bursa Learn more about bursa
-
Causes and Countermeasures of Chicken immunosuppression
With the in-depth study of chicken health care, people gradually realize the harmfulness and seriousness of the immunosuppression problem of chicken flocks. As far as chickens are concerned, what is the cause of immunosuppression? 1 causes of immunosuppression 1.1 Diseases that can cause immunosuppression occur in chickens. In the prevention and treatment of diseases, common bursitis, avian influenza, avian leukemia, Marek's disease and so on are serious damage to the immune system of the body, causing immunosuppressive diseases. For example, bursitis is usually characterized by invasion of bursa of Fabricius.
2019-01-15 -
Chicken infectious anemia-pathological changes
The most characteristic pathological change of simple chicken infectious anemia is bone marrow atrophy. The bone marrow of thigh bone is fatty, yellowish or pink; thymus atrophy and hyperemia can lead to complete degeneration. With the increase of age of diseased chickens, thymus atrophy is easier to observe than bone marrow lesions. Fabricius bursa atrophy is not obvious and is often transient. Sometimes the weight decreases and the volume becomes smaller, while the appearance of the bursa of most diseased chickens is translucent. If the condition is serious, the liver and kidney can be enlarged and the yellow substance becomes brittle. Sometimes glandular gastric mucosal bleeding and subcutaneous and muscular bleeding can be seen.
2019-01-16 -
Recommended immunization procedure for raising meat-eating chickens
7-day-old: vaccinated against Newcastle disease, inoculated by eye or nose drops, in order to prevent Newcastle disease and transmission. 14 days old: vaccinated with bursa of Fabricius. The method of vaccination is to drink water (2 times the amount) in order to prevent bursal disease in broilers. 21 days old: inoculated with Newcastle disease vaccine. The vaccination method is drinking water (2 times the amount), the purpose is to prevent chicken Newcastle disease and transmission. 28 days old: vaccinated with bursa of Fabricius. The method of vaccination is to drink water (2 times the amount) in order to prevent bursal disease in broilers.
2019-01-16 -
How to raise guinea fowl?
Guinea fowl was originally a wild bird in Africa, and then it was domesticated and raised in China to become a breeding breed. Many people are not very familiar with some of the living habits of guinea fowl, so they do not know how to raise them. If you want to raise guinea fowl well, you must master guinea fowl.
2020-11-08 Pearl chicken how raise pearl originally for Africa -
How to do a good job of prevention and control in winter to improve the efficiency of raising firewood chickens
How to do a good job of prevention and control in winter to improve the efficiency of raising firewood chickens
2018-07-14 -
Feeding, reducing drinking water and increasing the treatment of dehydrated chicken bursal disease with traditional Chinese medicine
Feeding, reducing drinking water and increasing the treatment of dehydrated chicken bursal disease with traditional Chinese medicine
2018-07-11 -
Candidiasis of pigeon
The disease is also called candidiasis, thrush and so on. It is a common fungal infection in pigeons, characterized by the formation of white pseudomembrane and ulcers in the mucosa of the mouth, pharynx, esophagus and sac. 1. The main pathogen of the disease is Candida albicans, which is small, oval, 2-4 microns wide and grows in the mouth, throat, esophagus and wordy sac. 2. Popular, steam young pigeons and adult pigeons are susceptible to the disease.
2019-01-16 -
Prevention of lymphocytic leukemia in chickens
Chicken lymphocytic leukemia (LL) is a neoplastic disease caused by leukemia virus in near-sexually mature chickens or sexually mature chickens. It is characterized by slow epidemic, long course of disease, low mortality and tumors in liver, spleen, kidney and bursa of Fabricius. Chicken leukemia virus is a leukemia / sarcoma virus group of RNA tumor virus C of the family Retroviridae. This virus can not bear high temperature, 50 ℃, 8 minutes or 60 ℃. It can lose its activity in 30 seconds, but it can be preserved for several years at-60 ℃. (1) epidemic characteristics: under natural conditions
2019-01-16 -
Introduction to chicken farming skills, FAQ!
