Article 1
Analysis of swine flu prevention and control technology
Abstract: Swine flu is an acute infectious disease of pigs caused by swine flu virus. The main feature of swine flu is its sudden onset and rapid spread among pigs. Pigs infected with the virus will soon have symptoms of fever and upper respiratory tract inflammation. In recent years, the epidemic situation of influenza A has become a typical case of swine flu and an international public health event that has attracted worldwide attention. Swine flu has brought huge adverse effects on pig breeding and pig products market. Therefore, in order to ensure the healthy and sustainable development of pig industry, it is necessary to study the prevention and treatment technology of swine flu. This paper will briefly talk about the prevention and treatment technology of swine flu based on the incidence of swine flu.
[Keywords:] characteristics of swine flu prevention and control
1 the main situation of swine flu
In order to do a good job in the prevention and treatment of swine flu, we need to have a deep understanding of this acute infectious disease. Only by understanding the characteristics, symptoms and pathology of swine flu can we take scientific prevention and treatment measures against swine flu.
The epidemic characteristics of 1. 1
As an acute infectious disease, swine flu is characterized by a wide epidemic range. Pigs of any breed, sex and age can be infected. Moreover, swine flu may break out in any season, but it is more likely to be infected in late autumn and early spring. Sick pigs and convalescent pigs are the main sources of swine flu infection, and there are many ways of transmission. It is the main way of respiratory infection through droplets. In addition, it can also spread through water and feed contaminated by the virus, and the transmission speed is extremely fast. Although swine flu generally does not lead to the death of pigs, widespread infection will still cause huge losses to pig farmers.
1.2 Clinical symptoms
One of the most typical clinical symptoms of swine flu is its acute attack and rapid spread. Usually, only when swine flu is found in pigs will a large-scale infection break out within 1 to 2 days. After pigs are infected with swine flu, there will be symptoms such as listlessness, loss of appetite and rising body temperature. In severe cases, shortness of breath, foaming at the mouth, and even inability to stand up because of muscle and joint pain. However, the course of swine flu is relatively short and there are no other complications. Usually, pigs can recover within 7 days after onset, but if complications occur, it is likely to lead to death. The resistance of sows during pregnancy is generally weak. If infected with swine flu, it is easy to cause abortion due to placental infection, which will directly lead to the death of sows. Even if the sow does not miscarry or die, even if the piglet is not a mummy fetus, it will show dysplasia in the development process of the day after tomorrow.
Pathological changes of 1.3
The reason why pigs infected with swine flu show the above symptoms is because their bodies are diseased due to swine flu. After swine flu infection, the respiratory tract of pigs will be congested and swollen, and sticky liquid will be attached. Too much cellulose-like serosity will also accumulate in the chest cavity. The back and base of the heart, lung, etc. Purple will also appear and become solid and collapse. In sharp contrast, the surrounding lung tissue is pale and swollen, and the boundary between organs and surrounding tissues is becoming clearer and clearer. Moreover, catarrhal inflammation will occur in the gastrointestinal tract of infected pigs.
2. Prevention and treatment technology of swine flu
2. 1 preventive measures
2. 1. 1 Improve the disease resistance of pigs.
In order to reduce the probability of swine flu infection in pigs, the most basic preventive measure is to improve the resistance of pigs. The pig's resistance has improved, so it is naturally not easy to be infected by virus. To improve the resistance of pigs, it is mainly necessary to raise pigs carefully and scientifically. Firstly, it is necessary to ensure that pig feed is clean and pollution-free, and secondly, it is necessary to pay attention to reasonable collocation, so as to ensure that pigs can get enough energy and necessary nutrition from feed, especially the supply of protein, vitamins and other substances in pig feed, which plays an important role in strengthening pigs' physique and improving their resistance.
2. 1.2 Do a good job in heat preservation of wooden cribs
As a warm-blooded animal, the healthy growth of pigs needs a suitable temperature environment. Therefore, in order not to break the balance of internal and external body temperature and improve the resistance of pigs to influenza virus, it is necessary to do a good job of heat preservation in pig houses. Cold, humid or changeable pigsty environment will affect the growth of pigs, reduce their resistance and increase the possibility of swine flu.
2. 1.3 Insist on proper exercise
Proper exercise is also conducive to improving the resistance of pigs and promoting their healthy growth. Insist that pigs exercise properly every day, but at the same time pay attention to the degree of exercise, and remember not to overdo it, for example, you can't let pig farmers run fast, and you can't let pigs sweat because of exercise.
2. 1.4 Disinfection with pig spray
In order to reduce the threat of influenza virus to pigs as much as possible, it is very necessary to spray disinfection of pig houses in a planned and regular manner, especially in the season of high epidemic from late autumn to early spring. In addition to routine disinfection once a week, emergency disinfection should be carried out two or three times a day as needed. The spray used for disinfection is usually 0.3% acetic acid solution.
