Bovine Respiratory Complex Flashcards
Treatment success results from the joint action of what two things (one is applied by you the vet and the other has to do with the animal you are treating)?
(Animal defenses and appropriate drug treatments → no antibiotic is good enough without help from the animal)
You are treating calves on a farm which have previously been treated as a part of a large group in an attempt to prevent disease (metaphylaxis) with draxxin, which of the following drugs could/should you now be treating the calves with? There may or may not be multiple answers that are correct.
Zactran
Micotil
Excede
Nuflor
(Excede (ceftiofur/cephalosporin) or nuflor (florfenicol), the other two are in the same class as draxxin (macrolide))
If you expect ____ (a percentage) of calves or greater to be at risk for respiratory disease upon arrival to a farm, you should use metaphylaxis.
(35%)
You are currently dealing with an outbreak of respiratory disease in a herd of calves. At this time, you are still just treating individually identified sick calves but in what two situations would you pursue metaphylaxis?
(If you were to treat 25% or greater of the calves in the herd in one day OR if for three consecutive days, you have to treat 10% of the calves in the herd)
What three areas of the body are targeted by mycoplasma?
(Lungs (pneumonia), joints (lameness), and ears (ear infections, head tilt))
Why might calves with Mycoplasma infections be harder to identify for respiratory disease when compared to calves with Mannheimia infections?
(Mycoplasma does not produce the leukotoxin that Mannheimia does so calves with myco are usually not as ADR or off-feed like those with Mannheimia infections)
(T/F) Once a calf has joint issues related to a Mycoplasma infection, they will not be able to recover and should be euthanized.
(F, most calves will recover if given enough time and the appropriate husbandry (small lot with easy access to feed/water); myco attacks the joint capsules, not the cartilage itself)
What is the treatment for Histophilus somni?
(Prevention with CTC, 1 gm per 100 lbs body weight for 5 days)
Optimally how long would you wait and get the producer to wait after administering a long acting antibiotic prior to switching and treating with another antibiotic?
(48 hours, look for an improvement in attitude and appetite and a reduction in fever if there is one)
Of the following options, which is most important in preventing BRDC?
A - Vaccination programs
B - Metaphylaxis upon calf arrival
C - Appropriate calf purchasing, nutrition, and preventing other stressors
(C)
What are preconditioned calves?
(Calves that have been vaccinated at least 2 weeks prior to shipping, weaned for at least 45 days, and trained to eat and drink from a trough)
What vaccines should a preconditioned calf have received?
(IBR/BVD 1+2/PI3/BRSV combo, Mannheimia hemolytica, and 7-way clostridial/black leg)
What is appropriate processing for category 1 calves upon arrival to a new facility?
(Deworm them, delice them, and give them a coccidiostat)
What is appropriate processing for category 2 calves upon arrival to a new facility?
(Vaccinate with 5-way and 7-way within 24 hours of arrival, same parasite control as category 1)
Should metaphylaxis be considered for appropriate processing for category 3 calves upon arrival at a new facility?
(Yes, in addition to removing them from the market asap, providing fresh, clean water and free choice excellent quality hay, vaccinating them, administering parasite control and selenium, and +/- administering Pasteurella toxoid vax)
