In the summer, livestock and poultry farms are often invaded by pests such as mosquitoes and flies, harassing people and animals, infecting diseases, causing serious adverse effects on people and animals, causing people to complain, for which we can take the following measures to prevent precautions. . 1, physical methods The physical method used in livestock and poultry farms is to remove feces in a timely manner. Special attention should be paid to feces and sewage in dead corners, and the feces of livestock and poultry should be kept as dry as possible. First of all, we should do a good job of cleaning and sanitation in livestock and poultry farms, and disinfect them regularly. Secondly, the removed manure should be properly disposed of, and the fermentation process should be taken away or piled up in time. Waste litter and dead animals in livestock and poultry farms should also be disposed of properly. The poultry farm should regularly check the drinking water and feeding system to ensure that there is no water leakage or sprinkling. Try to avoid broken eggs when you are quailing. Properly adjust the ventilation system of the house to ensure proper wind speed and prevent excessive ammonia. 2, biological methods The biological method of controlling flies is to cultivate natural enemies of flies in the feces. Natural enemies of flies include beetles, crickets and wasps. In natural conditions, there are fewer natural enemies in the feces. Dry livestock manure is conducive to the development of natural enemies of flies. We can regularly place natural enemies of flies on the feces of livestock houses. 3. Chemical methods Chemical drugs are the most effective way to control flies. Chemical drugs can not only kill flies, but also fly eggs and larvae. Chemical drugs are divided into larvae and adulticides. The larvicidal agents are (1) organophosphorus (2) carbamates (3) insect growth regulators. In addition, there are also pesticides for controlling flies through feed routes at home and abroad, such as cyromazine premix, which is added to feed for 4 to 6 weeks to control the reproduction of fly larvae in livestock and poultry houses. . Adulticides: (1) organochlorines (2) organophosphorus (3) carbamates There are several methods for the application of adulticides: (1) the application of the flies to stop the application (2) the spraying of the space (3) the poisonous fly rope (4) the poison bait.
A CT scan makes use of computer-processed combinations of many X-ray images taken from different angles to produce cross-sectional (tomographic) images (virtual "slices") of specific areas of a scanned object, allowing the user to see inside the object without cutting.
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