The weather is dry since the beginning of the winter and the incidence of chickens is high. Especially the chicken egg production rate caused by multiple factors is the most common. Now a case reported by the author recently is reported as follows. 1. Incidence. On November 3rd, 1800 240-day laying hens reared by Zhang chicken farmers in Tangxian County had a marked decline in egg production rate, increased white eggs, soft shell eggs, thin stools, breathing “gurgling†and chickens in a row. The condition of death. 2. Clinical symptoms. The diseased chicken was depressed, swollen, edema around the eyelids, feathers, and some of the crowns and flesh edges became thicker and stiffer. They touched the heat and some of the blood was bleeding; necking, drowsy, and the feed intake decreased significantly. The amount increased, the crown edges were purple-black; Some chickens coughed, issued "grilling" sounds, and the legs had bloody spots; the initial diarrhea, the yellow, green or yellow-green fusion manure in the middle and later stages, some late chickens Yellow loose stools; egg production rate dropped from 91% to 84%, lighter eggshell color, while malformed eggs, white eggs, soft shell eggs increased. 3. The necropsy. Pericardial effusion, cardiac coronary fat hemorrhage, myocardial hemorrhage; renal enlargement hemorrhage, some were spotted kidney; gastrointestinal lymphoid follicle enlargement, congestion, hemorrhage; meningeal congestion, hemorrhage; throat mucus, tracheal mucosal congestion and edema; Hemorrhage in abdominal fat; liver enlargement, bleeding; pulmonary congestion, hemorrhage; spleen hemorrhage; pancreatic gray necrosis, individual pancreas atrophy; diffuse duodenal hemorrhage, cecal tonsillar individual hemorrhage; balloon, peritoneal turbidity, There are yellow cheese-like substances; the appearance of the intestinal wall has bleeding from rice grains to soy bean size; some chicken glandular papilla swelling and bleeding, muscle stomach bleeding; follicular congestion, bleeding, rupture formation of peritonitis; fallopian tube with purulent secretions, edema, Bleeding, including undischarged deformed eggs, white eggs, and soft shell eggs. 4. Diagnosis. According to the epidemic characteristics, clinical symptoms and pathological changes, it was diagnosed as chicken egg dropping syndrome caused by mixed virus and bacteria infection. 5. Comprehensive prevention and control. (1) Treatment. In the morning, the chickens were allowed to drink intestinal rods (main component: ciprofloxacin lactate) and phytohemagglutinin; in the afternoon, the bacteria (main component: ofloxacin) and astragalus polysaccharides were used as drinking continuants for 3 consecutive days; Into the Qing Xi Da Dapai (main components: Banlangen, wolfberry crisp, Shuanghuanglian, bezoar, Ganoderma lucidum polysaccharides), used before boiling water boring for 30 minutes, concentrated feeding once at night. Insulin-free chickens are given intramuscular injections of amikacin, bupleurum, and antiviral drugs; in addition, sufficient electrolysis is provided to the flock for free drinking. (2) Prevention. Strengthen feeding and management, provide high-quality, nutritionally balanced feed, improve the resistance of chickens; pay attention to wind and warmth in winter, avoid all kinds of stress factors; keep the environment of chicken coops, clean chicken excrement in time, strengthen ventilation, keep air fresh Adhere to the daily disinfection system; regularly carry out Newcastle disease and bird flu antibody detection in chickens, and timely immunization according to the level of antibody; add “Huang Lian Jie Du San†or astragalus polysaccharides to the daily feed, feed for 7 days first, half an hour later, and then feed 7 days, while regularly drinking gold vitamin it, vitamin C, can effectively reduce the incidence of chickens infected with the disease. High Pressure Water Gun/Air Rifle High Pressure Water Gun/Air Rifle,Oil-Free Silent Air Compressor,Air Compressor For Hospital,Dentistry Air Compressor Taizhou Gaogang District Dixin Medical Equipment Co., Ltd. , https://www.dixinmedical.com