The classification of poultry diseases, like the classification of other animal diseases, is usually classified according to the length of the disease, the cause and the disease system.
According to the length of the disease can be divided into the most acute type, acute type, subacute type and chronic type four. The most acute type of death of these diseases suddenly, no obvious symptoms and changes in dissection, such as the defeat of the birds. Acute type I disease develops rapidly, with a short course of illness of several hours and a length of two to three weeks, accompanied by loss of appetite and fever, such as Newcastle disease. The subacute form is an intermediate type between the acute form and the chronic form. The clinical symptoms are mild and the course of the disease is approximately three to six weeks. In the chronic type I disease, the onset of disease is slow, and the disease duration may range from six weeks to more than six months, such as poultry tuberculosis. In clinical practice, it is necessary to draw attention that there is no strict boundary between acute, subacute and chronic. Under certain conditions, transformation may occur. Acute type may be converted to subacute or chronic, and chronic may be degraded. The emergence of emergency people's livelihood.
According to the etiological classification, it can be divided into infections caused by bacteria, viruses, and other microorganisms invading the birds and reproduction of the birds; the role of general etiologies caused by infestation of various parasites into the body or the body surface. An ordinary disease caused by the lack of nutrients is a non-communicable disease. The preparation of this book is mainly based on this classification.
In order to analyze the disease, the general disease is usually classified according to the major disease systems such as the respiratory system, digestive system, and reproductive system. It must be borne in mind that the body is a complete unity. After suffering from a certain disease, it will affect the systemic organ system, but it will only appear clearly within an organ or within a certain system. China Agriculture Network
Stainless Steel Endoscope Cabinet
Stainless Steel Endoscope Cabinet,Medical Device Endoscope Storage Cabinet,Endoscope Stainless Steel Storage Cabinet,Endoscope Stainless Steel Cabinet
Taizhou Gaogang District Dixin Medical Equipment Co., Ltd. , https://www.dixinmedical.com