2. 1.5 isolate sick pigs in time
As mentioned above, swine flu has the characteristics of rapid spread, so once pigs are found to be infected or suspected of being infected with swine flu virus, they should be isolated in time. In addition, in the case that pigs of other pig farmers are infected with swine flu, pig farmers should protect and seal their pigs in time, minimize contact between unrelated people and avoid further spread of the disease.
2.2 treatment methods
2.2. 1 desensitization therapy
Desensitization therapy is mainly used to treat mild pig disease. If pigs have symptoms such as sneezing, runny nose or slight cough, desensitization treatment can basically control the epidemic. The method of desensitization treatment is to supplement vitamin C to pigs to maintain the concentration of vitamin C in white blood cells of pigs. The amount of supplement is 10 to 20mg once or twice a day.
2.2.2 antiviral therapy
When the pig's condition is serious, it is difficult to control the disease only by desensitization treatment. At this time, it is necessary to carry out antiviral treatment for pigs. Morphine hydrochloride can be added to pig feed, and Gramoxone can also be added to pig feed or drinking water. If moroxydine hydrochloride is added to pig feed, the ratio should be 0. 1% to 0. 15%, and it needs to be fed three times a day for three days. If the method of mixing poisonous king kong with drinking water is adopted, the ratio should be 100g poisonous king kong with 250kg water, so that pigs can drink freely for 3 ~ 5 days continuously. You can also mix the ingredients according to the ratio of ketamine 100g, water 400kg and feed 200kg, and feed the pigs with the ingredients continuously for 3-5 days. If pigs have high fever, they can also be injected with 3% analgin. The injection amount depends on the weight of the pig, generally 30 mg per kilogram, twice a day for two consecutive days.
2.2.3 Chinese medicine treatment
Chinese medicine treatment also has a good effect on the treatment of swine flu. 25 grams of almond, 25 grams of ephedra and 25 grams of licorice, 50 grams of gypsum, 50 grams of mulberry bark and 50 grams of Anemarrhena asphodeloides were mixed and crushed, and then added into feed to feed pigs, 60 grams a day for 3 days. At the same time, Radix Puerariae, Folium Isatidis, Semen Phaseoli Radiati and Rhizoma Osmundae each 150g were decocted in water for pig reference.
In a word, swine flu, as an acute infectious disease of pigs, is a big risk in the process of pig breeding. If the prevention and control of swine flu is not done well, it is very likely to cause serious losses to pig farmers. Therefore, it is of great significance for pig breeding to study the cases and characteristics of swine flu and summarize the effective prevention and treatment techniques of swine flu.
refer to
[1] Chun Liu, Zhu Ping. Prevention and treatment technology of swine flu [J]. Animal Husbandry and Veterinary Science and Technology Information, 2012,02: 81-82.
[2] Shangguan Xinle. Prevention and treatment technology of swine flu and pig cold [J]. Rural aquaculture technology, 2012,21:27.
[3] Zhang Shiquan. Prevention and control technology of swine flu [J]. Pig industry in China, 2009, 07: 5 1.
the second
Discussion on prevention and control measures of pig diseases
[Abstract] In recent years, with the continuous development of economy and society, aquaculture has also developed rapidly in a new direction of scale, scale and science, especially pig industry. The development of large farms has increasingly become the main source of market supply. However, the development of large-scale pig farms has been inhibited to some extent due to factors such as inadequate prevention and control of pig epidemics. Some diseases that may be encountered in pig breeding were classified and summarized. The problems faced by pig breeding were summarized and analyzed, and a series of defensive measures were put forward to provide some feasible suggestions and references for farmers.
[Keywords:] Pig disease prevention and control classification summary defense measures
First, the significance and purpose of pig disease prevention and control.
With the continuous development of China's pig industry, large-scale farms have been formed, the breeding density of large-scale pig farms is increasing, and the disease problems of pigs are becoming more and more prominent. Pigs suffer from various diseases, which has become a bottleneck restricting the development of large-scale pig industry. In recent years, the incidence and prevalence of infectious respiratory diseases in pigs raised by individual farmers are getting higher and higher. For individual farmers, the occurrence of these diseases seriously threatens the development of pig industry. As well as the spread of diseases, thus having a significant impact on the interests of farmers.
To do a good job in the prevention and control of pig diseases, we should not only understand common diseases, but also go deep into farms, regardless of the characteristics of their incidence. Moreover, it is necessary to fully explain various diseases such as leg and hoof disease, digestive system disease, respiratory system disease, streptococcal disease and panel disease of breeding pigs, and do a good job in prevention and control in time to avoid the spread and spread of diseases to the maximum extent and avoid the losses of farmers.
Second, common pig diseases and their prevention and control work
1. Streptococcosis suis
Porcine coccidiosis mainly includes three types, namely acute septic meningoencephalitis, arthritis and lymph node abscess. Among them, the main symptom of acute septicemia meningoencephalitis is that pigs suddenly fall to the ground with elevated body temperature, and may also be accompanied by swimming or foaming at the mouth of pigs.
