Three elements of Chicken Disease diagnosis

Chicken farmers will inevitably encounter the incidence of chicken flocks in the process of breeding. For some experienced chicken farmers, there is already a relatively perfect and scientific method for diagnosing chicken disease, but for some chicken farmers who do not raise chickens for a long time and on a small scale, due to the lack of systematic breeding experience, very often there is nothing I can do when I encounter chicken disease, and I don't know how to diagnose it. In this article, we do not talk about specific diagnostic methods, but talk about the three scientific elements of chicken disease diagnosis.

? 1. Clinical diagnosis.

The so-called clinical diagnosis is to diagnose through the external shape of the flock, such as the feeding condition, breathing state, mental state, fecal shape and so on. Because of many chicken diseases, chicken farmers can only judge whether there is something wrong with the chickens by their clinical manifestations, so it is very important to pay close attention to the chickens. Once you find an abnormality, you should immediately judge what kind of disease you may be suffering from according to your symptoms, and then use medication for the symptoms. However, considering that the external manifestations of many chicken diseases are very similar, especially in the early stage, loss of appetite is a necessary symptom of almost every chicken disease, so it is necessary to diagnose through the second element below.

? 2. Anatomical diagnosis.

By observing chicken diseases that cannot be diagnosed, diagnosis needs to be made through anatomy. After dissection, the changes of chicken viscera were observed so as to further diagnose the disease of chicken flock. For example, colibacillosis, which is common in chickens, has obvious pericardial and hepatopathic conditions; for example, the Ankara virus that has only begun to occur in recent years has obvious pericardial effusion; for example, bursal disease has enlarged Fabricius cysts and bleeding in chickens; for example, in sick and dead chickens with pullorum, there will be necrotic spots on the surface of the liver. All these can not be seen externally and can only be diagnosed by autopsy.

? 3. Laboratory diagnosis.

Although for most chicken farmers, through the above two ways, we can basically judge that most chickens are sick, but there are some chicken diseases that even autopsy can not find obvious visceral lesions, but chickens continue to die, at this time can only be sent to a special laboratory for testing, isolation of bacteria or viruses, in order to finally confirm what disease the chickens have. Specific laboratory anatomy points are generally specialized agricultural research universities and research institutes, which can be asked by the local agricultural department.