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How to prevent duck infectious serositis? Detailed explanation of treatment options
[Preventive measures] (1) Strengthen feeding management: avoid excessive stocking density and overcrowding of ducks; the duck flock should follow all-in/all-out management, with disinfection and emptying of the house for 2 to 4 weeks; litter should be kept as dry as possible. (2) Immunoprevention: vaccines for this disease have been used to prevent it, with good results. Formalin-inactivated vaccines made from strains of different serotypes, with ducklings immunized once each at 2 and 3 weeks of age, can maintain protection from disease until 7 weeks of age, but the above method requires the vaccine to be used twice, which is not easy to promote and apply in the field. A combined inactivated vaccine of Escherichia coli and Riemerella anatipestifer has also been trial-produced, and test results show that it can significantly reduce mortality more than the use of Riemerella anatipestifer inactivated vaccine alone. In recent years, the United States has successfully developed an attenuated live vaccine including serotypes 1, 2, and 5; this vaccine, administered to 1-day-old ducklings by aerosol or drinking water immunization, can produce significant protective effects. In China, China Agricultural University, South China Agricultural University, Sichuan Agricultural University, and the Guangdong Provincial Institute of Poultry Science, among other institutions, have in recent years conducted a large amount of effective research on the prevention and control of this disease, and the inactivated vaccines developed have been promoted and applied over a relatively large area, with good immunization results. Cheng Anchun and others at the Poultry Disease Prevention and Control Research Center of Sichuan Agricultural University, targeting the short rearing cycle of commercial ducks, developed the "duck infectious serositis propolis composite adjuvant inactivated vaccine" and the "duck infectious serositis-duckling Escherichia coli multivalent propolis composite adjuvant combined inactivated vaccine"; the latter was mainly developed to address the characteristics of concurrent infection of this disease with duck Escherichia coli. After trial use, it overcame the shortcoming of oil-emulsion vaccines in producing immunity slowly, and resistance to challenge with virulent strains could be achieved on the 5th day.
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Symptoms and Prevention and Treatment Methods of Japanese Encephalitis in Pigs
An acute infectious disease caused by a virus that affects both humans and animals. After pigs contract this disease, it mainly causes abortion in sows and acute orchitis in breeding boars. [Pathogen] It is caused by the Japanese encephalitis virus. This virus is very small and exists in the brain, spleen, blood and swollen testes of diseased animals; in addition, blood-sucking Aedes mosquitoes and Culex mosquitoes are the reservoir hosts of this virus. The virus has weak resistance, and general disinfectants can quickly kill it. [Epidemiology] (1) It often occurs in late summer and early autumn, with obvious seasonality,
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Key Points for Integrated Prevention and Control of Infectious Canine Hepatitis
Infectious canine hepatitis is an acute infectious disease caused by canine adenovirus infection, characterized by mainly affecting puppies under 1 year of age, often causing acute necrotizing hepatitis, and clinically often co-infecting with canine distemper. This disease occurs almost worldwide and is a common infectious disease of dogs, but is often overlooked or misdiagnosed by owners; therefore, adopting integrated prevention and control measures for this disease is very important for the healthy development of the dog breeding industry. 1 Outbreak situation A dog-keeping household in Zhaoyuan County on 200
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Symptoms and Prevention Methods of Duck Arthritis Syndrome
1. Main symptoms. Sick ducks mainly show joint swelling, most commonly in the hock joint, followed by the knee joint, hip joint and toe joints. The affected joints are swollen and purplish-red, feel hot on palpation, are relatively soft at the beginning and then gradually harden, with severe lameness or inability to walk, reduced feed intake, gradual weight loss and increased mortality. 2. Preventive measures. The disease is associated with a variety of bacterial infections, such as Staphylococcus, Salmonella, Riemerella anatipestifer, etc. In the feeding system, the "all-in
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Preventing Porcine Japanese Encephalitis in Early Summer
As early summer arrives, the weather gradually grows hotter, and various mosquitoes (such as Culex, Aedes, and Anopheles) begin to multiply in large numbers. Mosquitoes are an important vector for the transmission of Japanese encephalitis virus; after feeding on the blood of infected animals, they can carry the virus for life and can also carry the virus through the winter, becoming the source of infection the following year. Japanese encephalitis is highly harmful and can infect many kinds of animals and humans, with the most severe harm to pigs. In particular, it can damage the reproductive performance of pigs, causing pregnant sows to miscarry and produce stillborn, weak, or mummified fetuses, and causing orchitis in boars.
