NAVLE® Question of the day

MO TU WED TH FR

November 21, 2023

NAVLE

A herd of 25 Holstein heifers present with fever of 104-106°F (40-41.1°C) [N=100-102.5°F, 37.8-39.7°C], lethargy, and purulent nasal discharge.

They also have loud, harsh coughs.

Physical exam reveals crackles over the trachea, but not the lungs.

Fibrinonecrotic plaques are randomly dispersed over the nasal and ocular mucosa, but there are no oral ulcers.

Urine and feces appear normal.

Several affected heifers have an arched back and are straining because of a fibrinonecrotic vaginitis.

Which choice is the most important step to take next to evaluate and prevent this problem in the future?

A - Perform vaginal cultures for genital Campylobacter fetus venerealis

B - Check for elevated mycotoxin levels in feed, particularly zearalonone due to Fusarium spp.

C - Evaluate breeding program; Consider 100% artificial insemination or use of Tritrichomonas foetus-negative bulls

D - Review infectious bovine rhinotracheitis (IBR) vaccination protocols

E - Test water for Leptospira serovars; Check feed for fecal contamination by dogs with Neospora caninum

Zuku LIVE Seminar: Clin Path Cases for NAVLE® Success: Endocrine

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Clin Path Cases for NAVLE® Success: Endocrine

All your burning questions about endocrine answered!
We'll review the basics to help you succeed on the NAVLE® and BCSE.
We will also go over classic cases that highlight common clin path findings.

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