At present, there are more and more people raising chickens in China, but more and more people give up every year, they do not have enough skills in raising chickens, and they are full of confusion about whether to make money or not. due to peer competition, market factors, and little preparation work, the problems encountered cannot be solved. actually
2020-11-11 Chicken raising entry technology common question and answer now domestic -
Causes of poor immune effect of chickens and its countermeasures
Now the majority of chicken farmers generally respond to the following problems: it is good that ① is not vaccinated, as soon as the chickens are vaccinated, they will get sick. ② sometimes occurs in chicken flocks before they are vaccinated. No matter what kind of measures ③ takes, the immune effect of the vaccine is always poor. Why do these problems arise? The reason is that the immune organs of chickens are damaged. After the damage to the immune organs of chickens, the resistance of the body to bacterial and viral infections decreases, and the flocks of chickens can easily cause a variety of epidemics and bring huge economic losses to the chicken industry. that
2019-01-16 -
Identification of pigeon age
Identification of pigeon age
2018-07-01 -
Chicken lymphocytic leukemia
Similar symptoms: hepatomegaly, with gray-white nodular, chestnut or diffuse tumors on the surface. (similar to Chicken Cholera, Chicken Salmonellosis, Chicken colibacillosis, Chicken Tuberculosis, Chicken Campylobacter Hepatitis, Chicken tissue trichomoniasis, Chicken inclusion body Hepatitis, Chicken Marek's Disease (visceral Type), Chicken Fatty liver Syndrome, Chicken reticuloendotheliosis) specific symptoms: most of them occur in chickens at the age of 10 weeks; there are also tumor nodules in spleen, lung and kidney, and nodular tumors in bursa of Fabricius. Treatment prescription
2019-01-16 -
Measures to prevent respiratory diseases in chickens
Measures to prevent respiratory diseases of chickens: 1 choose the quality of chicken seedlings, do a good job of vaccination and immune selection of eggs without disease infection to hatch chicken seedlings to ensure the health of chicken seedlings. At the same time, the selected chicken seedlings should be vaccinated against infectious bursa, infectious bronchitis, infectious laryngotracheitis and infectious rhinitis to prevent the invasion of mycoplasma and other pathogens, which is also the key to the prevention of chronic respiratory diseases. (2) strengthen feeding management, reduce stress factors in winter and spring, and the weather is cold, so we must strengthen it vigorously.
2019-01-16 -
Prevention and treatment of bovine necrotic bacilli
Necrobacillosis is a chronic infectious disease caused by Clostridium necrosis. in clinic, tissue necrosis is common, such as skin, subcutaneous tissue and digestive tract mucosa, and metastatic necrosis can also be formed in the viscera. First, symptoms. The incubation period is 1-3 days. The common diseases in cattle are rotten hoof disease and diphtheria. The former is common in adult cattle. At the beginning of the disease, there are holes and holes in the bottom of the hoof, and there are necrotic and decaying inflammatory products. It is black and smelly like water, in addition, abscesses, pus leakage and surrounding skin necrosis are formed between the toes, the crown of the hoof and the heel. Inflammation can spread to synovial bursa and tendon
2019-01-15 -
Diagnosis and treatment of preparagonimiasis in chickens
Paragonimiasis is a common paragonimiasis in chickens. The incidence of adult hens is high, which is one of the main reasons affecting egg production and abnormal eggs. The pathogen is paragonimus, also known as tubal fluke. The insect body is flat like a small leaf, brownish red, about 3-9 mm long and 1-5 mm wide, and has two suckers on its head. Adults are parasitic in the reproductive organs of hens, mainly in the supraluminal bursa of the fallopian tube and cloaca. The eggs are excreted from the feces and fall into the water in the snail body.
2019-01-16 -
How to identify the age of pigeons
How to identify the age of pigeons
2018-09-07 -
Breeding techniques of Iron-footed Ma Chicken
Breeding techniques of Iron-footed Ma Chicken
2018-06-29 -
Prevention and treatment of Infectious bursal Disease in chickens
Prevention and treatment of Infectious bursal Disease in chickens
2018-07-04 -
Feeding techniques of green shell laying hens
Eggs and chicken are common poultry products on the dining table of ordinary people. nowadays, people have higher and higher requirements for pollution-free and green food. How to produce green chicken products, reduce breeding costs and expand profits is an urgent need to know.
2020-11-08 Green shell laying hens raising technology eggs chicken yes -
Black-bone chicken disease immune program
Bacterial diseases of black-bone chickens can be prevented by antibiotics, while viral diseases can only be prevented by immunization. Therefore, it is particularly important to formulate reasonable immunization procedures. Only scientific and reasonable immunization procedures can ensure the health of chickens and achieve maximum economic benefits. Immunization procedures should be drawn up in accordance with the epidemic situation and breeding environment in the area, that is, infectious diseases that have never occurred in the area should not be prevented, infectious diseases that have not occurred in the area before and have just begun to occur and are seriously harmful must be prevented, and serious diseases that occur frequently must be prevented.
2019-01-16