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Diagnosis, Prevention and Treatment of Infectious Canine Hepatitis
Infectious canine hepatitis is an acute, highly contagious, septicemic infectious disease of dogs caused by canine adenovirus type I, characterized by circulatory disturbance, central necrosis of the hepatic lobules, and intranuclear inclusion bodies in the liver parenchyma and endothelial cells. Dogs and foxes are highly susceptible, and coyotes, raccoons and black bears are also susceptible. It can also infect humans, but does not cause clinical symptoms. The pathogen, canine infectious hepatitis virus, belongs to the family Adenoviridae and the genus Mastadenovirus, and has only one antigenic type. The virus is quite resistant; it can survive on contaminated objects for 10 days to 14 days, can survive at room temperature for 10 weeks to 16 weeks, and remains infectious after 30 minutes at 56°C, and is only killed after 3 minutes to 5 minutes at 60°C. It is tolerant to lipid solvents such as ether and chloroform. Phenol, iodine tincture and caustic soda are commonly used effective disinfectants.
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Symptoms and Prevention and Treatment Methods of Gastritis in Dogs and Cats
Gastritis in dogs and cats refers to acute or chronic inflammation of the gastric mucosa. In some cases it can extend to the intestinal mucosa, resulting in gastroenteritis. Gastritis is one of the most common diseases in dogs and cats. The main causes are pets accidentally eating spoiled or hard-to-digest food and foreign objects. In addition, other diseases such as canine distemper, infectious canine hepatitis, parvoviral enteritis, liver fluke, pancreatitis, nephritis, and intestinal parasites can also trigger gastritis. The main symptoms of gastritis in dogs and cats are vomiting, abdominal pain, and depression. Affected pets have a relatively
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Swine necrotic dermatitis requires focused prevention and control in summer and autumn
I had never seen swine necrotic dermatitis before, and thought it was an old disease that might have already disappeared in our area. Unexpectedly, in July last year, it occurred at a small-scale pig farm in our county. The diagnosis and treatment are summarized below to remind farmers to pay attention to the prevention and control of this disease. 1 Disease situation The normal inventory of this pig farm was 70-80 head. Because the pig market was poor at the time, the farm owner brought in more pigs, reaching 100 head. By July, when the pigs reached about 60 kg, it was found that some pigs on the farm had broken skin, itching, and scabs, mainly
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Causes, Diagnosis, and Prevention of Gastritis in Dogs (Part 1)
Gastritis can be divided into two types: acute gastritis and chronic gastritis. Acute gastritis is more common in dogs. [Causes] First, due to overeating, or eating spoiled food, foreign objects, or irritating drugs, etc. Second, it occurs secondary to certain infectious and parasitic diseases. Third, the gastric mucosa is stimulated over a long period, anemia, lack of gastric acid, malnutrition, etc. [Key points of diagnosis] Depression, vomiting, and abdominal pain are the main symptoms in affected dogs
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What Should You Do If a Snake Gets Stomatitis? A Detailed Guide to Prevention and Treatment
After snakes first wake from hibernation, their bodies are weak and thin, and certain harmful bacteria invade the snake's neck, causing swollen stomatitis. The sick snake's mouth stays open and cannot close, it cannot swallow food, and ultimately it starves to death from not eating or drinking. The treatment method is: rinse the sick snake's mouth with normal saline, then wipe both jaws with gentian violet solution, rinsing and applying once each per day, and continue until the inflammation subsides and the swelling goes down.
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