Virginia Herd Health Management Services is located in scenic Madison, Virginia. The practice is owned and operated by Patrick Comyn, DVM.
Dr. Comyn graduated from North Carolina State University College Of Veterinary Medicine in 1988. He has been practicing in Madison since 1993.
He has concentrated his practice on Dairy and Beef cattle.
The areas he has developed include:
- Reproductive Ultrasound
- Embryo Transfer - with embryo export certification
- Nutritional consultation
- Bull Fertility
- General herd health management
BVD (Bovine Virus Diarrhea) PI calf in a group
One of these 3 heifers is a BVD PI (persistantly infected) animal. She was responsible for the death of 4 in a group of 40 and a BRD treatment cost of at least $40 per head on the whole group. She looks normal who ever she is.
What does BVD infection do? The virus causes immunosuppression (poor disease resistance), abortions, early embryonic death and abnormal brain formation with neurologic function deficits.
the virus can also jump to deer and llama's / alpaca's
Can you tell who she is? We couldn't unless we tested.
Solution - test and identify. Then euthanize the PI animal(s) to remove the source of the infection.
The PI heifer was infected in utero between 3 and 5 months and is shedding trillions of virus particles per day.
Vaccination and antibiotics will not fix an outbreak due to a PI BVD animal. One must test and identify!
Center - Positive Snap test. Left and Right - negatives
These tests were done at the chute
Hardware killed this cow
A piece of wire taken out of a cow at necropsy. It punctured an artery in the omasal wall and the cow bled to death internally. Origin? Probably from a load of cotton seed. Solution? Give a Magnet to all heifers at at calving.
For Appointments please call us at :
P. O. Box 555
110 South Main Street
Madison, VA 22727
E-Mail Address: firstname.lastname@example.org
Click below for a map to our office!
Dr. Patrick Comyn
Virginia Herd Health Management Service
PO Box 555, Madison VA. 22727
540-948-5238 office - 540-948-3564 fax - 540-829-3625 mobile