NAVLE EXAM WITH CORRECT ACTUAL
QUESTIONS AND CORRECTLY WELL
DEFINED ANSWERS LATEST 2024 – 2025
ALREADY GRADED A+
Which one of the following choices is the most common cause of these signs in
the horse?
A - Tetanus
B - Botulism
C - Cervical vertebral malformation/malarticulation
D - Lead toxicity
E - Occipitoatlantoaxial malformation/malarticulation - ANSWERS-...
Which of the following is the most common skin tumor in horses?
Basal cell tumor
Squamous cell carcinoma
Cutaneous lymphoma
,Sarcoids
Melanoma - ANSWERS-Sarcoids
Which one of the following steps is most effective to treat this problem?
A - Amprolium-medicated feed for whole herd, 2 weeks; Increase ventilation
B - Clindamycin PO for exposed rabbits, 8 days; Cull affected animals
C - Amipcillin PO for affected rabbits, 10-14 days
D - Isolate affected animals, Lincomycin in water 2-3 weeks
E - Penicillin IM for all rabbits, 5-7 days - ANSWERS-Penicillin IM for all rabbits, 5-7
days
Two bucket-fed veal calves are depressed and stunted and have sticky feces
coating their hindquarters. Fluid-splashing sounds are audible during auscultation
over the left flank when a calf is drinking.
Passage of a stomach tube obtains a rancid-smelling liquid with a pH of 5.2
[N=5.9-6.2]
What nerve(s) need to be blocked in order to dehorn cattle? - ANSWERS-Cornual
What nerve(s) need to be blocked in order to dehorn goats? - ANSWERS-cornual
nerve and infratrochlear nerve
,Several rabbits in a commercial meat operation have developed genital scabs,
perineal ulcerations a crusty exudate around the nose and eyes.
Microhemaglutination tests are positive for treponematosis.
Which one of the following choices is the most appropriate treatment?
A - Cull affected calves
B - Remove fermented rumen contents, flush with saline
C - Wean affected calves; Shift to bottle-feeding for well calves
D - Vitamin E/Selenium injections, plus dietary supplements
E - Inoculate rumen fluid from a healthy cow into calf by stomach tube -
ANSWERS-B - Remove fermented rumen contents, flush with saline
This is the clinical picture of a ruminal drinker calf with chronic indigestion from
milk deposited directly into the rumen.
Treat by removing the fermented material and flushing the rumen with saline.
Attempt to induce gastric/reticular groove closure during feeding by inducing
vigorous sucking activity with a finger before feeding milk. If calves relapse,
consider weaning.
, The problem occurs due to failure of the gastric groove reflex, which normally
shunts milk directly into the abomasum, (bypassing the rumen). Most often seen
in bucket fed calves who gulp their milk.
Abortions due to brucellosis tend to occur at what stage of pregnancy? -
ANSWERS-D - Last half of pregnancy
Typically, Brucellosis causes abortion in the LAST HALF of pregnancy, for the 5th
month onwards. Last trimester is also a good answer, though not entirely correct.
You might remember "Bruce is always late".
Expect STILLBORN calves. Cows only abort ONCE.
Brucellosis is REPORTABLE.
The vaccines used are the Brucella abortus strain 19 vaccine or the RB51 vaccine,
given to heifer calves 4-12 months old, along with a USDA tattoo in the right ear.
Remember: "The right ear is the RIGHT EAR".
BVD and Trichomoniasis (occasionally) can cause early abortion in cows, but
MOST things cause abortion late, like 3rd trimester.
Listeriosis and Arcanobacterium pyogenes can cause abortion at any time during
pregnancy.
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