113results about How to "Improve breeding success rate" patented technology

The invention relates to a culture method for small and medium-sized litopenaeus vannamei and belongs to the technical field of aquaculture. The culture method specifically comprises the following eight steps of: pond clearing, water introduction, disinfection, bait organism culture, water quality detection, staged shrimp seed putting, staged culture, and small and medium-sized catching and harvesting. The method adopts strict treatment such as secondary sedimentation, disinfection and secondary filtration for water for culture at each stage, one-time water introduction and sealed culture to effectively isolate the invasion of external pathogens, and does not use drugs during the whole culture process, so that the product does not have drug residues and has good quality; the staged shrimp seed putting adopts a method of pure-oxygen aeration and dry transportation by putting shrimp seed into a netting cage, with lower shrimp seed damage rate which is generally controlled below 1.0%; and a three-stage culture mode is adopted for culture and can realize 5-generation culture throughout the year, with the average yield of 750-1,000kg/mu, the culture success rate higher than that of conventional culture by 20-30%, and the output value increased by 50% compared with a conventional mode.

The invention discloses a spiral grafting method of homophytic multi-strain camellias on the same branch. According to the spiral grafting method, the camellias of several strains and even dozens of strains can blossom on the same camellia tree, and the requirement for enjoying multiple kinds of camellias can be met. More limits on a rootstock or the camellia rootstock are not needed. Multiple kinds of camellias can be grafted to a camellia sinensis which is young, does not have a plurality of branches and can be used as the rootstock. According to the spiral grafting method, the cultivation period is shortened obviously, the success rate of grafting is improved at the same time, and the double indicators of the cultivation period and the success rate are guaranteed.

The invention discloses a method for grafting multi-strain tea flowers on the same rootstock. Several and even dozens of strains of tea flowers can be bloomed on a tea flower plant, and the requirement of the appreciation of a plurality of tea flowers in a small space can be met without any special requirement on the rootstock. In addition, the multi-strain tea flowers on the same rootstock are cultivated without trimming an original tea flower, so that new strains are cultivated while the original tea flower is appreciated, and the condition that an original plant type can be recovered only after a certain time is avoided. According to the method, a cultivation period is remarkably shortened, the grafting success rate is increased, and the dual indexes of cultivation period and success rate are ensured.

The invention provides an ecological young shrimp culture method for macrobrachium rosenbergii. The method includes the steps of preparing a young shrimp culture pond, preparing water used for young shrimp culture, obtaining young shrimp larvas, feeding bait, managing water quality, transferring the young shrimps to another pond, desalting for young shrimp emergence and the like. In the bait feeding process, the young shrimps are fed on natural bait unit cell algae, fairy shrimp nauplii and artificial bait egg custard, the natural bait is environmentally friendly and healthy, the articical bait is rich in nourishment, and nutritional ingredients are not prone to running off; when the water quality is managed, nuisanceless water quality ameliorant and microbial preparations are adopted to adjust the water quality. Hormones and poisonous chemicals are not used in the young shrimp culture process, the young shrimps are high in survival rate and grow healthily and strongly, young shrimp emergence is fast, and the ecological young shrimp culture method is low in cost, high in efficiency and capable of effectively increasing economic benefits of an aquaculture farm.

The invention discloses a biological prevention and control method for controlling prawn diseases through Tilapia. The method of the invention realizes the prevention for infectious diseases of the prawn and the increase of prawn survival rate by introducing Tilapia to prawn cultivation zones. The method of the invention can prevent prawn diseases from propagating and becoming epidemic in healthy prawn community, reduce the workload of manually removing diseased and dead prawns, enhance the removal efficiency and the cultivation success rate and bring tremendous economical benefit to the culturist.

The invention provides a hybrid breeding method of high-quality and high-end beef new variety Low-li cattle, and relates to the technical field of breeding. The breeding method comprises the steps of breeding management, raising management and cow house management. Good beef variety Limousin cattle is introduced to be hybridized with Hezhou local yellow cows to obtain high-quality binary hybridized cattle, then another high-quality variety Lowline cattle are utilized to conduct ternary hybridization with the binary hybridized yellow cow to obtain high-quality beef new variety Low-li cattle, and then artificial breeding is conducted on the new variety Low-li cattle obtained by hybridization by stages to finally obtain the high-end beef. By means of the hybrid breeding method, the high-quality and high-grade beef new variety Low-li cattle have the advantages of coarse fodder resistance, cold resistance and high disease resistance, the dressing percentage and the pure meat percentage are both far higher than those of domestic cattle, through the utilization of hybridization advantages, the close crossing status quo of local cattle due to long-term closeness is changed, the variety of cattle is improved, and high-end beef needed by people is obtained.

