Lepto Hardjo-Bovis Could Be Lurking Help avoid this quiet threat with a complete reproductive vaccine program
W
HAT’S HIDING IN YOUR HERD? ON MANY BEEF OPERA- tions, Lepto hardjo-bovis (LHB) — a primary cause of bovine leptospirosis in U.S. cow
herds and a leading contributor to reproductive loss — could be quietly harming cattle and costing producers. Cattle infected with LHB typically appear clinically
normal but can shed the bacteria for months or years, putting the entire herd at risk for poor reproductive performance, early embryonic death, delayed breeding, abortions, weak or stillborn calves and unexplained infertility. Early abortions may precede pregnancy checking and be wrongly identifi ed, leaving producers unaware of an underlying disease problem. “There are often no obvious clinical signs for LHB
infection — only decreased fertility and early embryonic death. This is what makes it so diffi cult to detect,” says Rich Linhart, DVM, DACT, cattle and equine technical services, Pfi zer Animal Health. To help ensure a herd, and the producer’s bottom
line, is protected against LHB, use a complete reproduc- tive vaccine that provides protection where it matters
most — the reproductive tract. For this, producers can look to the only viral com-
bination vaccine, BOVI-SHIELD GOLD FP® 5 VL5 HB, which helps: • prevent establishment of LHB in the reproduc-
tive tract • provide 365 days of protection against Lepto hard-
jo-bovis infections in the kidneys and shedding in the urine • prevent abortions caused by infectious bovine
rhinotracheitis (IBR) virus and bovine viral diarrhea (BVD) Types 1 and 2 persistent infections (PI) for at least 365 days • prevent Campylobacter fetus (vibriosis), para-
infl uenza type 3 (PI3) virus and bovine respiratory syncytial virus (BRSV). “To help prevent LHB infection, the best time to
vaccinate is early in the calf’s life,” Linhart says. “In addition to vaccinating cows, all heifers should also be vaccinated as young as possible to help prevent infec- tion before they can pass it on to their herd mates.”
42 The Cattleman May 2013
thecattlemanmagazine.com
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