It is best to use a calm and calm environment, with fresh water injection, fertile water, a low-lying mid-low tide area, and Hong Kong heart-sand continent. Other requirements: (1) Substrate: sand accounted for 70 to 80%, mud accounted for 20%; (2) salinity: 15 to 27 ‰; (3) flow rate: 10 to 40 cm/s; (4) water temperature: 10 to 28 °C. A urine analyser is a device used in the clinical setting to perform automatic urine testing. The units can detect and quantify a number of analytes including bilirubin, protein, glucose and red blood cells. Many models contain urine strip readers, a type of reflectance photometer that can process several hundred strips per hour. Uti Test Kit,Urine Testing Equipment,Urine Reagent Test Strip,Lose Weight Ketone Test Strips Changchun Medicon Technology Development Co., Ltd , http://www.jlmdk.com
The construction of seedlings and the construction of seedlings for the seedlings include embankments and improved sediments. The direction of the building, built with stones or a layer of mud layer of Miscanthus (ferns) stacked. In the place where the bottom is soft, pine wood is used for pile foundation. The bottom of the embankment is 1.5-2.0 meters wide, 0.8-1.2 meters high, and 0.8-1.0 meters wide. The inner embankment is perpendicular to the embankment, and most of them are buried in the soil. The tail is 20-30 cm long and 30-40 cm wide. The large seedlings are not conducive to the attachment of the seedlings, and the reefs are blown up to stabilize the ground. . Tide waves in the more urgent field can be inserted bamboo slow flow. The soft bottom of the sea area, with sand for improvement, depending on the situation of the bottom, 1000 to 2000 tons of sand per acre. The stones in the seedlings, the large shells must be removed, and then the pines are flattened. Before the attachment of seedlings, a further loosening and flattening work should be performed to facilitate the attachment of juveniles.
Retaining relatives and keeping relatives is a fundamental measure that cannot be ignored in the production of seedlings. The amount of pro-scallops should be based on the size of the bay in the Miao area. With reference to the experience of production practices over the years, there are generally thousands of tens of thousands of responsibilities.
Management of seedlings should be focused on different time and seedlings. Years of production experience have summarized the "five preventions" and "five diligent" management measures. The "five preventions" are: flood control, heatstroke prevention, antifreeze, prevention of trampling and protection against enemies. The "Five Diligence" is: patrolling frequently, diligently investigating seedlings, diligently repairing embankments, diligently digging trenches, and diligently removing pests.
Seedlings of seedlings are collected and grown for 5 to 6 months. The body length is generally 0.5 centimeters and they can be harvested. Picking time is mainly from April to May every year.
Picking method: not the same everywhere, there are dry tidal seedlings, shallow water seedlings and deep water seedlings. The first two methods are used to sprinkle intertidal zone seedlings, and the latter method is suitable for seedlings with water depth below 10 meters under the tide.
(1) Dry tidal power seedlings: When picking seedlings, seedling mites are divided into a number of plots, usually 5m square, with a swing plate with seedlings to advance 70 to 80 centimeters, and the advancing sand should be spread evenly. Second and third The tides are again loosened. Each time after pushing, the seedling food climbs up and concentrates on the surface when the tide rises. When the seedlings are concentrated on a small area of ​​1 to 1.5 meters square or a long strip of 0.5 meters wide, when the wash seedling requirements are reached, the seedling belt sand Scrape the seedlings on the sieve and wash them clean to obtain the seedlings.
(2) Shallow water seedlings: The seedlings will be divided into small pieces of about 8 meters in the tide, and the seedlings will be evenly distributed in the middle. The seedlings will climb upwards and concentrate on the surface when the tide rises. Then the center opened up a space with a diameter of about 3 meters. After a tidal wave, push the surrounding seedlings to the middle and call them "push the piles" and insert the signs. Then you can wash the seedlings. When people washed the seedlings, they drove the boat and when the tide retreated to more than 1 meter from the surface, the water was standing around the seedlings and hitting the water with their feet to push the seedlings toward the central tightly integrated pile. Finally, the bamboo shoots were used for fishing. Net, loaded into the boat.
(3) Deep-water seedlings: on the ship with polyethylene gel mesh fishing. The anchors were first selected and the anchor cables were loosened. The boat withdraws to a net of 30 to 50 meters following the flow, and then the winch was turned and the cable was advanced. The nets also advanced along with the ship and the seedlings were scraped into the net bags. Set up the net 10 meters away from the anchor, pull the net rope, wash the mud, and pour the seedlings into the boat. Then repeat the above process.
Seedlings can be transported by boats, steamboats, automobiles, etc. When transporting by ship, a “breathing cylinder†of 70-80 cm in height and 30 cm in diameter shall be placed in the shed, and the seedlings shall be poured into the tank around the ventilation tube to facilitate air circulation and avoid bilge sluice. The seedling died of dying. Use bamboo poles to carry seedlings for transportation by car. Each kilogram is 20 kilograms. Overlapped up and down to be planked.
Seedlings transportation precautions: (1) to choose a good quality, containing mud, the seedlings taken that day. (2) The transportation time should be selected in the north wind day, the temperature is low, and the survival rate is high. Nanfeng days are easy to die. Wooden sailboats are not suitable for transport, but they are not suitable for transport during the windy season. (3) If the middle seedlings and white seedlings are transported at the same time, the white seedlings should be at the bottom and the middle seedlings should be at the top. (4) Whether the vehicle or vessel is equipped with a canopy to avoid the death caused by the sun or rain, it must not be covered in order to prevent suffocation. (5) Before the transportation, the tide of the stocking site must be accurately calculated to determine the departure time. Such as stocking in the tidal areas, the seedlings should be transported during the tidal wave, otherwise the seedlings will be transported to the ground, and the ground will not be able to be dried and cannot be planted, resulting in losses.