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Pay Attention To Prevent White Crown Disease In The Rainy season

Jul. 15, 2018

In the rainy summer and autumn, chickens often have a disease characterized by whitening of the cockscomb, which brings a large economic loss to the chicken industry. This is probably the disease of white blast disease, also known as white crown disease. . The reason why this disease is easy to erupt every summer and autumn rainy season is because the cocoon is breeding very fast in a humid environment above 20 °C, and Cangjie is the vector of the disease.

First, clinical symptoms

The symptoms of chicks with this disease are obvious. The temperature of the sick chicken is elevated, the appetite is weak, the spirit is depressed, the hooligans are yellow, white or yellowish green, the growth and development are blocked, the feathers are loose, the walking is difficult, the breathing is difficult, and the hemoptysis is caused. Laying hens generally produce about 10% lower eggs. The most obvious feature of all sick chickens is anemia, and the cockscomb is pale. After the necropsy, the corpse was thin, the blood was thin, and the whole body muscle was pale. Hepatosplenomegaly, hemorrhage on the surface, and white nodules with large miliary liver. The digestive tract is congested and there is blood in the abdominal cavity. Kidney hemorrhage, point-like bleeding on the leg muscles and chest muscles. According to the onset season, clinical symptoms and necropsy changes, a preliminary diagnosis can be made. Combined with blood smear microscopy, the worm can be diagnosed.

Second, preventive measures

The main measure to prevent this disease is to put an end to the vector--cun, and Anthelmintics Drugs such as Albendazole Anthelmintic Tablets should be sprayed every week inside and outside the house during the epidemic season, such as 0.01% trichlorfon or 0.03% fly poisonous phosphorus. Secondly, drugs can be added to the feed during the popular season for prevention, such as Taishenjing, Quiteling, and lovely Dan. When the disease occurs, the treatment is preferred. The original powder dosage is 2.5 kg of the mixture. The mixture is used for 5 to 7 days. This medicine has special effects and has no adverse effect on laying eggs. It can also be used with synergistic sulfadiazine, 25 kg per kg of body weight. In milligrams, the first amount can be doubled for 3 to 4 days; or chloroquine is used, 100 mg orally per kilogram of body weight, once a day, for 3 days, and then for 3 days every 2 days. Continuous use of the same drug in the same chicken farm may result in resistance, so use of another drug or a combination of two effective drugs over a period of time can achieve good therapeutic and preventive effects.

Albendazole Anthelmintic Tablets