First, the current route of transmission of highly pathogenic avian influenza and its harm
The spread of highly pathogenic avian influenza among birds mainly depends on horizontal transmission, such as air, feces, feed and drinking water. Experiments show that the eggs of infected chickens contain influenza virus, so there is also the possibility of vertical transmission.
Since the end of 2003, highly pathogenic avian influenza has broken out in many countries and regions in Asia. The epidemic has not been brought under control. The spread of avian influenza in Asian countries and regions has threatened human life, caused serious economic losses and brought many warnings and lessons to people.
Few people expected that bird flu, commonly known as "chicken plague", would bring such great harm to human beings. The bird flu in Asia is like a mirror, reflecting the inadaptability of traditional production and lifestyle in the face of new infectious diseases. The prevention and control of bird flu needs to pay more attention to the warning brought by the epidemic.
Healthy and safe livestock and poultry breeding is the basis of epidemic prevention and control.
Standardizing sanitary trade and transportation channels is the guarantee to control the epidemic situation.
Second, the problems of traditional prevention methods.
1. If there is no epidemic, there is no need for disinfection.
The main purpose of disinfection is to eliminate pathogens from the source of infection. There are three basic links in the occurrence of epidemic diseases: the source of infection, the route of transmission and susceptible animals. In livestock and poultry breeding, although there are sometimes no epidemics, if the environment is not disinfected and purified in time, pathogens in the environment will accumulate more and more, which will lead to epidemics to a certain extent. Therefore, disinfection should pay attention to three links: disinfection in the enclosure (with livestock and poultry) and disinfection in the environment outside the enclosure (including appliances and vehicles, etc.). ), disinfection of eggs and drinking water, at least three times a week, disinfection environment every week 1 time, drinking water should be disinfected frequently or ensure cleanliness.
2, has been sterilized, there will be no infectious diseases.
Disinfection with chemical disinfectants may not achieve a thorough disinfection effect. Most chemical disinfectants have disinfection blind spots, and many pathogens can spread through air, water, birds, mice and other media. Without strict disinfection measures, it is difficult to completely cut off the transmission route.
3, long-term use of chemical disinfectants
Generally speaking, bacteria and viruses are resistant to chemical drugs and may also be resistant to chemical disinfectants. In particular, E.coli O 157, which broke out in Japan in 1996, caused extensive food poisoning. Previously, most food companies in Japan used chemical disinfectants such as sodium hypochlorite, acetic acid and ethanol. Due to the long-term use of ultra-high concentration chemical disinfectants for sterilization, Gram-negative bacteria such as Escherichia coli have developed drug resistance. It is very effective to disinfect food processing plants and poultry breeding enterprises with ozone with completely different sterilization mechanisms. Therefore, the number of manufacturers producing ozone disinfection devices in Japan has obviously increased, and their products are also very popular, which is closely related to the occurrence of food poisoning caused by Escherichia coli O 157.
In addition, if chemicals and disinfectants are used for a long time, too many toxins and chemical residues will accumulate in cultured eggs, which will not only affect the edible quality of eggs, but also directly endanger human health, which is a major event related to food safety.
4. Do not need sterilization, vaccination prevention.
Although vaccination is a means to prevent influenza and other infectious diseases, it may take at least six months for people to manufacture and mass-produce effective vaccines if a new worldwide influenza appears. It is a long-standing and reliable technology to make vaccines from chicken embryos, but some types of influenza viruses are very fierce, which may completely kill the chicken embryos used to cultivate them, thus making it impossible to produce vaccines. Even if this does not happen, it is still a big problem to collect thousands of eggs as raw materials. Moreover, the protein structures of hemagglutinin (H) and neuraminidase (N) on the surface of influenza virus are changeable, which makes the preventive effect of existing vaccines not 100% reliable. Therefore, in addition to vaccination control, disinfection and prevention should be strictly carried out.
With the continuous development of ozone generator technology and the recognition of enterprises and families, its application scope in all walks of life has gradually deepened. In recent twenty years, the effect of ozone applied to poultry breeding has been generally recognized abroad, which can guarantee and stimulate the demand of domestic aquaculture enterprises. The application of ozone in poultry farming (chicken, duck, pig and various fresh water and seawater farming) is usually based on its sterilization and disinfection ability.
Application characteristics of ozone in aquaculture;
1, strong bactericidal ability, its bactericidal ability is 1.5-5 times that of ultraviolet lamp and 1 times that of chlorine, and its bactericidal speed in water is 600-3000 times faster than that of chlorine.
2, antivirus has no dead angle, no residue, environmental protection, high efficiency and no secondary pollution.
3. Reduce investment cost: Using ozone technology can greatly reduce manpower input and the use of chemical drugs and antibiotics. With a small amount of electricity and free air as raw materials, the degree of automatic breeding is improved and the diseases of chickens are reduced.
4. Improve egg production: Excessive use of chemical drugs will damage the calcium absorption capacity of chickens, and it is easy to produce soft-shell eggs, which will lead to a decline in egg production.
5. Improvement of product quality and sales: As far as the quality of food hygiene products is concerned, chicken containing too many chemicals and antibiotics is likely to cause potential harm to people's health and affect market sales.
