First, build breeding facilities. 1 Construction of escape wall: Built around the orchard dwarf wall, the wall base is about 20 centimeters deep underground, can prevent turtles from escaping from the ground, the low wall is 60 centimeters high above the ground, and the corners are made round, which can effectively prevent turtles from fleeing. 2 Build a house: In the middle of the park or in the four corners, how many turtle houses should be designed and constructed according to the amount of turtles. When the orchards spray poisonous pesticides to treat pests, all the turtles can be moved into the room to avoid poisoning. After 1-3 days put the turtle out again. The use of high-efficiency, low-toxic, low-residue pesticides can also prevent turtle poisoning. In winter, the turtle can be moved into the indoor winter, covered with dry weeds, regular shower with a little water moisturizing. Colder areas in the north should be covered with plastic film, or they can be moved into the basement for winter. In addition, a few more arbors will be built to help the turtles inhabit the summer in summer.
Second, the choice of turtle species. In China's current conventional orchards, turtles can be nested, but it is best to choose drought-tolerant varieties such as gold turtles, sawn camera turtles, turtles, ground turtles, and yellow box turtles in the tortoise. Drought-tolerant ability, no water can grow normally for months. If you choose to use semi-dry turtles, colorful turtles, etc. can also be, but in advance in the garden to dig a few ditch or small pool for their bath and life. Stocking density, should not be dense enough, generally 667 square meters orchard put middle turtle or two age turtle 200-300, for commercial production is appropriate.
Third, feed delivery. Hanging a few lights in the orchard at night to lure the insects to flutter the lights can lead the harmful insects spawning in the orchard to the lights and let the turtles prey on their own. It not only reduces the harm of most orchard pests, minimizes pests, but also reduces the number of pesticides applied in orchards. This not only saves the cost of pesticides, but also reduces the turtle's artificial feed input by 30 to 50%, because insects are among the finest. High-protein feed, thus saving feed costs, kill two birds with one stone.
In case of rainy days or early spring and early winter season, the amount of insect traps is small, and artificial diets accounting for 3% to 4% of the body weight of the turtles can be fed every day. If it is sunny weather and summer, the amount of insects is large, which can reduce the amount of artificial feed, and generally can account for about 1% -3% of the turtle's weight. It also depends on the amount of insects that were spurred on that day.
Fourth, prevention and treatment of diseases. Because turtles have a large range of activities under the fruit forest, they are rarely affected, but they should still be prevented. The turtles can be sterilized once a month, and 2000 times bleach solution can be used for showers. Gastrointestinal inflammation occurs in summer and autumn and can be treated with norfloxacin. Tortoises should be protected against voles, weasels, snakes and eagles.
Roundness Measuring Instruments
Roundness meter is a length measuring tool for measuring roundness using the rotary axis method. The roundness meter is a measuring tool for measuring the roundness error of the workpiece using the rotary axis method. Roundness tester is divided into two types: sensor rotary type and workbench rotary type. During measurement, the measured part is installed concentrically with the precision shaft system, and the precision shaft is attached with an inductive length sensor or a workbench for precise circular motion. It is composed of sensor, amplifier, filter and output device of the instrument. If the instrument is equipped with a computer, the computer is also included in the system.
The principle of the roundness meter is the same as that of the coordinate measuring machine. In fact, its working principle is very simple. The coordinate measuring machine is a point acquisition tool. Its principle is to collect points first, and then form a line from points, and then form a three-dimensional model from lines. CMM is a kind of measuring equipment that has a guiding mechanism, a length measuring element, a digital display device in three mutually perpendicular directions, and a worktable that can place the workpiece (not necessarily large or huge). The measuring head can be moved to the measured point easily by manual or motorized means, and the coordinate value of the measured point is displayed by the reading device and the digital display device. Obviously, this is the simplest and most primitive measuring machine. With this measuring machine, the coordinate value of any point in the measured volume can be displayed through the reading device and digital display device.
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