WFSC 301 Lecture Notes - Lecture 6: Bighorn Sheep, Sheep, Pasteurella
27 Feb 2017
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Tuesday, february 14, 2017 at 1312 pm (bhsrdc) Bighorn sheep = species of specal concern in most of their range. Bhs are easily stressed making them more susceptible. Can be diagnosed anytime bighorn sheep exhibit signs of respiratory distress or dead sheep with lung lesions are observed. Determining the initial agent remains dif cult and controversial - agent could leave after death. Lung, tonsil culture and or pcr typically identi es an agent, but it may not be the primary pathogen. Pasteurella family have caused multiple disease syndromes (usually pneumonia) in a variety of north american wild species since the 1800s. Was documented by 1925, although the causative agents are still not completely understood today. Bighorn populations declined from nearly 2 million to as low as 15,000 by 1960 - bottleneck. Fairly recently it has been proposed that mycoplasma ovipneumoniae is the primary pathogen. Most antibiotics target the cell wall, this special antibiotics needed for myciplasma infections.