6. Disinfecting air and water with ozone is an effective method to effectively prevent and treat influenza virus.
The application of ozone technology in poultry farms can be divided into three aspects:
1. Using ozone to continuously sterilize, disinfect and purify the air in the breeding shed is the main aspect: when ozone is filled into the breeding shed, it is first decomposed with the odor emitted by poultry manure to remove the odor. When the odor is removed to a certain extent, the viruses such as Escherichia coli, Staphylococcus, plague in Xincheng, chicken cholera and avian influenza in the shed are basically killed. In addition, the toxicity of amine gases emitted by poultry excreta to poultry can not be ignored, and the harm of toxic gases such as sulfur oxide produced by rural farmers in direct heating in breeding sheds in winter to poultry can not be eliminated by chemical drugs. However, after the application of ozone technology, it can effectively achieve the purification effect, and when it enters the breeding shed of ozone technology, it intuitively makes people feel that the air is obviously fresh.
2. On the other hand, let birds drink ozone water regularly: brew ozone water with ozone for birds to drink. It is also an important part. Drinking ozone water can change the microecological environment of poultry intestines. Ozone reduces the number of bacteria living on host nutrition in poultry intestines and reduces the consumption of host nutrition. It can also enhance the activity of exuberant amylase. Improve the utilization rate of food nutrients by poultry, especially young birds, increase the nutritional supply of young birds, and promote the healthy growth of poultry. Letting birds drink ozone water can change the drug resistance of birds, which can effectively prevent intestinal diseases such as pullorum. It should be pointed out that the half-life of ozone in water is about 20 minutes, and it is best to drink while doing it. But ozone breaks down chemicals. Drug supply and ozone water supply should be separated and more advanced.
3. Cleaning poultry houses, feeding troughs and sports grounds with ozone water can effectively kill viruses and harmful bacteria on the surface.
Benefits of ozone generator to modern poultry breeding;
1, strong broad-spectrum bactericidal ability. Ozone can kill a variety of pathogenic microorganisms, such as Escherichia coli, Salmonella, Staphylococcus aureus, hepatitis A and B viruses, fungi, etc., and can quickly and thoroughly kill various pathogenic microorganisms in air, feed and drinking water. The sterilization ability of ozone is 1.5~5 times that of ultraviolet lamp and twice that of chlorine, and the sterilization speed in water is 600-3000 times faster than that of chlorine.
2, disinfection without dead ends. Ozone, as a gas, has good diffusivity, easy embedding in dead corners and uniform concentration distribution. Satisfactory disinfection effect can be achieved on irregular surfaces and hidden dead corners, especially for multi-layer culture. Ultraviolet disinfection only disinfects the surface that can be irradiated, and it is easy to leave a dead angle; Disinfection of farms with formaldehyde fumigation, organic chlorine, potassium permanganate and other chemicals will cause secondary pollution, which is unfavorable to the growth of poultry.
3. Improve the air environment. The ozone generated by the ozone generator is injected into the henhouse, which first reacts with the smell emitted by poultry excrement. Attention should be paid to the harm of ammonia, hydrogen sulfide and other gases emitted by poultry excreta to poultry, which cannot be eliminated by chemical drugs, but ozone can effectively achieve the purpose of purification. At the same time, ozone decomposition can increase the oxygen content in the air.
4. Reduce the investment cost. The use of ozone technology can greatly reduce manpower input and the use of chemicals and antibiotics, improve the automation of aquaculture and reduce the occurrence of poultry diseases.
5. Green and environmental protection. Ozone comes from the transformation of air or oxygen under high pressure, and does not need any other auxiliary materials and additives. The stability of ozone at room temperature is very poor, so after ozone disinfection is completed, ozone will be automatically converted into oxygen, without any residue and secondary pollution, and will not have any adverse effects on poultry health.
6. Improve the survival rate. Ozone can effectively prevent and treat major livestock and poultry diseases such as blue ear disease and Newcastle disease, reduce the morbidity and mortality of livestock and poultry, improve the survival rate and promote the healthy and rapid growth and development of livestock and poultry. Ozone can also increase the blood oxygen content of poultry, activate immune cells, improve the disease resistance of poultry by more than 3 times, and prevent poultry from getting sick, thus effectively controlling the occurrence of major diseases.
7. Increase egg production. Excessive use of chemical drugs to prevent poultry diseases will damage the ability of calcium absorber and reduce the egg production of laying hens. Using ozone disinfection can reduce the injection of chemical drugs, birds grow well and the number of eggs naturally increases.
8. Improve feed conversion rate. Using ozone generator to treat ozone water for poultry to drink can change the microecological environment of poultry intestines, reduce the number of bacteria parasitic on the host intestines, reduce the nutrient consumption of the host, enhance the starch secretion activity of beneficial bacteria, and improve the utilization rate of feed nutrition for poultry, especially young birds.
9. Increase the cage quantity. Mastering the application technology of ozone and using it strictly in the right way can effectively curb the occurrence of poultry diseases and promote healthy growth. Chickens are healthy, grow normally, and their weight increases by about 20% year-on-year, which can also make poultry go out a week ahead of schedule.
10, eggs are disinfected and kept fresh. Eggs are often polluted by feces and bedding after they are produced, and the surface of eggshells carries a lot of bacteria and viruses, which may invade the egg body, destroy the quality of eggs, or be infected by human contact. Install ozone sterilization, disinfection, mildew prevention and preservation systems in the egg warehouse to keep a certain ozone concentration in the warehouse for a long time (stop the machine when it is concentrated in the warehouse). It can significantly reduce the number of microorganisms on the eggshell surface, which not only meets the customer's requirements for egg hygiene, but also prolongs the storage time of eggs.
To sum up, the application of ozone technology in poultry breeding is of great significance, and more and more people accept this new technology. Beijing, Shan Mei and Shui Mei have been engaged in ozone related applications for 20 years and accumulated rich experience.
Breeding expert Gong Li Tel: 159 10890955