Different kinds of drugs can be selected for the prevention and treatment of swine streptococcosis, among which doxycycline, 10mL antongding,1.6-48,000 penicillin and so on can be selected. If the symptoms of lymph node abscess in pigs are redness or pustules, the easiest way is to cut it first, then drain the pus out and clean it with drugs.
2. Digestive system diseases in pigs
The digestive system diseases of pigs mainly include viral diarrhea, bacterial diarrhea and hemorrhagic enteritis. Among them, the symptoms of viral diarrhea are: pig manure leaks like water, and when it is serious, it will be sprayed directly. When observing whether pigs have digestive system diseases, we can observe the color of feces. If the color is yellow-green or turquoise, accompanied by anorexia in suspected sick pigs, the appearance is obviously thin. By observing the morphology and feces of pigs, we can see the digestive system diseases of pigs. If it is bacterial diarrhea, the feces will be sparse.
So, how to do a good job in the treatment of pig digestive system diseases? First, we should keep the pigsty clean and tidy, fully ensure sunshine and do a good job of disinfection. At the same time, try not to feed the pigs with moldy feed or other things. Secondly, we should also keep drinking water clean in defensive measures. We can give it as a whole and try to add antibiotics and rice bran to the feed. Third: when pigs have digestive system diseases, they should be treated with drugs in time. Oxytetracycline, lincomycin, and Chlorphenazine 5- 15mL need to be injected separately.
3. Limb-hoof disease and pig-face disease of pigs.
At present, the main feature of pig limb and hoof disease is that all joints of pigs are swollen, which will lead to the rupture of pig feet in severe cases and make sick pigs unable to stand in severe cases. The following measures can be taken to prevent and control pig limb and hoof diseases: 1. Ensure that the pigsty environment is clean and the air is dry and ventilated. 2. The density of pigs should not be too large to prevent fights between pigs. 3. The pigsty should be disinfected regularly to ensure that there are no sharp objects in the pigsty. Once the sick pig suffers from upper limb hoof disease, it should be treated with drugs immediately, including 10mL antongding, penicillin and statins.
The main symptom of board disease in sick pigs is that there will be some nodules on the surface of the board in pigs, which are generally the size of soybeans. At the onset, pigs will itch, and in severe cases, they will be thin and loose. At present, the main measures to treat pig board disease are: early prevention and control, ensuring the cleanliness and dryness of pig houses and regular disinfection. The later treatment measures should be spraying potassium permanganate solution or trichlorfon solution on pigs. If there is systemic infection in pigs with facial diseases, penicillin and dexamethasone should be injected.
4. Respiratory diseases and infectious respiratory diseases in pigs
The main symptoms of respiratory diseases in pigs are cough, shortness of breath and loss of appetite. If the situation is serious, there will be serious symptoms such as fever and pneumonia. At present, the prevention and treatment measures of respiratory diseases in pigs are mainly divided into feeding prevention and drug prevention. The main prevention and control measures of feeding are that the pigsty should be well ventilated, and the pigsty should be well protected from cold and heatstroke to ensure the overall living environment of the pigsty is good. The main drug control measures are oxytetracycline, amoxicillin and doxycycline.
There are many kinds of infectious respiratory diseases in pigs, and the symptoms are not obvious. The main symptoms are divided into early and late stages. Depression and chronic dry cough are the main symptoms in the early stage of sick pigs, and there will be less moss, growth retardation and dysplasia in the later stage. The main prevention and treatment measures include the use of high-dose penicillin drugs, but it is worth noting that if chronic respiratory diseases need long-term treatment and conditioning, we must not rush to achieve success.
Third, comprehensive measures to prevent and treat pig diseases.
The comprehensive measures to prevent and control pig diseases mainly include the following three aspects: First, scientific feeding should be carried out to improve the nutritional level of feed, and at the same time, the environment in pig houses should be improved, so as to put an end to the phenomenon of mixed living of livestock and poultry, reduce the contact between humans and infected animals, and reduce the spread between humans and animals. The second is to strengthen environmental disinfection, regularly implement key disinfection and mixed disinfection, and focus on disinfection in key areas of pig houses, and at the same time develop the habit of regular disinfection in pig houses in a short time. Third, strengthen the daily inspection, take different treatment and defense measures in time according to the different symptoms and characteristics of pigs, and take practical and effective measures when the disease occurs, so as to strive for the first treatment and prevent the spread of the disease. Fourth, it is necessary to strengthen the quarantine of pigs, which not only includes the safety of breeding, but also is the key to the safety of people eating pork. Therefore, we must master funny quarantine methods, never let a sick pig enter the market, and never disregard people's health for economic benefits. refer to
[1] Reporter Xiong Changbiao. Establish a major disease prevention and control system [N]. China medical journal, 2011-03-08b01.
Jiang Xueliang, Jiang Xiling, Jiang. Methods and measures of pig disease control [J]. Jilin Animal Husbandry and Veterinary Medicine, 2013,01:24-27.