is provided for industrial application.

This utility model discloses a black soldier fly egg collection device, comprising a frame, wherein an attraction lamp or attraction box is provided in the frame, and an attraction agent is provided in the attraction box. Multiple collection troughs are arranged sequentially from top to bottom within the frame, with a spacing of 8mm to 15mm between adjacent collection troughs. Each collection trough consists of upper and lower collection strips, with a spacing of 2mm to 4mm between the upper and lower collection strips. The sequentially arranged collection strips facilitate the female black soldier fly to climb on both sides and lay eggs in both directions. The 8mm to 15mm spacing between adjacent collection troughs ensures that the female black soldier fly lays eggs only within the space of the collection trough, thereby improving the egg hatching rate.

The utility model relates to the technical field of freshwater fish culture, and particularly discloses a fish hatching device which comprises a base, a hatching box is installed on the base, and a water collecting tank is arranged on the periphery of the hatching box. The water spraying assembly is arranged at the top of the incubator and comprises a supporting frame connected with the incubator, and the driving motor is installed on the surface of the supporting frame; the water spraying assembly comprises a water spraying pipe and a supporting seat, the water spraying pipe is fixedly connected with an output shaft of the driving motor, a water inlet end is arranged on the surface of the water spraying pipe, one end of the supporting seat is rotationally connected with the water inlet end, and the other end of the supporting seat is fixedly connected with an external water pipe. The conical part is arranged, so that sewage can be conveniently discharged when the interior of the barrel is cleaned before roe hatching, fries can be conveniently put after roe hatching, and when a water source in the hatching box is continuously increased, the water source overflows from the top of the cylinder part, so that the flowability of the water source in the hatching box is kept, and the roe hatching rate is effectively increased.

A method for promoting ovarian development of pelteobagrus vachelli belongs to the technical field of fish culture, and is characterized in that in the pelteobagrus vachelli culture process, a functional additive is fed at the ovarian development preparation stage and the ovarian development strengthening stage, and the functional additive is prepared by mixing epigallocatechin gallate and compound unsaturated fatty acid, adding the compound unsaturated fatty acid into the mixture, and stirring to obtain the functional additive for promoting the ovarian development of the pelteobagrus vachelli. Beta-cyclodextrin is firstly adopted for inner layer embedding, then chitosan is adopted for outer layer coating, the microcapsule is prepared, and the composite unsaturated fatty acid is composed of monounsaturated fatty acid and polyunsaturated fatty acid according to the volume ratio of (0.8-1): (1-1.2). EGCG and compound unsaturated fatty acid are compounded and embedded to prepare microcapsules, the microcapsules are added into feed for feeding, ovarian development of pelteobagrus vachelli is effectively promoted, the number of oocytes of pelteobagrus vachelli is increased, meanwhile, the cell proportion of III-stage oocytes is increased, the reproductive capacity of pelteobagrus vachelli is effectively improved, the survival rate of pelteobagrus vachelli is increased, and the survival rate of pelteobagrus vachelli is increased. The egg laying amount, the fertilization rate and the hatching rate are improved.

The invention discloses a method for inhibiting development of silkworm eggs, and belongs to the technical field of agricultural biology. Aiming at the technical problems that castor silkworms have multiple generations in one year due to the non-diapause characteristic, the feeding cost is high and the breeding risk is large, the invention provides a technical scheme for delaying incubation by accurately controlling low-temperature treatment opportunity and parameters. The method is characterized in that castor silkworms lay eggs at the temperature of 25-26 DEG C, the castor silkworms are cultivated at the temperature of 25-26 DEG C for 15-20 h after egg laying, then cooling treatment is conducted, silkworm eggs are placed in a low-temperature environment of 5-8 DEG C to be refrigerated for 5-6 d, and finally the silkworm eggs are transferred to a standard hatching environment with the temperature of 25-28 DEG C and the relative humidity of 75%-85% to recover development till hatching. The method can effectively prolong the egg period of ricinus communis, reduce annual breeding generations, facilitate adjustment of feeding work time arrangement, remarkably reduce the breeding cost and risk, and meanwhile keep good hatching rate and vitality.