The invention discloses automatic hermetia illucens breeding equipment. The automatic hermetia illucens breeding equipment comprises a hermetia illucens larva area and an adult hermetia illucens area,wherein the hermetia illucens larva area comprises a hermetia illucens larva breeding chamber, a rotary breeding mechanism and an automatic feeding mechanism; the rotary breeding mechanism comprisesa rotary disc and a rotary driving mechanism; a plurality of breeding boxes are arranged on the rotary disc; the hermetia illucens larva breeding chamber is provided with an egg input channel and a hermetia illucens larva output channel; a hermetia illucens larva transfer outlet is arranged on each breeding box; the automatic feeding mechanism comprises a feeding pipeline; the adult hermetia illucens area comprises an adult hermetia illucens breeding chamber, an egg collecting mechanism and an egg picking mechanism; the egg collecting mechanism comprises an egg collector which comprises an eggcollecting plate; and an egg collecting hopper is arranged below the egg collector. The automatic breeding equipment provided by the invention integrates breeding of hermetia illucens larvae and adult hermetia illucens, can achieve fully-automatic hermetia illucens breeding work, does not need manual participation, facilitates large-scale and modular breeding work, and has the advantages of simple structure, low breeding cost and the like.

The invention discloses an anti-heat-stress Chinese herbal medicine composite feedstuff additive for meat ducks. The feedstuff additive provided by the invention is prepared from a composition of a plurality of Chinese herbal medicines. With the feedstuff additive, meat duck discomfort caused by stress under high-temperature state can be relieved, and meat duck heat stress resistance can be improved.

The invention discloses low-protein compound feeds for litopenaeus vannamei and a preparation method for the low-protein compound feeds. The compound feeds comprise the following air-dried components in percentage by weight: 5 to 15 percent of krill meal, 10 to 25 percent of chicken meal, 15 to 20 percent of soybean meal, 15 to 20 percent of peanut cake, 20 to 35 percent of high-gluten flour, 3 to 8 percent of nucleic acid yeast, 2 to 3 percent of calcium dihydrogenphosphate, 2 to 5 percent of soybean phospholipil oil, 1 to 3 percent of fish oil, 1 percent of vitamin premix and 1 percent of mineral premix. According to the compound feeds, fish meal and cuttlefish paste are completely avoided, so that dependence on imported fish meal, cuttlefish paste and cuttlefish meal can be eliminated, the production cost can be lowered, and the safety of a product can be improved; the compound feeds are high in efficiency, environment-friendly and low-protein, and comprise 34 to 36 weight percent of crude protein, and compared with that of commercially available compound feeds, the crude protein content of the compound feeds is 4 to 6 percent lower, so that pollution to a breeding water body is reduced, and equivalent feeding effects are achieved; the stress resistance of the litopenaeus vannamei can be improved, and the breeding success rate can be increased; the body color of a bred litopenaeus vannamei finished product can be improved, and the price of commercial litopenaeus vannamei can be risen.

The invention discloses a Chinese herbal medicine feed additive capable of controlling diseases and promoting growth for penaeus vannamei and a preparation method of the additive. The feed additive is a compound Chinese herbal medicine feed additive capable of increasing the growth rate of the penaeus vannamei and improving the nonspecific immunity of the penaeus vannamei and is prepared from chrysanthemum flower powder, asplenium powder, seaweed powder, mulberry leaf powder, buds of Japanese pagoda trees, common yam rhizomes, lotus seed cores, perilla frutescens, lotus leaves, moringa oleifera, panax notoginseng, herba houttuyniae, rhizoma imperatae, fructus schizandrae, Chinese galls, honeysuckle flowers, cortex phellodendri, radix scutellariae, milkvetch roots, radix angelicae sinensis, radix codonopsis and radix isatidis. The preparation method comprises the steps that all the raw materials are weighed according to the weight percent in the formula; all the materials are crushed, mixed to be uniform and then crushed through an ultrafine grinder, screening is conducted through a 100-150-mesh sieve, and a finished feed additive product is obtained. The additive with the weight accounting for 1%-3% of the total weight of complete formula feed for the penaeus vannamei is added into the feed and used for increasing the growth rate of the penaeus vannamei and improving the nonspecific immunity of the penaeus vannamei. The feed additive is green, environmentally friendly, capable of being used for large-scale industrial production and not generating drug resistance, safe, efficient and nontoxic.

The invention provides a breeding method of the tartary buckwheat variety, wherein the variety with improved properties is selected as the female parent, and the variety complementary to the variety with improved properties as the male parent, the male parent and the female parent are planted in a staggered row planting way, and artificial hybridization is performed to obtain F1 generation hybridseeds, 10 or more F1 generation hybrid seeds are selected, and the F1 generation seeds are sown again, until the F9 seeds are selected, and then the F9 seeds are sown by row planting to finally obtaina stable tartary buckwheat variety. The breeding method of the tartary buckwheat variety provided by the invention has high success rate of variety breeding, can overcome defects of blind planting existing in the breeding process of the hybrid offspring of the tartary buckwheat variety, and can realize standardized management of the hybrid offspring of tartary buckwheat.

