Prevention and treatment of mixed infection of respiratory tract and Escherichia coli in broilers

At present, the incidence of respiratory diseases in broilers is high, the treatment is difficult, complications, and secondary diseases are many. The dosage during treatment is large, easy to repeat, and the treatment is not complete for a long time, and there will be mixed infection of Newcastle disease or influenza virus. At this time, the difficulty of treatment is increased, the mortality rate is increased, the medication cost is increased, and the cost is increased. The burden on the farmers, the farmers have no clue, and even secretly crying. Why is E. coli disease so difficult to treat? According to my analysis, many farmers have made a lot of mistakes in the management of the farm.

Ventilation: Some farmers use a shack to save some insulation costs during brooding. There are also some farmers who are lazy, as long as the heat is not dead, I play with me, play enough to go to see the chicken house, and control his good and bad ventilation. In fact, such an approach is not feasible. The purpose of ventilation is to eliminate harmful gases in the house, supply oxygen for the chickens to grow adequately, balance the relative temperature and humidity in the house, and reduce the pathogens such as bacteria, viruses, molds and harmful gases in the house. Stay. Good ventilation can reduce the incidence of ascites, respiratory diseases and colibacillosis. Special winter ventilation is a traditional Chinese medicine that controls the environment inside the house. However, the precondition for ventilation is that there must be sufficient temperature and proper ventilation to prevent the cold from being enough to cause a cold.

Medication: Some farmers, as long as they see E. coli disease in the flock, no matter what the ingredients, large doses of the head of the drug, the dose is often 2-3 times, causing waste of drugs, and even lead to enhanced bacterial resistance , or chicken overdose poisoning. After a course of treatment, if the effect is not good, continue to repeat large doses of medication. The purpose of taking antibacterial drugs is to control and treat the disease. When using it, it is necessary to understand the ingredients of the drug and the amount of the drug. The medication should be from narrow spectrum to broad spectrum, from prevention to treatment. Some farmers always think that the compound preparation is not as good as the original powder, the price of the original powder is low, and the effect is good. In fact, the effect of the original powder treatment is far less effective than the compound preparation. In the case of Escherichia coli, the compound preparation can mainly treat Escherichia coli, treat the respiratory tract, the intestine, and contain the respiratory repair factor and intestinal mucosal repair factor. Therefore, the effect and effect of the compound preparation is far from the original powder.

The emergence of drug-resistant strains: E. coli is highly resistant to drugs, and after drug resistance, drug treatment is difficult and treatment is not complete. Abuse of antibiotics in farming is the most common thing. Most of the farmers do not understand the ingredients of the drug, do not understand the role of the drug, as long as it is E. coli disease. Some undocumented veterinarians who have been born halfway, have raised chicken for a few years, have accumulated some experience, and have acted as technicians. They have to go to other farmers to introduce tens of thousands of dollars of medicine. In fact, to guide farmers, you need a variety of experience and technology, to be proficient in farm management techniques, pathological analysis, pharmacological analysis, anatomical experience, bacteriology, epidemiology, bacterial microscopy, bacterial drug sensitivity experiments, viruses, antibody levels A range of technical levels such as detection technology. So being a qualified technician is not very simple. If the drug-sensitive test can be carried out after the occurrence of E. coli disease, and the drug that is most sensitive to bacteria is selected, the effect will be much better, and it will be cured soon. Therefore, it is not feasible to abuse drugs. It is best to use drugs rationally under the guidance of experienced and technical personnel to give the farm a good income.

Following onset and mixed infections: E. coli disease is generally not likely to occur alone, mostly mixed infections or secondary infections. E. coli is generally secondary to the occurrence of respiratory diseases and intestinal diseases. If the chickens have respiratory diseases, they will not receive timely treatment, and the air in the house will be polluted, and the lack of oxygen in the house will lead to aggravation of respiratory diseases and infection of mycoplasma. Once the mycoplasma is mixed with E. coli, it forms air sacs, pericarditis, perihepatitis, and peritonitis, which brings difficulties to the treatment. If the virus infection is likely to occur after 3 days of ineffective and effective treatment, the flock mortality rate will rise rapidly. This is the therapeutic concept of treating mixed infections of mycoplasma and E. coli, antiviral. However, it is best to use drugs for the treatment of systemic infections (ciprofloxacin, ofloxacin, norfloxacin, ceftriaxone) for the treatment of this disease. The effect of these drugs on the treatment of mixed infection with Escherichia coli and mycoplasma is better. But the effects of these medications are sometimes not very thorough. According to my years of experience in animal husbandry and veterinary medicine, the efficacy of traditional Chinese medicine in the treatment of mixed infection of E. coli and mycoplasma is much better than that of western medicine. Because most Chinese medicines have good killing and inhibiting effects on bacteria and viruses, and bacteria have no resistance to traditional Chinese medicines, the treatment effect is thorough, and it is not easy to relapse after curing. In addition, Chinese medicine also contains a lot of plant polysaccharides, which can enhance the body's resistance to bacteria and viruses, stimulate the body to produce antibodies, and achieve anti-viral effects. Some ingredients in traditional Chinese medicine can also relieve asthma, phlegm, and cough, against Escherichia coli and Respiratory diseases caused by mixed infection with mycoplasma can be cured without the addition of drugs for treating respiratory diseases. When using the medicine, some technicians only know that the sick chicken is E. coli when dissecting the chicken. However, it is impossible to tell whether there is a mixed infection of mycoplasma. It is only a drug for treating E. coli. In fact, this is completely wrong, which will cause the cause. The disease analysis is not thorough enough to delay the treatment of the disease. It is hoped that the farmers will have a deep understanding of the technicians in the breeding and see if he really has the ability and level to take the responsibility of technical guidance, so as not to cause great losses to his own farming.

Not E. coli, nor mycoplasma but kidney tuberculosis or flu: pay attention to distinguish, one side of the eye swollen, bilateral eye swelling, tearing, foam in the eyes, and cough, snoring, frog pond and so on. Recently, misdiagnosed cases are common, and the plaque kidney, kidney hemorrhage, and bursal cyst are prevalent in Shandong. Many farmers have suffered from faecal sac symptoms and have suffered from a large number of deaths. There are no obvious effects in several courses of nephropathy. After investigation, it was found that most cases of nephritis, necrotic kidney and kidney hemorrhage occurred in 13---25 days, and most of the bursal sac appeared in 25----35 days. Farmers friends only need to grasp the time, use antiviral drugs as soon as possible combined with symptomatic treatment, while controlling secondary infections generally quickly effect and control the disease.