Current Progressive Dairy digital edition

0409 PD: BVDV symposium discusses the impact of virulence, host range and control

Bruce W. Hoffman Published on 25 February 2009

This year’s symposium on bovine viral diarrhea virus (BVDV) hosted almost 200 cattle producers, researchers and practicing technical service and university extension veterinarians.

The conference covered a wide range of topics including research, immunology, prevention and management of BVDV and was held before the National Cattlemen’s Beef Association’s annual convention in Phoenix, Arizona. The symposium was dedicated to Julia Ridpath of the USDA who continues to devote a tremendous amount of her career to research and focus on BVD. It is because of researchers like Ridpath that we have the tools and vaccines available today to combat BVD.



The symposium was the fourth national event held in the U.S. to focus on BVDV, which according to the field research continues to be the costliest virus in U.S. cattle production. Plans are to host the next meeting at a time when both beef and dairy producers can meet together. Although many of the articles and research presented dealt with Holsteins, the production part of the seminar was centered on beef production. The panel of producers at the symposium was a highlight for ranchers in attendance. The discussion centered around vaccination, testing for PIs and strong biosecurity in keeping the virus out of beef operations. These key points are the same in keeping BVD from causing problems on dairies.

All of the abstracts and presentations can be viewed at A new website devoted to BVD was launched during the show. The site,, lists both current articles, research and state programs for BVD and will be updated on a continual basis. PD

Bruce Hoffman



Test your knowledge

T F Macrominerals are minerals required by the body in relatively large quantities.

T F The abomasum is often referred to as “manyplies.”

T F Whole milk, by definition, contains 8 grams of fat and 120 calories per cup.

T F The world record holder for milk production is Jane of Vernon.

T F Cattle with Johne’s disease are usually infected soon after birth, but the first symptoms do not appear until 2 to 4 years of age.


T F A standard plate count is a test that measures bacterial content of raw milk to monitor milk quality.

T F The three basic elements contained in carbohydrates are carbon, helium, and oxygen.

T F Ringworm is a contagious disease caused by a virus.

T F Butter must contain a minimum of 18% fat.

T F Cyanide is a toxin found in wilted cherry tree leaves. PD

These are some questions from the Virginia 4-H Dairy Youth Program Website. For answers, e-mail .