Disease that affect poultry during Autumn Season

Disease that affect poultry during Autumn Season

In recent years, poultry diseases have become increasingly complex, which has brought certain difficulties to the epidemic prevention work. After the hot summer, autumn comes, and the temperature difference between day and night is large, easy to cool down windy weather, and sometimes rainy. Therefore, it is easy to produce stress responses in poultry, and the body's disease resistance declines, thereby inducing a variety of diseases, affecting the development of the chicken industry and causing economic losses to farmers.

According to the characteristics of the autumn climate, farmers should pay special attention to the prevention and treatment of the following diseases:

Flu (Influenza).

If the poultry is sick with influenza, the respiratory symptoms are abnormal, the chickens have a small snoring, can not be heard during the day, and it is obvious to hear after the lights are turned off at night, there is a sharp sound, breathing difficulties. The chickens will also have a small number of listless spirits, pale faces, reduced intake of food and water, decreased egg production, and slowed-down growth. Yellow-green, pale stools appear.

Liver diseases 

The liver is the largest chemical plant in the poultry body. Its main functions include carbohydrate metabolism, lipid metabolism, protein metabolism, glycogen storage, trace elements and vitamins, blood filtration, toxin removal, and bile secretion. There are many causes of liver disease, such as adenovirus inclusion body hepatitis, mainly manifested as anemia, jaundice, liver enlargement, paleness, brittle, the surface has different degrees of blood spots and hemorrhagic spots, the liver faded brown to yellow. Mycotoxins can also cause liver lesions in poultry, amyloidosis, yellow staining, mottled, blood spots, etc. There are additive and synergistic effects between several mycotoxins so that the virulence is enhanced. E. coli, Salmonella, Clostridium Wilson, mycoplasma, and so on will also cause liver lesions, because in the growth and reproduction of the bacteria will continue to produce external toxins, after death to produce endotoxins, these toxins are proteins, all need to detoxify the liver to detoxify, so it is easy to cause liver disease.

Gastrointestinal diseases

Necrotizing enteritis is one of the most harmful intestinal diseases in the poultry industry. Recent data from some countries in the European Union show a marked increase in mortality in flocks with acute cases of clostridium perfringens, with losses of up to 1% per day, compared with an incidence of around 3-10%. Necrotizing enteritis usually occurs suddenly, and sick chickens often die suddenly without obvious symptoms. The course of intestinal disease is slightly longer, and you can see that the sick chicken is depressed, the feathers are rough, the appetite is poor or abandoned, and the stool is black or mixed with blood. If the treatment is timely, it can stop in 1-2 weeks.

Respiratory diseases

Poultry respiratory diseases are prone to infectious rhinitis, infectious bronchitis, and so on. There are many reasons for the respiratory disease of chickens, the autumn climate is changeable, the temperature difference between day and night becomes large, and the chicks are prone to cold, resulting in mycoplasma disease and respiratory symptoms. Sick chickens show symptoms of runny nose, sneezing, and facial edema. Chicken farms need to do a good job of hygiene, timely ventilation, reduce ammonia, and sulfur dioxide in the chicken house, but also pay attention to heat preservation, and reduce the occurrence of colds.

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Geoffrey Nevine — IT Services and IT Consulting

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