05/12/2008 08:10AM
The PI-3 virus is relatively common in cattle and is found worldwide. Affected animals exhibit watery to yellow-colored discharges from the eyes and nose, coughs, increased respiration rates and fever. By itself, PI-3 is a relatively mild infection; death loss to the disease is rare, maybe even nonexistent
05/09/2008 08:17AM
As with other viruses, antibiotics have no affect on the BRSV infection. However, antibiotic treatment is indicated in attempts to control the secondary bacterial infections. In addition to antibiotics, treatment during an outbreak of the late syndrome in calves (also feedlot calves) would include withholding
05/07/2008 08:36AM
For many years, the feedlot industry identified a respiratory problem in cattle that was diagnosed as an allergic reaction to changes in feed. Because of the microscopic lesions found in the lungs, a virus was suspected, but when tissue samples were submitted to the laboratory, no virus could be found
05/02/2008 08:47AM
The two major areas to emphasize for prevention are management and vaccination. Of the two, management is usually much more important.
1. Management
Evaluate all the possible causes for stress on the cattle and determine which ones can reasonably be eliminated or at least reduced. Look carefully
05/01/2008 12:38PM
CLINICAL SIGNS
The most common signs of BRD are nasal and eye discharges, coughing, fever, decreased appetite, varying degrees of breathing difficulty and noise, rapid breathing, depression, droopy ears, open mouthed breathing and death. These vary greatly, depending on the stage and extent of the disease
04/30/2008 07:25AM
The causes of BRD are multiple and complex, but the three factors of stress, viral infection and bacterial infection are almost always involved in cases of severe disease. A wide variety of different stressors and agents may be involved in the disease process.
Some
04/18/2008 08:04AM
Extension Service veterinarians in North and South Dakota are urging cattle producers to include prevention in their branding and turnout calf vaccination programs.
Drought conditions prevail in parts of both states, so short supplies of grass and water are of major concern to producers. Sick calves
03/25/2008 01:42PM
When enclosed housing is used for raising calves, proper ventilation becomes a critical consideration for calf health. The “weakest link” in the physical makeup of a calf is the digestive tract, but only for the first three weeks of life. After this first three weeks, once the gut has matured, the respiratory