The application provides alligator feed, an alligator feeding method and application, and relates to the technical field of alligator breeding. The alligator feed with high meat yield rate comprises fish, fish meal, vitamins, calcium powder, medicinal materials and probiotics; the fish meal comprises fish, shrimps and land animal meat; and the medicinal materials comprise at least one of malt, houttuynia cordata and hawthorn. Through the alligator feeding method, the alligator feed is fed, the meat yield rate, the egg production rate of alligators, and the fertilization rate and the hatching rate of alligator eggs are improved, the alligator feeding system has high economic benefits, and the preparation method of the alligator feed is simple and efficient.

This utility model discloses a multi-layer chick incubator that is easy to clean, including a box body and sliding guide rails disposed on both sides of the box body, and a pull-out assembly slidably disposed within the sliding guide rails. Multiple sets of sliding guide rails and pull-out assemblies are correspondingly arranged along the height direction. It also includes a heating assembly and a humidifying assembly. The pull-out assembly includes a support compartment with two ends slidably disposed on the two sliding guide rails via sliders. The support compartment has a storage cavity, and a collection drawer slides within the storage cavity. The collection drawer is a cuboid structure with an open top, and its left and right edges are slidably connected to the slide rails of the storage cavity. The collection drawer passes through the storage cavity and extends to the outside. A support recess is provided at the top of the support compartment, and positioning posts are provided at the four corners of the support recess. It also includes an incubation rack. This utility model relates to the technical field of poultry incubation equipment, specifically providing a multi-layer chick incubator that is easy to clean.

The utility model discloses a salmon and trout roe hatching device relates to hatching device technical field, including outer box and hatching box, the inside of outer box is equipped with hatching box through rotating shaft, the inside of hatching box is equipped with fixed column, the top of outer box is equipped with connecting strip, the top of fixed column is equipped with transmission shaft, and the transmission shaft is equipped with transmission shaft. A dispersion fan is mounted on the lower surface of the connecting strip; a water tank is mounted on the left side of the outer box; an overflow pipe is mounted above the left side of the water tank; placing plates are installed on the left side and the right side of the fixing column through hinge bases correspondingly, limiting plates are installed on the left side and the right side of the fixing column correspondingly, and limiting bolts are installed on the limiting plates. According to the salmon and trout roe hatching device, the dispersing fan blows air to the placing plate, so that salmon and trout roes on the placing plate are dispersed preliminarily, sufficient space is provided for the roes, mutual extrusion is reduced, material exchange in a hatching environment is facilitated, the breathing efficiency of the roes is improved, and healthy development of the roes is promoted.

The utility model discloses a kind of egg frame bearing mechanisms that can swing, including bearing assembly, multiple bearing assemblies are connected by multiple connecting plates with array distribution, multiple bearing assemblies are rotationally arranged on the pivot, and bearing assembly includes octagon frame, multiple supporting plates are arranged with equal intervals in octagon frame, and the top surface of both ends of supporting plate is fixedly connected with stop block, and supporting plate is provided with detachable locking assembly to limit egg frame. By placing multiple egg frames in turn on the supporting plate of the same height of adjacent octagon frame, and using locking assembly to limit the outermost egg frame, so that multiple egg frames are close to each other, multiple egg frames are limited between stop block and locking assembly, intermittent reciprocating rotation of multiple bearing assemblies is driven by the pivot, and egg frame reciprocates with bearing assembly, so that each egg is evenly turned, embryo tissue and eggshell endoderm are prevented from adhering, embryo development is normal, and hatching rate and gosling quality are improved.

