Bovine Veterinarian's Post-Mortem Series

The Post-Mortem Series is presented in partnership with Feedlot Health Management Services, Okotoks, Alberta. For more information, visit their website at www.feedlothealth.com.
Check this page often for new cases to diagnose.
Post-Mortem: Atypical Interstitial Pneumonia (AIP)
These images show a calf-fed heifer that had been on feed for 130 days, with no previous treatment history, when first treated for signs of respiratory distress on May 24. Feedlot Health veterinarians diagnosed atypical interstitial pneumonia (AIP).
Post-Mortem: Fibrinous Pneumonia
These images depict a steer calf that had been on feed for 20 days, at which time it was found dead in the pen. The veterinarians at Feedlot Health diagnosed this case as fibrinous pneumonia.
Post-Mortem: Myocarditis
This image depicts a heifer calf found dead on November 18th at 34 days on feed (DOF) with no prior treatment history for undifferentiated fever. The veterinarians at Feedlot Health diagnosed myocarditis, most likely caused by Histophilus somni.
Post-Mortem: Toe Tip Necrosis Syndrome (TTNS)
These images show a yearling heifer that died at 19 days on feed after having been treated for signs of lameness two days prior to death.
Post-Mortem: Serous Atrophy of Fat
These images depict a steer calf that had been on feed for 87 days, at which time it was found dead after a period of losing weight through the winter months.
Post-Mortem: Infectious Bovine Rhinotracheitis
The images depict a heifer calf that had been on feed for 78 days, at which time it was found dead in the pen. Two other post-mortems from the same pen were found to have similar lesions.
Post-Mortem: Ruminal Tympany Or Bloat
These images depict a steer calf that had been on feed for 272 days with no treatment history when it was found dead in the pen.
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Post-Mortem: Caudal Vena Cava Thrombosis
These images depict a steer calf that had been on feed for 152 days when it was found dead in the home pen.