Angora main disease symptoms and control methods Section rabbit hemorrhagic disease (RHDV) in 1984, the disease first in Jiangsu Wuxi, Yixing, Huaiyin, etc. outbreak, and then gradually spread, and then spread to the 20 I provinces and cities. In addition to the current epidemic of the disease in many Asian, European countries, but also it has spread to parts of the Americas and Australia. So far the disease has become the enemy of the world's rabbit industry. The disease is a highly infectious diseases of rabbits, mainly against Green, prime rabbits, mortality up to one hundred percent. Rabbit milk is not susceptible. However, the recent popular features have young tendency. Symptoms: a highly infectious disease we are rabbits, according to the most acute symptoms can be divided into acute, subacute, and chronic diseases. 1, the most acute: after 10-20 hours of healthy rabbits infected with the virus that is sudden death, death does not show any symptoms, but in the cage bounce a few times, fell dead instantly. Such occurred in the early epidemic. 2, acute: 24-40 hours post healthy rabbits infected with the virus, the body temperature rises to about 41 ℃, depression, reluctant to move, I want to drink water. Before dying suddenly excited, running in the cage, then prostrate limbs, hind legs propped trembling side, a random draw or limbs screaming a few times and died. Some dead rabbit nasal outflow foamy blood, such epidemic occurred in the medium term. The vast majority occur in more than two young rabbits and adult rabbits. Before his death, anal relaxation, a small amount of contaminated rabbit hair around the anus yellow mucus, dung outside with plastic wrap yellowish secretions. 3, subacute: generally occurs late in the popular, young rabbits occurred within 3 months, rabbits severe weight loss, dull coat, duration of 2-3 days, the majority of poor prognosis. 4, chronic form: almost two years to find out some sick rabbit depression, forelimb stretch to both sides, head low touchdown limbs lie open, eat or drink, and some can drag 5-6 days, and finally died of exhaustion. This type of reason for further study. Pathological changes: The disease is a systemic disease, so dead rabbit thymus, lung, liver, spleen, kidneys and other organs in histological obvious degeneration, necrosis and intravascular thrombosis and other features. Thymus: glue-like edema, and a few large needle to miliary bleeding. Lung: lung bleeding points from the needle to the mung bean as well as large cap ranging diffuse hemorrhage. Liver: enlargement, crisp, cut and rough and there is bleeding. 5 gallbladder: enlargement, some filled with thick brownish green bile, gall bladder mucosal shedding. Kidney: swelling, purple-brown, and see the great range of bleeding in the small, crisp, cut valgus, cut and juicy. Spleen: enlargement, the edge blunt garden, dark purple color, showing high degree of congestion, hemorrhage, so fragile, wound eversion, plastic-like edema, blurred section splenic structure. Mesenteric lymph nodes: glue-like edema, section bleeding points. Bladder: urine, filled with dried yellow color of urine, in some cases urine protein curd mixed with flocculent, mucosal thickening, wrinkled. Nervous System: dura congestion, in some cases, a small dot bleeding. Prevention: 1, regular use of this vaccine vaccination. 2, in order to prevent the spread of the disease, should pay attention to the dead rabbit handling dead rabbit should be buried or burned, poisoned sick rabbit should be absolutely isolated, excreta and all rearing has required thorough disinfection. 3, is strictly prohibited to purchase rabbits from the affected areas. Prohibited from trading in the affected areas to the merchant or cut rabbit rabbit. During the epidemic of the disease non-personnel exchanges. 4, environmental sanitation and effective measures to control the disease, and regularly disinfected Hutch, rabbit cages and bowls, etc. is very important work. Treatment: 1, drug treatment: Because this disease is a viral disease, rapid onset, high mortality, the use of drugs is difficult to be effective. 2, hyperimmune serum therapy: application of anti-epidemic areas "rabbit plague" serum treatment, but also for passive immunization, the better. Usually after the onset of high fever and other clinical symptoms yet incurable. With 4 ml serum, subcutaneous injection can be. It can also be a small amount of serum first subcutaneous, separated by 5-10 minutes after taking 4 ml serum plus 5% glucose saline 10-20 ml intravenous injection, the better. If the incidence of disease in rabbits have ten hours, fever, clinical symptoms, namely the use of hyperimmune serum therapy, the effect is poor. In 7-10 days after the injection of serum, still re-vaccinated.