First, the normal temperature culture method. This approach relies on natural ambient temperatures to raise earthworms. As the seasons change, the worms go through cycles of recovery, growth, reproduction, and hibernation. The advantage of this method is its simplicity—no need for greenhouses or heating systems, making it cost-effective and easy to manage. When temperatures drop below 10°C, the earthworms enter hibernation. To protect them from cold winds, straw curtains should be used inside the farm. In winter, it's important to ventilate the area once every two weeks and mist the surrounding areas to keep the environment moist, ensuring a comfortable wintering condition for the worms. Ventilation and watering should be done during midday, and each session should last about two hours.
As spring approaches, the earthworms gradually become active again. When the temperature reaches 20°C, most of them start feeding. However, their activity and digestion are still weak at this stage, so feed should be given in small amounts. As the temperature continues to rise, the feeding amount should be increased gradually to avoid overfeeding, which can lead to bloating and death. Care must also be taken to prevent sudden cold spells. Once the temperature reaches around 25°C, the earthworms’ appetite increases, and they begin to grow more rapidly. At this point, sufficient food and daily moisture should be provided to support their development. During this period, egg-laying and hatching also occur, so both feed and water need to be increased accordingly.
In autumn, the young earthworms that were raised during the year have grown to about 5-7 cm in length. Due to their fast growth, they may not have stored enough fat. To ensure they survive the winter, it’s essential to provide protein-rich and high-fat foods such as meat, eggs, and tofu to help them build up energy reserves.
Second, the warming culture method. This technique, also known as non-hibernation culture, involves manually controlling the temperature to prevent earthworms from entering hibernation, allowing them to grow and develop throughout the year. A key requirement is a greenhouse with proper insulation, temperature control, and ventilation. These structures can be newly built or converted from existing buildings or plastic sheds. Regardless of the type, the greenhouse must meet four basic criteria: it should be economical, well-insulated, ventilated, and structurally sound for easy management. The daily care of earthworms under this method is similar to the normal temperature method, but with three additional focuses: maintaining a stable temperature between 20°C and 36°C, ensuring adequate moisture due to faster evaporation in warm conditions, and promptly removing leftover feed to prevent spoilage.
Third, the cross-farming method. This strategy combines the warming and normal temperature culture methods to maximize production within limited space. During spring, when outdoor temperatures exceed 20°C, small earthworms (around 5 cm long) from the warm room can be moved to the normal temperature pools, freeing up space in the warm area. After four months of growth, they can reach over 12 cm and be sold. If there's a shortage of warm housing, some earthworms can be moved back to the normal temperature pools for further breeding. This cycle helps expand production and increase economic returns. This method is especially suitable for small-scale family farms.
What is DVR Mini Camera
Dvr, which is called DigitalVideoRecorder in full, is a digital video recorder. Compared with traditional analog video recorders, dvr uses hard disk for recording, so it is often called hard disk recorder, also called DVR. It is a set of computer system for image computing, storage and processing. It has the functions of long-time video recording, recording, remote monitoring and control of images/voice and dynamic frames. DVR integrates five functions, including video recorder, picture splitter, PTZ lens control, alarm control, and network transmission. One device can replace a large number of devices in the analog monitoring system, Moreover, it has gradually gained advantages and popularity in terms of price.
The "digitalization" of DVR means that compression and storage technology is aimed at digital signals, rather than directly transmitting digitally encoded video images. Therefore, DVR must be deployed near the analog camera.
The function of DVR, with the increase of various voltage sensitive loads in the distribution network, puts forward higher requirements for power quality. However, due to system accidents in the power system, the voltage flicker, drop and other disturbances caused by the startup and shutdown of large equipment, lightning stroke and other principles are unavoidable. Moreover, in the current power grid, the ability to quickly restore power supply after power interruption is far from meeting the requirements of many sensitive loads. Therefore, it is necessary to provide users with stable and uninterrupted high-quality power when interference occurs. Dynamic voltage recovery (DVR) is the choice to solve the above problems today. DVR is connected in series to the feeder line that requires high-quality power to realize dynamic real-time voltage compensation for the line, so that the load end can get the desired high-quality power, and ensure the normal and uninterrupted operation of sensitive user equipment.
DVR Mini Camera,Cctv Camera System, Outdoor Waterproof NVR Set , Wireless Security Camera NVR, Cctv NVR Kit
DVR Mini Camera,Cctv Camera System, Outdoor Waterproof NVR Set , Wireless Security Camera NVR, Cctv NVR Kit
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