First of all, we must breed excellent varieties of meat ducks, these meat ducks grow fast, strong disease resistance, high utilization of feed. The suitable growth temperature of the meat duck is 12 to 24°C, and ducks can use the feed effectively and efficiently in this temperature range. The proportion of protein and energy in the meat duck's feed should be balanced, and the meat ducks should be slaughtered in 40 to 48 days. This is because the meat ducks gain weight and feed rewards have peaked. After 50 days of age, the weight gain of meat ducks has decreased. reduce. In the breeding process, nutritive additives such as minerals, vitamins, and amino acids are necessary. Other non-nutritive additives are also helpful in improving the growth rate and feed utilization of meat ducks. WiFi Solar Camera,Solar Ip Camera,Smart Surveillance Cctv 4G,Solar CCTV Camera System,Night Vision Infrared Solar Camera Shenzhen Fuvision Electronics Co., Ltd. , https://www.outdoorsolarcamera.com
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What problems should we pay attention to when using solar energy for power supply?
1. The whole day sunshine time of monitoring points along the expressway shall be considered first. As the main energy of the power supply system comes from sunlight, the sunshine exposure time must be considered, which is particularly prominent in mountainous areas where there is little sunshine, but not in plain areas.
2. Working power, working voltage and current of monitoring facilities along the expressway. After considering the power of the whole load, we can choose the solar panel that is more suitable for the long-term operation of the equipment.
3. If the battery discharge cannot make the monitoring equipment work for a long time, the monitoring system will be paralyzed in the rainy season, but the expressway is prone to accidents in the rainy season.
4. The conversion rate of solar cells is low. At present, the conversion rate of solar cell power supply is only about 20%, that is to say, if the silicon solar cell is spread over a square meter, 100~200W of power can be obtained, which is obviously not enough to meet the long-term operation of the monitoring equipment. Of course, with the development of technology and the improvement of the quality of crystalline silicon cells, we can obtain more power resources in a smaller area in the near future.