How to prevent and treat fox umbilical inflammation? Detailed explanation of fox disease prevention and treatment techniques
Fox umbilical inflammation is an acute viral disease of foxes characterized by damage to the central nervous system, accompanied by increased excitability and epileptic seizures.
1. Pathogen The pathogen of this disease is fox adenovirus, also known as fox umbilical inflammation virus. The virus has strong resistance, is resistant to acid and ether, and can withstand 70% alcohol treatment. It can be killed by disinfectants such as 4% Lysol, 2% sodium hydroxide, and 20% bleaching powder. The fox adenovirus isolated in China is basically the same as canine infectious hepatitis virus, and can agglutinate guinea pig, chicken, and human type O red blood cells at 4°C.
2. Epidemiological characteristics Under natural conditions, young foxes aged 8 to 10 months are susceptible, and the mortality rate is 10% to 20%. This disease can be transmitted through the digestive tract and respiratory tract. Endemicity is one of the characteristics of this disease. Contaminated fur farms often have cases in young foxes for many years, generally occurring in summer and autumn (July to October). The prolongation of the epidemic period and a certain degree of contact transmission are another feature of this disease.
3. Clinical symptoms The incubation period is 6 to 7 days, with elevated body temperature, nasal discharge, diarrhea, and nystagmus. Subsequently, excitement, clonic muscle spasms, and extreme sensitivity to stimuli occur. In the later stage, there is incoordination of movement, mental depression, sluggishness, and hemiplegia or paraplegia. The course of the disease is about 2 to 3 days, and it mostly ends in death. In the chronic course of this disease, it causes miscarriage and difficult birth in female foxes, and death of fox cubs in the first few days after birth.
4. Anatomical pathological changes Hemorrhage in the brain parenchyma, meninges, and cerebrospinal cord, hemorrhage in the endocardium, pleura, pancreas, and lungs, and enlarged liver? ?
5. Diagnosis Confirmation depends on pathogen examination, isolation and identification, and serological tests.
6. Prevention and treatment (1) Prevention: Strengthen sanitation and epidemic prevention, and disinfect regularly. Sick animals should be isolated promptly. When introducing breeding stock from abroad, customs quarantine work must be strengthened, with isolation and observation for 1 month, and they can only be transported back if disease-free. (2) Treatment: There is currently no effective therapy. Chinese herbal medicines such as honeysuckle, forsythia, isatis root, and dyers woad leaf can be tried, ground into powder, and taken orally at 5 grams per fox, 2 times a day, for 3 to 5 consecutive days.