44results about How to "Improve hatching survival rate" patented technology

The invention relates to incubation and cultivation methods of agkistrodon acutus. An incubation method comprises the following steps of: egg selection and incubation, wherein the incubation comprises the following technical points of: a, controlling the incubation temperature to be 26-30 DEG C; b, controlling the relative incubation humidity to be 88-96 percent; c, incubating for about 23 days; and d, checking eggs timely, and processing mucid eggs: checking the eggs through lighting once a day to see whether mildew or fertilization occurs or not, and processing timely so as to avoid affecting other eggs. A cultivation method comprises the following steps of: feeding of the eggs, overwinter cultivation of the of agkistrodon acutus, and feeding and management of the of agkistrodon acutus. The incubation and cultivation methods of the agkistrodon acutus have high snakelet incubation survival rate, and fast agkistrodon acutus growth, and are suitable for large-scale artificial breeding.

The invention belongs to the fish breeding field, and specifically relates to a germ cell hatching method in a Micropterus salmoides early breeding process; the hatching method comprises the following steps: setting up a hatching greenhouse, wherein the hatching greenhouse comprises a hatching pond and a greenhouse body arranged on the hatching pond; placing an artificial fish nest attached with germ cells into the hatching pond; setting up a temperature control system in the hatching greenhouse; controlling the hatching pond water temperature to be at 25-28 DEG C. Furthermore, setting up a matching hatching water filter system on the hatching pond upper stream, and setting up a water discharge structure on the hatching pond downstream. Test shows, by setting up the temperature control system in the hatching pond and controlling the hatching pond water temperature to be at 25-28 DEG C, the Micropterus salmoides germ cells can be effectively prevented from getting saprolegniasis, thus greatly improving hatching survival rate of the germ cells. The hatching water filter system can ensure the hatching water quality and prevent hostile organisms from entering the hatching pond; the water discharge structure can be used for replacing water for the hatching pond, or applied in water flow operations.

The invention relates to the technical field of aquaculture, in particular to a soft-shelled turtle egg artificial incubation method. The method comprises the steps of selecting fertilized soft-shelled turtle eggs, mixing water, coarse sand and wheat straws according to the weight ratio of 1 to 5 to 2 and laying in an incubation pool, moving the soft-shelled turtle eggs to the incubation pool, keeping the incubation temperature at 27 to 28 DEG C, irradiating the soft-shelled turtle eggs with He-Ne lasers in an incubation process, moving larva soft-shelled turtles to a cultivation pool after shell breaking of the soft-shelled turtle eggs, irradiating with fluorescent lamps of the illumination intensity of 1500 to 1700lx for 24 hours every day in a cultivation process, mixing white fish meal, pelvetia silquosa, herba houttyniae, laver powder, powdered Minoru thorns, egg yolk powder, sesame oil, peanut meal and glutinous rice flour according to the weight ratio of 2 to 3 to 7 to 2 to 4 to 2 to 1 to 10 to 3 and adding water and rolling to be granular with the grain size smaller than 1mm in the cultivation process, applying in the cultivation pool, applying twice every day, and applying for 20 to 22g/square meter each time.

The invention discloses a testudinate hatching pond which comprises a pond body, wherein a hatching area, a seedling temporary storage area and a ramp way for connecting the hatching area with the seedling temporary storage area are arranged at the bottom of the pond body; the hatching area comprises a fence arranged at a position higher than the seedling temporary storage area; and seedling outlets are arranged on corners of the fence; and a hatching layer is arranged in the fence and comprises a fine sand layer and a mellow soil layer. A natural environment for hatching the testudinate can be created and the hatching survival rate of the testudinate is increased. The testudinate hatching pond is simple in structure and is easy to realize.

The invention discloses an agricultural fish fry hatching pond device, and relates to the technical field of agriculture. The problems that garbage in a pond is accumulated at the bottom in the roe hatching process, cleaning is difficult, and the hatching rate of fish fries is affected are solved. The device specifically comprises a pool body, a plurality of water inlet pipes of a three-way structure are fixedly installed at the end of the pool body, two water inlet valves are fixedly installed at the ends of the water inlet pipes, a plurality of drainage pipes of a three-way structure are fixedly installed at the other end of the pool body, and two drainage valves are fixedly installed at the ends of the drainage pipes. Roes fall into the upper portion of the hatching tray in an accelerated mode through water potential, water flows in and out of the middle layer in the hatching stage, garbage generated by big fishes above can be washed away while pond water is replaced, a valve at thelower end is opened regularly, water flows in and out downwards, garbage at the bottom of a pond is washed away, various water inlet and outlet modes can achieve the effects of changing and cleaningwater in the pond, and the hatching survival rate of fish fries is increased.

