More reporting about the bighorn/domestic sheep disease study
Other than the study itself, this is the first time that I’ve heard Dr. Srikmaran talk about last year’s study which confirms that domestic sheep diseases kill bighorn sheep.
“I am not that happy about this finding. Some people’s livelihood depends on domestic sheep,” [But the] “organisms did not exist anywhere else. They could only come from one place, the domestic sheep.” – Dr. Subramaniam Srikmaran
Some people who support the sheep industry have made misrepresentations of what the study actually says. They say that “these data show that even extended fence line contact of 2 months didn’t lead to disease and death. Disease required co-mingling for a minimum of 48 hours and this was after transmission had already occurred in three of the bighorn sheep.”
I’ve had the chance to read the study and, in fact, it does not say that it took two days of commingling to produce disease. It says that one of the sheep died within two days of the beginning of commingling portion of the experiment. All four of the bighorn sheep, even the one which did not contract M. haemolytica during the fenceline portion of the study died within 9 days of the beginning of the commingling portion of the study. There is no evidence to support the claim that “disease required co-mingling for a minimum of 48 hours”.
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