In an interview recently, director of the Feed Office of the Animal Husbandry Bureau of Qingdao City, Shandong Province, said that since the outbreak of Sanlu's milk powder, the feed department has done a test on all the feeds produced by all the feed production enterprises in Qingdao, including fish feed, but No melamine problem was found. Su Zhuren said that Qingdao has a total of 24 protein source manufacturers. These companies have repeatedly requested them to check whether feed contains melamine. The results are very satisfactory. The aquaculture company recently took the initiative to call the feed department and asked the staff to go and verify the compliance.
"Wet curtain - fan" of the vertical ventilation cooling combination is the most economical and effective measures to cool the greenhouse in summer.
Years from the application of a real show, even in the heat of the day reported, the rational design and installation of a fan of wet curtain cooling system can still control the greenhouse temperature at 30 °C, in order to heat the greenhouse to reduce the adverse effects minimum. In the summer, your production needs Jienuo wet curtain to help.
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