The invention discloses a novel hatcher having temperature control and young pick-up reminding functions, comprising a box, a hatching tray, a temperature adjusting module, a pressure sensing module,an information transmission module and a power source. The power source supplies power to the modules. The temperature adjusting module is composed of a semiconductor cooler and a temperature sensor control module; the temperature is monitored through a sensor; a semiconductor is started through a temperature control switch to carry out cooling or heating. The pressure sensing module comprises a plurality of pressure sensors and an information processing module; the pressure sensors acquire a pressure value of the bottom of each cavity in the hatching tray; the information processing module collects the pressure values from the pressure sensors; the pressure values are compared with those acquired previously to judge whether pressure changes occur. After the information processing module detects the pressure changes, a notification is sent out to remind hatching and young picking-up. The novel hatcher herein can increase or decrease its temperature and can inform of hatching or not remotely in real time so as to remind of young picking-up.

The invention discloses a loach fry hatching device. The loach fry hatching device comprises a mounting rack, an upper barrel body and a lower barrel body, wherein both the upper barrel body and the lower barrel body are inverted conical structures, the upper barrel body is movably arranged on the mounting rack, an overflow groove is formed in the upper end of the upper barrel body, a screen mesh is arranged in the overflow groove and can completely cover an upper barrel body opening, a water outlet pipe is arranged at one end of the overflow groove and is connected with a water purifying device, a communicating pipe is arranged at the bottom of the lower barrel body and communicates with the lower barrel body, the lower end of the communicating pipe communicates with a fry outlet pipe and a water inlet pipe separately, the other end of the water inlet pipe communicates with the water purifying device, a fry outlet valve is arranged at the joint of the fry outlet pipe and the communicating pipe, a water inlet valve is arranged at the joint of the water inlet pipe and the communicating pipe, a concave circular baffle is arranged above the communicating pipe, a plurality of connecting bars are uniformly arranged around the circular baffle, and a plurality of aerators are uniformly arranged on the internal wall of the upper barrel body. According to the loach fry hatching device, through the cooperative action of the aerators and the circular baffle, the direction of water flow is changed, the amount of dissolved oxygen in barrels is increased, and the survival rate of hatching is increased.

The invention discloses a management method of high-quality hatching eggs of laying hens, and relates to the technical field of laying hen breeding. The method comprises the following steps of hatching egg collection, hatching egg selection, transportation and hatching egg cleaning. The management method of the high-quality hatching eggs of the layer hens has the advantages that the hatching eggs of the laying hens are reasonably collected according to the growth requirements of the hatching eggs strictly, the survival rate of hatch is high, the physique is healthy, science and standard are achieved, collection is convenient and easy, egg bodies are even, the economic benefit of a farmer is guaranteed, and the breeding interest of the farmer is stimulated.

The invention discloses an egg breeding method for whitmania pigra and belongs to the technical field of aquatic product breeding. The egg breeding method for the whitmania pigra comprises the following steps of preparation of a breeding place, selection of breeding whitmania pigra, disinfection of the breeding whitmania pigra, mating and fertilization and egg cocoon incubation. The breeding place facilitates incubation and growth of the whitmania pigra, the breeding success rate of the whitmania pigra can be remarkably increased, an incubator can provide a reliable growth environment for the whitmania pigra and improve the breeding efficiency of the whitmania pigra, a modified composite film is laid in a cement breeding pond and used for adsorbing Cu and Cd heavy metal in soil, the safety of the soil is guaranteed, the incubation survival rate of egg cocoons is made to reach 92%, the quality of young whitmania pigra is improved, the breeding risk is reduced, and great economic benefits are achieved for healthy development of the artificial breeding industry of the whitmania pigra.

The invention discloses a manufacturing method of an egg collector for laying of adhesive eggs and relates to the technical field of aquaculture. The manufacturing method comprises the following steps: making ribbons with widths of 2 to 10mm and lengths of 20 to 50cm, bundling up 10 to 20 ribbons from the middles of the ribbons, tying a lifting rope at the bundling position and tying the top end of the lifting rope on a cross bar; arranging the bundled ribbons in an ointment to soak for 20 to 30 minutes; then transversely fixing the cross bar at the position, which is at a distance of 5cm from the water surface, above the water surface, so that the bundled ribbons naturally droop to the position, which is at a distance of 15 to 20cm from the water surface, below the water surface and the bundled ribbons can be used as the egg collector for fishes to lay eggs. The manufacturing method has the beneficial effects that the manufacturing method, which is provided by the invention, of the egg collector for laying of the adhesive eggs is suitable for large-scale production of fishes which lay the adhesive eggs; the manufacturing method has the advantages of simple use method, convenience and rapidness for operation, high incubation survival rate, low production cost and the like; materials for making the egg collector are easy to obtain; production of fish fries are not limited to materials.

