There is a saying in chicken raising that "hot snoring, cold cough", and the frequent occurrence of "hot snoring" in summer has also become a major problem that plagues farmers.
Farmers all know that chickens are easy to raise in summer, with good ventilation and high temperature. Chickens are not easy to catch colds, and the incidence of respiratory diseases such as air sac inflammation is low. But raising chickens also has a summer-specific respiratory disease: heat snoring.
"Hot Snoring" Symptoms
The spirit of the flock is very good and the feed intake is normal. There is obvious phlegm in the throat of the chicken, and there is a clear snoring sound with the breathing. After dissecting the snoring chicken, it was found that the trachea, lungs, air sacs and other positions are relatively clean. Some chickens have been sick for a long time, and there will be slight bleeding in the throat.
All snoring chickens have a large amount of sputum in the throat, and the sputum is relatively viscous.
The pathogenesis of "hot snoring"
In the hot summer weather, chickens have no sweat glands to dissipate heat. At this time, chickens will open their wings, open their mouths to breathe, and take away excess heat from the body by breathing quickly.
When the chicken opens its mouth to breathe, the nasal cavity loses its filtering effect on the air. At this time, the dust in the air and the pathogenic bacteria will directly enter the trachea of the chicken.
The tracheal mucosa secretes mucus to wrap the dust and pathogenic bacteria, and then discharge it to the larynx through the tracheal cilia, and then the chicken excretes the sputum from the body or brings it to the digestive system by drinking water or shaking the head, so as to reduce the phlegm in the larynx.
But in summer, when the chicken opens its mouth to breathe, the air flow is fast, and the water in the sputum is evaporated in large quantities, forming sticky phlegm. These sticky phlegm is located in the throat, and it is difficult to be eliminated in a short time, and the snoring sound is formed along with the breathing process of the chicken.
The wrong treatment idea for "hot snoring"
Many people do not understand the "respiratory system", which is a symptom, not a specific disease. The pathogenesis of respiratory tract is divided into physiological and pathological pathogenesis. This kind of "hot snoring" is a physiological disease, which is a "conditioned disease".
Many farmers do not understand, and treat heat snoring as other diseases. They use a large number of Maxingshigan powder, doxycycline, tylosin, and even tylosin, azithromycin, etc., which cost a lot of medicines and have little effect , and even the symptoms of overdose such as black liver and kidney enlargement in chickens.
Correct prevention and treatment of "hot snoring"
To treat respiratory diseases, we must understand how the disease occurs. When we understand the cause of "hot snoring", we can no longer use a lot of antibiotics to control it.
This is a conditional disease, a disease unique to summer, and a consequence of chickens coping with high temperature weather. When the weather is cool, the chicken does not need to dissipate heat from the mouth, the filtering effect of the nasal cavity can work normally, and the snoring will slowly go down.
In daily management, the temperature of the chicken house can be reduced by means of fans, water curtains, roof sprinklers, sunshade nets, etc., and the snoring will naturally decrease.
If the snoring is severe, or the snoring time is relatively long, drugs that strengthen the resistance of the chicken respiratory mucosa and reduce phlegm can be used. At the same time with a small amount of antibiotics for anti-inflammatory.
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