Bovine viral diarrhea, also known as mucosal disease (also known as mucosal disease), is an acute, febrile infectious disease caused by the mucosal disease virus in cattle. The main features are sudden onset, rapid infection, increased body temperature, gastroenteritis and erosive stomatitis, cattle starvation, and diarrhea.
My brother's black and white flower cows have had this infectious disease before, and the symptoms of calves aged 6 to 18 months are the most severe. His family's dairy farm was arguably suffering from a huge crisis in its history, but fortunately the mortality rate of this infectious disease was not high, and after careful treatment, most of the calves survived.
The disease is mainly infected by mouth, susceptible animals eat contaminated water, feed after infection through the digestive tract, but also through inhalation of sick cattle breathing or cough discharge of toxic droplets infection.
Acute symptoms are common in calves, the specific symptoms are body temperature rise to 40 to 42 ° C, sick calves cough, runny nose, tears, sluggish eyes, shortness of breath, oral mucosa erosion or ulceration, accompanied by diarrhea, stool is watery, mixed with blood, odor.
Some chronic types are mostly acute to chronic, and the specific symptoms are repeated necrosis and ulceration of the oral mucosa, runny nose in calves, intermittent diarrhea, and tears, some calves will also have lameness, and some calves will have hair removal symptoms. After becoming chronic, it will lead to poor mental health, insufficient nutrition, stunted development of the calf, and finally can only be treated early.
Preventive measures: 1. Strengthen the breeding and management of calves on weekdays, and it is best to ask professional veterinarians as consultants for large-scale cattle farms to see how to do a good job in epidemic prevention measures.
2. Vaccination with a special vaccine for prevention. Cattle farms can choose to immunize the entire herd with inactivated mucosal disease vaccine once a year, which can greatly reduce the probability of viral diarrhea in calves.
Treatment measures: As mentioned earlier, the fatality rate of the disease is not high, and many calves with mild symptoms of this disease do not need to be deliberately treated, as long as they are fed clean and clean drinking water and no moldy and spoiled forage can be restored as soon as possible.
Relevant information found such a formula: when some calves have severe diarrhea, 50 grams of tannic acid can be used, with 30 grams of sulfamidine, 2 to 3 times a day orally, for 3 days. For calves with severe dehydration, glucose should also be supplemented in time.
In addition, calves should be given antibiotics to avoid infection, and an appropriate amount of vitamins should be supplemented. For calves with erosive mouths, an external compress of ice boron dispersion.
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The above combined with the calf viral diarrhea infectious disease encountered by my brother's dairy cows, helped you introduce the clinical symptoms, transmission routes, and preventive measures and treatment measures of this disease in detail, hoping to bring help to cattle breeders!