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How Sweet Potatoes Killed 200 Cattle Overnight
From Patricia Doyle, PhD
Hello Jeff - It appears that almost every time I do a Rense program, one of the ProMed moderators posts within an hour on a subject I discussed on your program. This time it was the Bovine die off in Wisconsin. Seems like the subject is "word for word" what I stated on your program. Maybe I was not as specific as I could have been and the moderator wants to be sure.  
I believe that Dr. Vanderloo is explaining the moldy sweet potato poisoning and how they tested for it and basically what the toxin does to cattle.
TG is Tam Garland and he (a ProMed Moderator) has been very helpful to me in the past as far as explaining to me various situations whenever I have contacted him.
The following should clear up any inconsistencies. Jeff, I do believe that those in high places are listening to you very carefully...
Date: 31 Jan 2010
From: Peter Vanderloo   Peter.Vanderloo@wvdl.wisc.edu
[Although ProMED-mail has posted the diagnosis of this bovine  die-off, this particular post is from the diagnostic laboratory  having done the work and is a useful confirmation of the diagnosis. - Mod.TG]
Subject: cause of death, steers in a Wisconsin feedlot from mycotoxin  in moldy sweet potato
This post is a response to a request for information regarding the  cause of death of approximately 200 steers in a Portage County,  Wisconsin feedlot.
In mid-January 2011, approximately 200 steers died in a Portage  County feedlot. Specimens from 2 animals were submitted to the  Wisconsin Veterinary Diagnostic Laboratory (WVDL) for testing.
Results from testing at a referral laboratory identified the presence  of ipomeanol in the feed. This compound is a mycotoxin present in  moldy sweet potato. Sweet potato waste, not intended for human  consumption, was a significant component of the diet of the steers at  the time of the disease event.
The major viral bovine pathogens of cattle (BHV1, BVDV, BRSV, Corona  virus) were not identified by PCR in the samples provided to the  WVDL. (When the deaths of the steers were 1st reported, there was  speculation that IBR/BVD was the cause of death.)
Based on history, clinical signs, macroscopic and microscopic changes  in tissue, and test results from the WVDL and the referral  laboratory, it is very likely that mycotoxin from moldy sweet potato  was a major factor in the disease and death loss observed in the these steers.
Peter Vanderloo DVM
Associate Director, WVDL
ProMED-mail would like to thank Dr. Vanderloo for providing details  on the investigations and diagnostic studies performed on this event.  A thorough comment regarding the mycotoxin and the toxic agent  ipomeanol was posted in ProMED-mail Ipomeanol poisoning, fatal,  bovine - USA: (WI) sweet potato 20110131.0370. - Mods.TG/MPP
Patricia A. Doyle DVM, PhD Bus Admin, Tropical Agricultural Economics Univ of West Indies Please visit my "Emerging Diseases" message board at:http://www.emergingdisease.org/phpbb/index.php Also my new website: http://drpdoyle.tripod.com/ Zhan le Devlesa tai sastimasa Go with God and in Good Health
Benjamin Franklin said, "They that 
can give up essential liberty to obtain a little temporary safety deserve 
neither liberty nor safety." 
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