The invention relates to pellet feed for parent fish reproduction of clownfish and a preparation method thereof, and belongs to the field of aquatic feed. The pellet feed consists of, by mass percentage, 56% of fish meal, 5% of vital wheat gluten, 8% of seaweed powder, 14% of flour, 2% of yeast, 1% of multi-vitamins, 1% of compound minerals, 0.1% of vitamin C, 0.4% of allicin with 25% content, 2.5% of astaxanthin with 2% content, 1.25% of arochidonic acid oil with 40% content and 8.75% of fish oil. The parent fish of clownfish can be robust in body constitution, strong in vitality, stable in egg laying, large in egg laying amount, orange in egg color and high in hatching survival rate by feeding the pellet feed prepared by the above raw materials to the parent fish of the clownfish.

The invention discloses an agricultural fry hatching pond device, and relates to the technical field of agriculture. In order to solve the problems that garbage in a pond is accumulated at the bottomin the fish egg hatching process, cleaning is difficult, and the hatching rate of fries is affected, the agricultural fry hatching pond device specifically comprises a pond body, a plurality of waterinlet pipes of three-way structures are fixedly mounted at the end parts of the pond body, two water inlet valves are fixedly mounted at the end parts of each water inlet pipe, a plurality of water discharge pipes of three-way structures are fixedly mounted at the other end of the pond body, and two water discharge valves are fixedly mounted at the end parts of each water discharge pipe. Accordingto the agricultural fry hatching pond device, the fish eggs fall into the upper portion of a hatching disc in an accelerated manner by means of water potential, middle layer water inlet and outlet are carried out in the hatching stage, garbage generated by big fishes on the upper portion can be flushed away while pond water is replaced, the valves at the lower ends are opened regularly, and therefore water flow are subjected to bottom inlet and bottom outlet, and the garbage at the pond bottom is flushed; and multiple water inlet and outlet manners can achieve the effects of changing water inthe pond and cleaning the pond, and the hatching survival rate of the fries is increased.

The invention relates to the technical field of marine product hatching and culturing, in particular to a hatching device for marine products, and aims at providing the hatching device for the marineproducts. The device comprises a hatching structure, a water tank, a water inlet pipe and a water draining pipe, wherein the water inlet pipe is used for introducing water in the water tank into the hatching structure, and the water draining pipe is used for discharging water in the hatching structure into the water tank; the hatching structure includes a bracket and a plurality of tubular hatching pipes, and the hatching pipes are vertically fixed to the bracket side by side; the upper and lower ends of each hatching pipe are of open structures, and sealing covers are detachably disposed at the lower ends of the hatching pipes; the water inlet pipes are connected with the water tank and the openings of the upper ends of the hatching pipes through a water pump, the water draining pipe penetrates through the sealing covers to be connected with the hatching pipes, and an air pipe connected with an air pump penetrates through the sealing covers. By using the device, the hatching survivalrate of eggs is increased.

The invention is applicable to the technical field of soft-shelled turtle culture, and provides a culture method for increasing the soft-shelled turtle egg laying amount. The method comprises the following steps of arranging loam at the bottom of a culture pond, applying combined fertilizer, injecting clear water, and regulating the pH value of the clear water; arranging an egg laying site at a quiet place of the culture pond, arranging the egg laying site in a sun-shading manner, and laying wet silt on the egg laying site; releasing young soft-shelled turtles according to the stocking densityof 20-30/m<2> and the male-female ratio of 4-5: 1, controlling the water temperature to be 30-35 DEG C, enabling a water body to be transparent by 30 cm, and enabling the water changing amount each time not to exceed 1/8; feeding feed for 1-2 times every day, wherein the feeding amount is 5-8% of the total weight of the male and female soft-shelled turtles; making an inspection tour for the culture pond in the morning and evening, cleaning residual bait in time, and changing water in time; and feeding the soft-shelled turtles with snails, mussels, and little fishes and shrimps every 20-25 days, wherein the feeding amount is 4% of the total weight of the male and female soft-shelled turtles. The culture method of the soft-shelled turtles can effectively improve the survival rate of the soft-shelled turtles and the egg laying rate of the female soft-shelled turtles.