35results about How to "Reduce the likelihood of disease" patented technology

The invention discloses a high-yield breeding method of freshwater shrimps in a pond in summer. The high-yield breeding method includes: selecting a pond without sludge at the bottom, draining water in the pond in late June, exposing the pond under blazing sun, and uniformly scattering quicklime at the bottom of the pond; injecting water into the pond at early July, uniformly sowing and planting Hydrilla varticillata, planting Alternanthera philoxeroides in a shallow region of the pond, and injecting water; arranging summer flower net in the middle of the pond; in an early morning of a sunny day in late July, placing young shrimps into the pond, and then placing silver carps into the pond; after the young shrimps and the silver carps are placed into the pond, feeding fine granulated feed a time every morning and every afternoon; after a period of time, feeding rough granulated feed a time every morning and every afternoon; putting quicklime and a copper sulfate water solution into the pond every other period of time; from later August to time of fishing, extracting water at the bottom of the pond a time every week, supplementing fresh water to reach a water level before extraction, and regularly pumping air into the pond every day; after a period of time, selecting the afternoon of a cloudy day for fishing.

The invention discloses a vat breeding method for opisthoplatia orientalis and belongs to the field of eupolyphaga sinensis breeding technology. According to the breeding method, a vat is used for breeding, feeding soil, sticks or boards, straw or tiles and pine twigs are added into the vat to guarantee humidity of the breeding environment, and therefore growth and reproduction of the opisthoplatia orientalis are promoted. Besides, the invention furthermore provides feeding management and deinsectization management in the breeding process. The breeding method is simple and easy to implement, and raised opisthoplatia orientalis are large in size, good in quality, high in survival rate and reproductive rate and beneficial for large-scale popularization.

The invention discloses a tunnel lining leakage water diversion and drainage mechanism with a compensation function and a using method thereof. The mechanism solves the problem of low guide and drainage capacity of a diversion and drainage pipeline in the prior art and has the advantages that the diversion and drainage capacity of the diversion and drainage pipeline can be increased and the driving safety of a tunnel is ensured. According to the scheme, the tunnel lining leakage water diversion and drainage mechanism comprises a water receiving part arranged on the inner wall of a tunnel lining, the water receiving part is communicated with a longitudinal diversion and drainage pipe, the longitudinal diversion and drainage pipe is arranged in the length direction of a tunnel maintenance channel, the longitudinal diversion and drainage pipe is provided with a compensation diversion and drainage pipe, the compensation diversion and drainage pipe is provided with a switch valve, and the compensation diversion and drainage pipe can rotate relative to the longitudinal diversion and drainage pipe.

The invention discloses a springtime high-yield freshwater shrimp breeding method. The springtime high-yield freshwater shrimp breeding method comprises the steps that a pond free of silt at the bottom is selected, pond water is complete pumped out in the first ten-day period of January, then the pond is exposed to the sun, and quick lime is evenly scattered at the bottom of the pond; after water injection is performed in first ten-day period of February, hydrilla verticillata is sowed and planted at the bottom of the pond, water injection is performed, then alternanthera philoxeroides are planted in a shallow water zone of the pond, and water injection is performed; a summer flower net is arranged in the middle of the pond; shrimp larvae are put in the pond in the early morning of fine days in the first ten-day period of March for a period of time, and then silver carps are put in the pond; after putting, a fine-grain feed is put for one time in the morning and afternoon every day; fishing is performed the last ten-day period of May, water at the bottom of the pond is pumped for one every week to make the water level in the pond lowered, then fresh water is supplemented to reach the previous water level before water pumping, and meanwhile air is pumped into the pond; fishing is performed in the afternoons of cloudy days after a period of time after putting.

The invention discloses a high-yield culture method for improving immunity of freshwater shrimps in summer. The method comprises the steps that a pond free of sludge at the bottom is selected, after pond water is pumped out in late June, the pond is insolated, and then quick lime is evenly scattered to the bottom of the pond; after water is injected in the first ten days of July, hydrilla varticillata is evenly scattered and planted in the bottom of the pond, then alternanthera philoxeroides is planted in the shallow water zone of the pond, and water is injected; then a summer flower net is arranged in the middle of the pond; young shrimps are put in the pond on a sunny morning in the last ten days of July, and then chubs are put in the pond; after the freshwater shrimps are put in the pond, the freshwater shrimps are fed with fine pellet feed once in the morning and afternoon every day; after a period of time, the freshwater shrimps are fed with rough pellet feed once in the morning and afternoon every day; quick lime and a copper sulfate water solution is put in the pond every other a period of time; from late August to fishing, the pond bottom water is pumped once every day, then a fresh water source is supplemented to the water level which is not lowered, and meanwhile air is pumped into the pond regularly every day; after the freshwater shrimps are put in the pond for a period of time, the freshwater shrimps are fished on a cloudy afternoon.