What does bvd mean?

Bovine viral diarrhea can affect dairy cows and beef cattle, and its pathogenic virus is mainly transmitted through oral infection, including direct contact with body fluids, respiratory secretions or pollutants in the environment of infected dairy cows. After infection, the virus will invade cattle, causing extensive immunosuppression and organ damage. Bovine viral diarrhea can be divided into two subtypes: BVDV 1 and BVDV V2, which are slightly different in clinical symptoms and pathological changes.

The clinical manifestations of bovine viral diarrhea are varied, including diarrhea, dyspepsia, loss of appetite, weight loss, anemia, reproductive problems and immunosuppression. During the period of infection, cattle may have symptoms such as fever, abnormal coagulation function and respiratory tract infection. Bovine viral diarrhea not only threatens the health of individual cattle, but also causes huge economic losses to animal husbandry. Infected cows may miscarry or give birth to weak, deformed or stillborn fetuses. If young cows are exposed to the virus during the infection of pregnant cows, they may become latent infections and continue to spread the virus to other cows for life.

The key to prevent and control bovine viral diarrhea is to take comprehensive management measures, including vaccination, isolating new cattle, improving the sanitation of feeding environment, regularly monitoring the situation of cattle and eliminating cowherd. Early diagnosis and isolation of infected cattle can avoid the spread and further loss of the virus.

Bovine viral diarrhea is widespread in the world, which has a great impact on aquaculture. It is of great significance to know its transmission route and prevention and control measures and strengthen the management and disease monitoring of cattle to ensure the health of cattle and improve production efficiency.