Humidity, temperature and cold stress are the environmental factors leading to lung injury, while viruses, bacteria and atypical pathogens are the pathogenic factors leading to pneumonia-black lung. Management and disease prevention and control are mutually causal, management is the environmental guarantee for the comfortable growth of chickens, and disease prevention and control is a targeted epidemic prevention and control hand.
Daryun Heifeiqing, which contains licorice, ephedrine, Shuanghuanglian and Fructus Forsythiae, can be used for rapidly treating black lung, pulmonary hemorrhage, pulmonary edema, respiratory diseases and other problems in broilers, and protecting liver and kidney. ? Chicken lung disease can occur in the following two ways.
1, viral or bacterial infection, congestion and edema at the initial stage of onset, and then necrosis;
2. Environmental problems, misunderstanding of negative pressure utilization, excessive feeding density, poor ventilation, cold stress, poor temperature and humidity control and high harmful gas content will all cause respiratory diseases.
Virus or bacterial infection causes lung diseases in chickens, which are congested at the beginning of the disease, and then the lesions are necrotic and black; Excessive breeding density, poor ventilation in chicken houses and high content of harmful gases can also cause respiratory diseases. In the early stage, one lung was red and purple, and with the aggravation of the disease, both lungs were black and purple, leading to death.
Main symptoms: abdominal breathing-stretching the neck to breathe, shrinking the neck to suck.