NAVLE Prep Questions and Answers Already Passed

NAVLE Prep Questions and Answers Already Passed What nerve(s) need to be blocked in order to dehorn cattle? Cornual What nerve(s) need to be blocked in order to dehorn goats? 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 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 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] 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 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? 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.