The fly has a miniature "bacterial bomb" called its ability to carry germs is amazing, just a fly and a foot, can carry 80-1.5 million bacteria. Flies can also carry bacteria and viruses, and carry more than in vitro. A fly, including the mouthparts, can carry 30 to 500 million bacteria in the entire intestine. These bacteria can live in the "belly" of the flies for a week or more. According to the health department, a fly The body can carry more than 60 pathogens that harm human and animal diseases such as paratyphoid, bacterial dysentery, amoebic dysentery, Escherichia coli, infectious gastroenteritis, and pseudorabies. Therefore, flies are the chief culprit in spreading various diseases. The flies have to go through four stages of eggs, larvae, cockroaches, and adults, but they breed very fast. In summer, the temperature will become 蛆 in less than one day, and it will turn into cockroaches in 5-6 days. In the day, you will fly the flies that will fly. When the temperature exceeds 30 °C, its life cycle can be reduced from 13 days to 8 days. The adult flies can soon lay off their eggs, and a female fly can lay 1,000 eggs. Under the conditions of abundant food and safe conditions, the number of their offspring reaches 1.9 billion in five months.
There are many ways to eliminate flies. At present, the commonly used method is to spray drugs regularly. This method not only costs money, increases expenses, but also pollutes the environment, kills the natural enemies of flies at the same time, and takes a long time. The flies will develop resistance and quickly multiply. Revived. To eliminate flies, according to the life history of flies, think more ways from the gathering place to improve the environment and make the flies unsuitable. To this end, the following opinions are put forward for the scale of pig farms to be used for reference:
A: Control the humidity inside the house: After the eggs are laid, the larvae can be hatched into larvae with a humidity of more than 35%. The best hatching humidity is 70%. Keeping the sheds dry and dry is the best way to control the reproduction of flies. The water in the house comes from the drinker, flushing the barn and the excrement of the livestock. In order to control the humidity inside the house, be careful when clearing the water drinker to avoid spilling the ground. The drinker is broken and leaking, it should be replaced immediately, and the leaked water should be dried. The water outlet of the drinking water tank is applied with a hose cover, and the outflowing water is introduced into the water drain and out of the house. When using the drinking water tank, the water level of the water tank should not be too high. Keep a long running water level of 0.5 cm deep, so that the water level is high and it is easy to overflow, or because the temperature is high, the pig is fun with water, and the water is spilled out, or too loose. Excessive drinking water causes excessive feces and excessive urine, which improves the humidity in the house. When flushing in the house, clear the water, open the doors and windows, and increase the ventilation, so that the floor inside the house can be quickly dried. In the hot and cold wind, it is necessary to install an electric fan in the house. Generally, the air is continuously blown from the south to the north to increase the air flow rate, and the harmful heat is emitted from the heat, water vapor and excrement emitted by the pig body. It can reduce the stress response of pigs on hot days.
Second, the fly maggots are strictly prohibited from running out of the pit. After the larvae age, they must climb out of the pit and drill into the dry wall or outside the loose soil to form a dark red cofferdam. The cocoon will become a winged fly in a few days. For example, if the ground hole and the foot of the house are repaired, the surrounding concrete is built with solid cement. It is better to sprinkle lime or insecticide powder so that the aging can not run out and destroy it naturally during the smashing stage.
Third, in the feed, add the "Deli Sushenfly Net" Chinese herbal medicine additive (use once every three months and four months, each time for seven days), to achieve the eradication and killing of pigs in and out of each stage, pig skin Clean and bright, improve the growth rate; the feces excreted by pigs also play a potent effect to kill fly maggots and cockroaches in the ditch, thus achieving good results in controlling flies. This method has been widely used in large-scale farms in southern provinces.
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