The application provides a strong diurnal temperature range water area schizothorax ova low temperature-high temperature stimulation membrane rupture and double high water temperature tolerance threshold experiment method, including: step one, determining the diurnal extreme value and amplitude of the hatching water temperature of the schizothorax ova; step two, realizing the diurnal amplitude hatching water temperature; step three, key water temperature control of membrane rupture; step four, low temperature-high temperature stimulation large-scale membrane rupture; step five, determining the double high water temperature tolerance threshold. The application determines the diurnal extreme value and amplitude of the hatching water temperature of the natural reproduction ova, designs different diurnal amplitude hatching water temperature experiment hatching ova, simulates the natural hatching environment of the Qinghai-Tibet Plateau river with large diurnal water temperature difference under climate change; through the indoor ova water temperature gradient experiment, the low temperature-high temperature stimulation membrane rupture mechanism of the Schizothorax grahami, the double high water temperature tolerance range and threshold of the key fish in the source region of the Yangtze River are found, and scientific support is provided for the protection and restoration of the fish resources in the source region of the Yangtze River under the background of climate warming.

The utility model provides a duck egg incubation heat preservation buffer tray. Comprising a tray, a placement groove block is fixed to the tray, a placement groove is formed in the placement groove block, a buffer protection pad is arranged on the inner wall of the placement groove, an air bag is arranged at the bottom of the inner wall of the placement groove, a heater is fixed to the bottom of the tray, a water storage box is fixed to the heater, and a water pump is arranged on the water storage box; a heat exchange circulating pipe is arranged on the water pump and located at the bottom of the tray, a storage battery is arranged on the heater, a clamping groove is formed in the tray, a handle is fixed to the tray, and a key is arranged at the bottom of the water storage box. The duck egg incubation heat preservation buffer tray solves the problems that an existing tray cannot provide a relatively stable incubation temperature environment for duck eggs, the duck eggs are prone to being vibrated and collided by the outside in the incubation process, embryo development and even death are caused, and the incubation rate is not increased.

This invention belongs to the field of acidifier technology, specifically relating to an acidifier that can improve the health of breeding ducks and the hatchability of hatching eggs, its preparation method, and its application. The acidifier includes acidifier A and acidifier B. Acidifier A is prepared by mixing and adjusting the volume of calcium formate, acetic acid, lactic acid, monk fruit extract, and an immune enhancer; acidifier B is prepared by mixing and adjusting the volume of calcium propionate, citric acid, malic acid, stevia extract, and an antioxidant. This invention enhances the immunity and antioxidant capacity of breeding ducks and improves eggshell quality by intermittently and alternately adding the two acidifiers to their drinking water during the egg-laying period. Furthermore, by spraying a proportionally diluted mixture of the two acidifiers during the later stages of hatching, it improves embryonic calcium absorption and duckling shell-pecking rate, reduces embryonic mortality, and significantly increases the hatchability of hatching eggs. This invention is suitable for large-scale breeding and hatching of breeding ducks.

The utility model discloses a freshwater fish fry hatching device which comprises a breeding tank mechanism, a breeding cage mechanism and a running water mechanism, a first connecting pipe and a second connecting pipe are arranged at the two ends of a water purifier respectively, the first connecting pipe is communicated with a discharge pipe through a second pipeline pump, and the second connecting pipe is communicated with a first pipeline pump and an absorption pipe. The absorption connecting end and the discharging connecting end are communicated with the breeding cavity through connecting through grooves in the two sides of the breeding tank body respectively, a first pipeline pump is arranged between the second connecting pipe and the absorption pipe, and a second pipeline pump is arranged between the first connecting pipe and the discharging pipe. The first pipeline pump and the second pipeline pump are started to suck water in the breeding chamber from the absorption connecting end, and the water sequentially passes through the absorption pipe, the second connecting pipe, the first connecting pipe and the discharge pipe and finally passes through the discharge connecting end to enter the breeding chamber, so that simulation of flowing water in rivers and streams can be realized, and real flowing water breeding is realized; the hatchability of the fries can be improved.