IBR and BRSV Vaccination Strategies

IBR and BRSV are two viruses that play a big part in respiratory disease and reproductive loss. Vaccination works best when it is timed and handled with your vet's guidance.

Key points

IBR and BRSV are major players in respiratory and reproductive disease.
Vaccination works best alongside good nutrition and handling.
Vaccine types differ, so follow the label and your vet's advice.
Time vaccines around breeding, calving, and weaning.
Handle vaccine correctly and keep complete records.

What IBR and BRSV are

IBR, short for infectious bovine rhinotracheitis, is a herpesvirus that can cause respiratory disease, eye problems, abortions, and poor fertility. After infection, the virus can stay hidden in the animal and flare up under stress.

BRSV, bovine respiratory syncytial virus, mainly causes respiratory disease, especially in young calves and in stressed cattle. Both viruses are part of the bovine respiratory disease complex.

IBR can also affect the eyes and reproductive tract, so a herd with unexplained abortions or eye trouble may be worth discussing with your vet in this context.

Why vaccination fits into a herd plan

Vaccines can lower the severity of disease and reduce losses from these viruses. They are most useful as part of a plan that includes good nutrition, low-stress handling, clean facilities, and quarantine of new animals.

No vaccine gives perfect protection, and cattle that are stressed, thin, or sick may respond poorly. Plan for that when you set your schedule.

Vaccination timing can also be part of a buyer's expectations. Some buyers ask for proof of certain vaccines, so keep clear records if you sell calves.

Types of vaccines

Vaccines for these viruses come in different types, including modified-live and killed products. They differ in how they work, how fast protection develops, and whether they are safe for pregnant cows or nursing calves. Labels list what each product is approved for.

Your vet will choose products based on your herd, and will tell you which are appropriate for cows, heifers, bulls, and calves. Never use a product on a class of cattle the label does not list.

Do not use a product on a pregnant cow unless the label and your vet say that it is acceptable. Mistakes can cause abortion or other losses.

Modified-live products
Killed products
Combination products covering several diseases
Intranasal products for young calves, per your vet
Label limits for pregnant and nursing cattle

Timing concepts

Timing is a key part of strategy. Cows and heifers are often vaccinated ahead of breeding so protection is in place for pregnancy. Calves may be vaccinated before weaning so they enter the stress of weaning with some protection, with boosters as your vet advises.

Calves with antibodies from their dams may respond differently than calves without them, which is one reason timing and follow-up matter. Ask your vet to set the schedule for your herd.

If you buy cattle with unknown history, ask your vet whether they should be vaccinated on arrival or after a hold period, and how that fits with their stress and health.

Handling and records

Store vaccine as the label directs, protect it from heat and sunlight, mix only what you will use quickly, and use clean equipment. Follow Beef Quality Assurance injection guidance for site and technique.

Record product, lot number, expiration date, date given, group, and who gave it. These records help you and your vet review what worked and what to change.

Dispose of used needles and empty vaccine bottles as your vet and local rules direct, and keep sharps out of reach of children.

Questions to ask your vet

Come to the conversation with your calving dates, breeding dates, weaning plans, and purchase and sale plans.

Ask your vet what fits your herd rather than copying a neighbor's schedule.

Which products are right for our cows, heifers, and calves?
What is safe for pregnant and nursing cattle?
When should calves be vaccinated before weaning?
How should we handle purchased animals?
Do any buyers or programs require specific vaccines?

Common mistakes

Using a product not labeled for pregnant or nursing cattle, mishandling vaccine, skipping boosters, vaccinating sick animals without asking, and treating vaccine as a cure-all are the common errors. Another is waiting until weaning day to start. Build vaccination into your calendar early, and follow label directions and withdrawal times exactly.

When to get help: Ask your veterinarian to choose products and timing for IBR and BRSV, especially for pregnant cows and young calves. Follow the label and any withdrawal times exactly, and use Beef Quality Assurance injection practices.

Sources and further reading

Organization homepages are linked so you can search them for current guidance on this topic.

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