The invention discloses a novel strain XD03S (CCTCC NO: M 2010036) of yeast, which is capable of being the parasitichost of phage bdellovibro. The invention further discloses a method for preparing phage bdellovibro preparation by using the yeast strain, which comprises the following steps of: (1) phage bdellovibro purification: taking escherichia coli as target cell, adopting liquid cultivation and a double-layer tap water agar combination method to separate phage bdellovibro base strains from the nature, then adopting a single dental plague passage method to carry out liquid cultivation and the double-layer tap water agar combination method to carry out continuous single dental plague passage purification of at least 10 generations, and obtaining the phage bdellovibro inbred strains with strong phagocytosis capability; and (2) culturing the phage bdellovibro inbred strains obtained in the step (1) and the yeast strain XD03S (CCTCC NO: M 2010036) in a composite way, and obtaining the phage bdellovibro preparation. The preparation method simplifies the production technology of the phage bdellovibro, and reduces sewage discharge and energy consumption.

The invention discloses a seawater shrimp pond ecological farming method. The seawater shrimp pond ecological farming method comprises following steps: 1) establishment of sea water ponds; 2) influent water treatment; 3) cleaning and bait organism culture; 4) selection and cultivation of early larvae; 5) feed selection and controllable bait feeding technique; 5) stability of water quality which improves purification capacity in pond water. The seawater shrimp pond ecological farming method has the advantages that the stability of water bodies, the acceleration of material circulation in water bodies and energy flow velocity are maintained, which improve the production stability, controllability, shrimp farming yield and success rate of breeding.

The invention discloses an energy-saving hot blast stove for farming. The energy-saving hot blast stove comprises a stove casing; a hearth is formed in the stove casting; the top of the hearth is provided with a sealed baffle wall; the side wall of the hearth is provided with a horizontal flue gas outlet which is connected with a horizontal fire baffle flue and a fire insulation flue gas communication device, so that high-temperature flame is effectively insulated and is converted into high-temperature flue gas, and the high-temperature deformation and damage of equipment is prevented; the fire insulation flue gas communication device is connected with a main flue gas heat exchange box which is connected with a flue gas steering box; the flue gas steering box is connected with a tail fluegas heat exchange box; air outlet air flow cavities are formed among the main flue gas heat exchange box, the tail flue gas heat exchange box and the stove casing, and air enters the air outlet air flow cavities, then is heated and enters a farming chamber; by the stove, temperature in a farming shed can be raised quickly; and the stove is high in heat utilization rate, and can supplement oxygen content in a sealed farming shed, effectively improve a farming environment, improve the farming success rate and reduce the farming cost.

The invention discloses a black soldier fly larva breeding device based on inclined transfer. The black soldier fly larva breeding device comprises a larva breeding chamber and a plurality of breedingboxes arranged in the larva breeding chamber, wherein the breeding boxes are arranged in the vertical direction; black soldier fly larvae are distributed into a plurality of larva age segments according to the larva age from young to old, and the black soldier fly larvae are sequentially bred in the breeding boxes arranged from top to bottom according to the larva age from young to old; and the breeding boxes are connected to the inside of the larva breeding chamber through a mechanism capable of turning downwards, a larva transfer outlet is formed in the end, which is away from the turning center, of each breeding box, and a transfer switch mechanism used for controlling the larva transfer outlet to be opened or closed is arranged at the larva transfer outlet. By the black soldier fly larva breeding device, the black soldier fly larvae are distributed into the larva age segments according to the growth rule of the larvae, the larvae in the different larva age segments are fed respectively, a flow-line automatic feeding mode is realized, and large-scale and modular breeding is facilitated.

The invention relates to a feed adjusting and controlling agent capable of improving propagation properties of breeding boars. Every kilogram of the feed adjusting and controlling agent contains 30-90g of beta-carotene, 30-100g of arginine activator additives, 50-120g of vitamin A, 10-60g of vitamin D3, 10-60g of vitamin E, 20-80g of vitamin C, 5-30g of biotin, 5-30g of folic acid, 10-60g of L-carnitine, 5-30g of carotene, 10-60g of organic selenium, 50-130g of organic chromium, 5-30g of organic zinc, 80-160g of feather meal and 250-350g of fatty powder. The feed adjusting and controlling agent capable of improving propagation properties of breeding boars can promote the propagation properties of the breeding boars, improve the birth quality of the breeding boars and improve the body condition of the breeding boars.

The invention relates to a special feed for rex rabbits for mating, which belongs to the technical field of production of rabbit feeds, has comprehensive nutrition, meets the nutritional requirement of rex rabbits for mating and can improve the mating success rate of rex rabbits. According to the technical scheme, the special feed for rex rabbits for mating comprises the following ingredients in parts by weight: 23 parts of soybean meal, 23 parts of corns, 20 parts of wheat bran, 14 parts of millet bran, 28 parts of grass meal, 3 parts of feed yeast powder, 3 parts of rapeseed meal, 1.5 parts of fish meal, 4 parts of salt, and 0.5 part of wood charcoal. The special feed can be widely applied to feeding of rex rabbits for mating.